LESSO Valve Products Manual - 电子画册在线预览、各类电子画册在线制作-云展网平台

LESSO

PRODUCTSMANUAL VALVE

LESSOGROUP

OEstablished in 1986, LESSO (Stock Code: 02128.HK) is a global leader in home furnishings and building materials. The Group' s business portfoliospansplasticpiping,building materials andhomefurnishings,environmental protection,newenergy,supply-chainserviceplatforms and others.Itoffersawiderangeofproductssuchaspipesphotovoltaicsplumbing andsanitaryware,integralkitchenmaterialsntegral doors andwindows,aluminumformwork and smart scaffolds,waterpurifiers,water-proofingmaterials and sealants,fire-fighting equipment, valves,cables,lighting.hygiene materials,itemsforenvironmentalprotection,agricultural facilities,andoceanic aquaculture cages.In2023, LESSO'ssalesrevenuereachedoverUSD4.38billion.

Since implementing astrategyo gobaliztionand expanding itsglobal presence LEsso hasevolvedintoa sophisticated mutiaional. t boasts more than 30 advanced production bases worldwide,broadening its industrial and sales networks to cover Asia,North America,South America,Europe,Africa,and Oceania.This enables LESsOto provide quality products and services for global customers in accordance with itscontinuouslyimprovedstrategiclayout ina timelyand efficientway.

LESsohasfounded itsR&Dcenterwithmore than1oooscientificresearchers,nationallyaccredited enterprisetechnologycenter,and two post-doctoral workstations to support its innovation and technical development.The Group has taken a leadingrole in the revision of over120 internationaland Chinese industry standards.LESSO owns over 2,9o0patents (some of them arepending). and provides over 10,0o0 varieties of products,making it one of the most comprehensive manufacturers in the piping industry. Its products are utilized globally in different areas, includinghomedecoration,civilconstruction,municipal watersupply,drainage,energymanagement,powersupplyand telecommunications, gas supply,fire-fighting,environmental protection,agriculture,oceanic aquaculture,etc.

As a domestic manufacturer of extensive homefurnishings and building materials,China Lessoprovides over 10,ooovarieties of products with all specifications. Its products are being widely used in many areas, including home decoration, civil construction,municipal water supply, drainage,energymanagement,power supply and telecommunications,gas supply,fire-fighting,environmental protection,agriculture,oceanic aquaculture,andmore.

True to itsidea of “Envisioning the Better,Building the Future"ChinaLesso remains committed to creating a better living environment,and advocating idealciiesfeaturing greenness, livabilityand effiencyWithconcerted effortsfromvarious sectors,Lessowilfully play its role in building green, livable, and efficient cities so that people could enjoy health and happiness anytime and anywhere in their city life.

Guangdong LESSO Valve Co., Ltd

① Guangdong LESSO Valve Co., Ltd is wholly owned subsidiary of China LESSO Group Holdings Ltd.This company was established on 2008 with registered capital of 100,000,000 HK$ and is located inYunan county,Yunfu city of Pan Pearl RiverDelta.Factory covers an area of 66667square meter,aswellas20,000 square metersforbuilding area withGarden-like factory environment. For the purpose of fulfilling the requirement from marketing and exhibition of it own advantages,company alwaysrecruitsvariousseniortechnical experts and absorbsforeign managementexperiences.Now company has had professional designer,R&D staff and production management team,which builds the solid foundation for developmentofenterprise.

OCompanyhas about 150sets of various high-tech mechanical machines such as large-scale automatic welding machine and turnery CNC imported from overseas, the NC lathe,NC boring machine,etc.Automatic epoxy coating lines and motor-driven sanding processing system are also introduced to company.LESSOValve adopts the design assisted by solid work,3D and auxiliaryCAD2Dsoftware,alsoincluding physical&chemical analysis device,impacttest device,propertiesof valvetest device and so on.Allabove machines and devicespresent thereliable data for QC.Now the capability of production is up to 80,000 sets per year.Additional 60,000,000 RMB was devoted tobuild new casting workshop in 2013. The new casting workshop willbe finished and begin to run in mid of 2004. The anticipated capability for new workshop is upto10,0o0tonsperyear.

① Guangdong LESSOValve Co., Ltd has obtained ISOgoo1 Certification and XINHUA Water-saving Certification, as well as license for National Special Equipment Manufacturing.Company also got the title of YunfuPredominant Private Enterprise, YunfuPromise-keepingUnit,YunanExcellentEnterprise,etc.

① GuangdongLEssoValveCo.,Ltd owns7seriesproductsincluding over300categories,such as gatevalve,butterfly valve,check valve,controlling valve,repairing tool,etc.Products are made of QT450-10 Nodular Cast lron,NBR,2Cr13, and other high-quality materials and allarefollowing the corresponding design Standards of GB,ISO,QEO,EST.LESSO valves canbe used mainly in supply&drainage piping and cold&hot ventilation device.The application of the products covers Petroleum, chemical industry, power industry,high-rise buildings, mining industry, metallurgy, pharmacy, textile, etc. Now company has sold products in domestic and HK, Macao market, honored specially in constructing of several National KeyProjects and harvests great acceptance and compliment fromcustomers.

{<} Guangdong LESSoValve Co.,Ltd constantly sticks to the operationstrategy:Recognize quality aslife,take science and technology asflagship,set customers'satisfaction as utmost target.Company is devoting itself to strengthening coremanufacture and competition all the time, leading the industry by it own innovation, as well as providing high-quality products andcomprehensiveservicetocustomers.

Ductile lcon Valve

Gate Valve Series 01/

Flanged Resilient-seated GateValve (Non-rising Stem)
Flanged Resilient-Seated Gate Valve (Rising Stem)
ThreadedResilient-seatedGateValve
Hard Seal Gate Valve (Non-rising Stem)
Grooved Resilient-seated Gate Valve (Non-rising Stem)
Security Flanged Resilient-seated Gate Valve (Magnetic-lock Type)
SecurityFlanged Resilient-seated GateValve (Mechanical Type)
Security Threaded Resilient-seated GateValve (Magnetic-lock Type)
Security Threaded Resilient-seated Gate Valve (Mechanical Type)
Socketed Resilient-Seated Gate Valve with Gatage
Hard Seal Gate Valve with Gatage (Non-rising Stem)
Grooved Resilient-seated GateValve with Gatage (Non-rising Stem)
FlangedWormGearGateValve

Butterfly Valve Series 21/33

Flanged Worm Gear Butterfly Valve
Flanged Double EccentricWormGearButterflyValve
Flanged Worm Gear Butterfly Valve (Large Diameter)
SignalButterfly Valve
Wafer-typeWormGearButterflyValve
Wafer-type Manual Butterfly Valve
GroovedWorm GearButterflyValve
Grooved Manual Butterfly Valve
GroovedSignalButterflyValve

Repair Clamp Series 34/40

Stainless Steel Repair Clamp Rapid Repair Coupling Repair Coupling PE/ PVC pipe Repair Clamp

Repair Clamp Series 41/44

Straight Pipe Repair Clamp (For Steel Pipe) Straight Pipe Repair Clamp (For Plastic Pipe)

Check Valve Series 45/50

RubberSheet CheckValve Flanged Check Valve Flanged Silencing Check Valve

51/57

FlangedStrainerValve Y Draw-bar Extension Strainer GroovedStrainer

JOINTSERIES 58/61

Stop Valve series 62/63

Control Valve Series 64/75

Remote-controlledFloatValve
Pressure ReducingValve
Slow-closing Silencing Check Valve
PressureRelief/Holding Valve
Hydraulic Electric Control Valve
Pressure-differential BypassBalancing Valve
Emergency Shut-off Valve
Flanged Single-outlet Vent Valve

Cast Steel Valve

GateValve Series 76/78

ButterflyValveSeries 79/82

Wafer-type Worm Gear Butterfly Valve Flanged Worm Gear Butterfly Valve

Check Valve Series 83/86

Flanged Swing Check Valve Flanged Lift Check Valve

Strainer Series 87/88

Stop Valve series 89/9-

Flanged Expansion Joint

94/98

LESSO VALVESSUCCESS IN QUALITY

Overview of gate valve series products:

The gate valves series products mainly include flange resilient seated gate valves, belland spigot soft sealing gate valves, soft sealing gatevalves,hard sealing gate valve,groove elastic seat sealing gatevalvessecurity flange elastic seat sealing gate valves, security soft sealing threaded gate valves, elastic seat sealing gate valves with gatage,bell and spigot soft sealing gate valves with gatage,hard sealing gate valves with gatage, groove elastic seat sealing gatevalves with gatage,flange worm gear gate valves and are widely used on the pipes of tap water, waste water, buildings, food and other fluids.

Internal Structure of Gate Valve

Seethefollowingtableformaterialsofmainpartsand componentsofgatevalveseriesproducts

ProductName	NameofProductParts	Materials
Gatevalveseries	Valvebody	QT450-10
	Flashboard	QT450-10+nitrilerubber
	Valverod	2Cr13
	Sealing ring	EPDM
	O-shaped sealingring of thevalverod	Nitrile rubber
Threadedgate valve	Valvebody	QT450-10
	Flashboard	QT450-10+nitrile rubber
	Valverod	59copper
	Sealing ring	PA66
	Oring of thevalve rod	Nitrilerubber

The adopted standard of gate valveseriesproducts

Series	AdoptedStandards
Gatevalve series	Designand manufacturing standard GB/T12232
	Design and manufacturing standard CJ/216-2013
	StructurallengthstandardGB/T12221
	PressureteststandardGB/T13927
	FlangesizestandardGB/T17241.6
Threaded gatevalve	StructurallengthstandardGB/T12221
	PressureteststandardGB/T13927

	FlangesizestandardGB/T17241.6

Flanged Resilient-seated Gate Valve (Non-rising Stem)

Features	Applications	TechnicalParameters
1.Washersofwearparts:thefilleradoptsnitrilerubbertoprovidereliable sealingandlongservicelife 2.Rubber wrapping of the entire body.The valve is wrapped with rubber wholly.	Widelyusedonthe pipes of tap water, waste water, buildings andfoodandother fluids for adjusting and throttling devices. Applicabletocutoff and open of fluid in the pipes.	Nominal pressure	1.0MPa	1.6MPa
Thegoodcoveringperformanceandprecisegeometricsizeensures thereliable sealing.		Casing test	1.5MPa	2.4MPa
3.Light weight;thevalvebodyadopts nodular ductile iron to make it easy for installation. 4.Thevalve seatwithflatbottom:The bottomadopts flatbottomvalveseat		Sealing test	1.1MPa	1.76MPa
design same as the water pipe. No production of deposit of sundries,more reliablesealing.		Work temperature	0.08	≤80℃
5.Corrosion resistance;the inner cavity adopts non-poisonous epoxyresin to prevent corrosion and rust. Not only used for unboiled water but also for waste water system.		Applicable medium	Water	Water

Z45X-16Q (Product Code:1051）main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	180	125	340	4-19	2
65	190	145	370	4-19	2
80	205	160	410	8-19	1
100	230	180	450	8-19	1
125	255	210	480	8-19	1
150	267	240	550	8-23	1
200	295	295	630	12-23	1
250	335	355	750	12-28	1
300	360	410	820	12-28	1
350	381	470	1150	16-28	1
400	406	525	1300	16-31	1
450	432	585	1400	20-31	1
500	457	650	1500	20-34	1
600	508	770	1700	20-37	1

) Flanged Resilient-seated Gate Valve(Non-rising Stem)

Unit: mm

Z45X-16Q Il (Product Code:1053) Main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	180	125	340	4-19	2
65	190	145	370	4-19	2
80	205	160	410	8-19	1
100	230	180	450	8-19	1
125	255	210	480	8-19	1
150	267	240	550	8-23	1
200	295	295	630	12-23	1
250	335	355	750	12-28	1
300	360	410	820	12-28	1
350	381	470	1050	16-28	1
400	406	525	1160	16-31	1
450	432	585	1325	20-31	1
500	457	650	1416	20-34	1
600	508	770	1629	20-37	1

Z45X-10QI(Product Code:1056）Main external size and connection size

DN	L	D1	H	po-u	Quantity (piece/case)	Remark
50	178	125	340	4-19	2	1.0MPa
65	190	145	370	4-19	2	1.0MPa
80	203	160	410	8-19	1	1.0MPa
100	229	180	450	8-19	1	1.0MPa
125	254	210	480	8-19	1	1.0MPa
150	267	240	550	8-23	1	1.0MPa
200	295	295	630	8-23	1	1.0MPa
250	335	350	750	12-23	1	1.0MPa
300	360	400	820	12-23	1	1.0MPa
350	381	460	1150	16-23	1	1.0MPa
400	406	515	1300	16-28	1	1.0MPa
450	432	565	1400	20-28	1	1.0MPa
500	457	620	1500	20-28	1	1.0MPa
600	508	725	1700	20-31	1	1.0MPa

Z45X-10Q Il (Product Code:1057）Main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	178	125	340	4-19	2	1.0MPa
65	190	145	370	4-19	2	1.0MPa
80	203	160	410	8-19	1	1.0MPa
。 100	229	180	450	8-19	1	1.0MPa
125	254	210	480	8-19	1	1.0MPa
150	267	240	550	8-23	1	1.0MPa
200	295	295	630	8-23	1	1.0MPa
250	335	350	750	12-23	1	1.0MPa
300	360	400	820	12-23	1	1.0MPa
350	381	460	1050	16-23	1	1.0MPa
400	406	515	1160	16-28	1	1.0MPa
450	432	565	1325	20-28	1	1.0MPa
500	457	620	1416	20-28	1	1.0MPa
600	508	725	1629	20-31	1	1.0MPa

Please note that the product specification or quotation with “"on the page is new.

Flanged resilient-seated Gate Valve (Non-rising Stem)

Features	Applications	TechnicalParameters
1.Washers of wear parts;the filleradopts nitrile rubber to provide reliable sealing and longservicelife.	Widely used on the pipes of tap water,waste water, buildingsandfoodand other fluidsforadjusting and throttling devices. Applicable to cutoffand open of fluid in the pipes.	Nominal pressure	1.0MPa	1.6MPa
2. Rubber wrapping of the entire body. The valve is wrapped with rubber wholly.Thegoodcoveringperformanceandprecisegeometricsize ensures thereliable sealing.		Casing test	1.5MPa	2.4MPa
3.Light weight;the valvebodyadopts nodular ductile iron to make it easy for installation.		Sealing test	1.1MPa	1.76MPa
4.Thevalveseatwith flatbottom:Thebottom adoptsflat bottomvalve seat design same as the waterpipe.No production ofdeposit of sundries,more reliable sealing.		Worktemperature	≤80℃	≤80℃
5.Corrosionresistance;the inner cavityadoptsnon-poisonous epoxy resintopreventcorrosionandrust.Notonlyusedforunboiledwaterbut alsoforwastewatersystem.		Applicable medium	Water	Water

Z45X-16Qll-B (Product Code:1060) main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	178	125	293	4-19	48
65	190	145	320	4-19	56
80	203	160	364	8-19	36
100	229	180	398	8-19	36
125	254	210	470	8-19	30
150	267	240	528	8-23	24
200	292	295	646	12-23	1

Z45X-10Qll-B (Product Code:1062)main external size and connection size

DN	L	D1	H	n-0d	Quantity (piece/case)	Remark
200	292	295	646	8-23	1	1.0MPa

Flange resilient seated sealing gate valves (Rising stem)

Features	Applications	TechnicalParameters
1.Thevalveadoptsintegratedrubberwrapping.Reliable sealing,long service life.	Widely used on the pipes of tap water,waste water, buildings,foodand otherfluidsforadjusting and throttling devices.The open-close part offlange elastic seat sealing gate valves (exposed rod) is the flashboard.Themovement direction of the flash- board isperpendicular to flow direction.Thegate valve onlycarriesoutfullopeningand fullclosing and does not perform adjusting and throttling. In additiontotheadvantageofelasticseatsealing	Nominal pressure	1.0MPa	1.6MPa
2.The valve body is made of ductile iron;light weight and convenient installation. 3.Thevalvebodybottomadopts flatvalveseatdesignsame		Casing test	1.5MPa	2.4MPa
as the water pipe and does not produce deposit of sundries; thesealing ismorereliable.		Sealingtest	1.1MPa	1.76MPa
4.Corrosionresistance;the inner cavity adopts non-poisonous gate valves,the flange elastic seat sealing gate epoxycoatingtopreventcorrosionandrust.Notonlyused for valves(exposedrod)showsvalve openness unboiledwaterbutalsoforwastewatersystem. intuitively and. The opening and closing is quick and reliable.The valve is usually used for fire fighting		Work temperature	≤80℃	≤80℃
5.Convenienttolubricatethevalverod.Theopenandclose and Industrial system and installed at a place high to degreeofthevalveisobvious. theground.		Applicable medium	Water	Water

Z41X-16QII (Product Code:1063)main external size and connection size

DN	L	D1	H	n-0d	Quantity (piece/case)	Remark
50	180	125	403	4-19	2
65	190	145	470	4-19	2
80	205	160	522	8-19	1
100	230	180	643	8-19	1
125	255	210	700	8-19	1
150	267	240	06	8-23	1
200	295	295	903	12-23	1
250	335	355	1074	12-28	1
300	360	410	1240	12-28	1

Z41X-10QII (Product Code:1067） main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	178	125	403	4-19	2	1.0MPa
65	190	145	470	4-19	2	1.0MPa
08	203	160	522	8-19	1	1.0MPa
100	229	180	643	8-19	1	1.0MPa
125	254	210	700	8-19	1	1.0MPa
150	267	240	903	8-23	1	1.0MPa
200	295	295	903	8-23	1	1.0MPa
250	335	350	1074	12-23	1	1.0MPa
300	360	400	1240	12-23	1	1.0MPa

Please note that the product specification or quotation with “●" on the page is new.

Soft sealing gate valves

Section View

1 Valvebody	4 Sealing ring	7 Screwrod sealing ring	10Flatwashers
2Flashboard	5Valvecover	8 Hand wheel	11Acomnuts
3Screwrod	6Screwrodpositioningnuts	9Nameplate

Features	Applications	TechnicalParameters
1.Thevalvebody adopts precision casting.Theprecise size ensures the sealing performance of the valve. 2. The inside of the valve is painted with non-poisonous epoxyresin to prevent corrosion and rust. It is	Widelyused onpipes oftapwater,waste water,buildings,food and otherfluidstoact as adjusting and throt- tling devices.Applica- bletocutoffand opening of throttling	Nominal pressure	1.6MPa
usednotonlyforunboiledwaterbutalsoforwastewater treatmentsystem.Theinsideand outside surfaceofgatevalvesarewrappedwithrubberwhollyso thatrustywaterand corrosionwillnotoccur. Theunboiledwatermaybedrunk.		Casing test	2.4MPa
3.The compensation effect provided by deformation caused by whole wrapped rubber of the flashboard is used to achieve good sealing effect.It overcomes the phenomenon of poor sealing,water leakage and rustofcommongatevalves.		Sealing test	1.76MPa
4.Thevalvebodybottomadoptsflatvalveseatdesignsameasthewaterpipeanddoesnotproduce depositofsundries;smallflowresistance and unobstructedflowpassage.		Work device on the pipes. temperature	≤80℃
5.Theadoptionofthreadedconnectionenablesconvenientandquickinstallation.	Applicable medium	Water

Z15X-16Q(Product Code:1071）main external size and connection size

DN	L	Lmin	S	H	DO	Quantity (piece/case)	Remark
15	67	11	32	118	60	48
20	70	13	38	123	60	36
25	82	15	46	143	70	24
32	85	17	52	144	80	16
40	96	18	62	174	90	12
50	110	20	75	186	97	8
65	120	24	92	217	120	9
80	145	30	110	265	139	4
100	165	33	134	284	160	4

Hard sealing gate valves (Non-rising stem)

Features	Applications	TechnicalParameters
1.Compact structure,reasonable design,good rigidity of the valve,unob- structedpassage,lowflowresistance.	Widelyusedonpipesoftap waterandsteamtoactasthe opening and closing device to	Nominal pressure	1.0MPa	1.6MPa
2.Thecasingmaterial adoptsQT450-10,providinggoodrigidity 3.Applicable tocutoff and opening offluid in thepipes.		Nominal pressure	Casing	2.4MPa
4.Unobstructed flow passage,smallfluid resistance,the sealing surface suffersfrom small washing and corrosion of themedium. 5.Theflowdirectionofmediumisnotlimitedwithoutinterferencetothe		test	1.5MPa
flow and pressure drop. getthroughorcutoffthe medium in the pipes. 6.Simpleshape,short structurallength,good rigidityof thevalve，saving		Sealing test Work	1.1MPa	1.76MPa
forceforopeningand closing. 7.Thesealing surface adopts copperalloy,providing long service life. 8.Washersofwearparts;thefilleradoptsnitrilerubber toprovidereliable sealing.		temperature Applicable medium	≤80℃ Water	≤80℃ Water

Z45T-16Q (Product Code:1801）main external size and connection size

DN	L	D1	H	D	pO-u	Quantity (piece/case)	Remark
50	178	125	270	165	4-19	2
65	190	145	273	185	4-19	2
80	203	160	308	200	8-19	1
100	229	180	333	220	8-19	1
125	254	210	384	250	8-19	1
150	267	240	436	285	8-23	1
200	292	295	542	340	12-23	1

Z45T-10Q (Product Code:1801） main external size and connection size

DN	L	D1	H	D	pO-u	Quantity (piece/case)	Remark
50	178	125	270	165	4-19	2	1.0MPa
65	190	145	273	185	4-19	2	1.0MPa
80	203	160	308	200	8-19	1	1.0MPa
100	229	180	333	220	8-19	1	1.0MPa
125	254	210	384	250	8-19	1	1.0MPa
150	267	240	436	285	8-23	1	1.0MPa
200	292	295	542	340	8-23	1	1.0MPa

Please note that the product specification or quotation with on the page is new.

Groove elastic seat sealing gate valves (Non-rising stem)

1Valvebody	5 Top cover sealing ring	9 Gland sealing ring	13 Hand whee
2Flashboard	6Topcover	10Gland	14Washers
3Flashboardnuts	7 Inner hexagon bolts	11 Screw rod sealing ring	15 Nameplate
4Screwrod	8Flatwashers	12 Dustproof ring	16Acornnuts

Features	Applications	TechnicalParameters
1.Flexible opening and closing and saving force;quickand convenient installation;	Applicable to pipes of watersupplyand drainage,gas and otherliquidtoactas adjusting and throt- tling devices.	Nominal pressure	1.6MPa
2.Able to overcome the deviation produced due to non-axial connection with the pipes within certain scopetosolve thematerialstressdue toexpansionand contractionofthepipes.		Casing test	2.4MPa
3.Gatevalvesutilizecompensationeffectofthemicrodeformationoftheelasticflashboard toachieve goodsealing effect.It is characterized by light opening and closing,reliablesealing,good elasticmemory and long service life and other obvious characteristics.Thebottom adopts flatbottom design same as the water pipe. It is not easy to cause deposit of sundries so that the fluid is unobstructed and smooth.		Sealing test	1.76MPa
4.Theflashboard adopts high qualityrubber towrap the inside and outside wholly.Moreover,the rubber contactsfirmlywithnodularductile ironplateand isnoteasy tofalloff.		Work temperature	0.08>
5.Quick, simple,reliable,vibration separating and absorption, economic and safe,no pollution, small space occupation and convenient to repair.		Applicable medium	Water

Z85X-16Q (Product Code:1011）main external size and connection size

DN	L	A	B	C	D	H	Quantity (piece/case)	Remark
50	140	14.5	9.5	2.2	60	263	4
65	160	14.5	9.5	2.2	76	287	4
80	170	14.5	9.5	2.2	89	322	2
100	180	16	9.5	2.2	114	348	1
125	200	16	9.5	2.2	140	417	1
150	230	16	9.5	2.2	165	467	1
200	243	19	13	2.5	219	589	1

Security flange elastic seat sealing gate valves (megnetic lock type)

Features	Applications	TechnicalParameters
1. The flashboard is wrapped with rubber wholly; reliable sealing and long service life.	Mainly used for tap waternetwork,water supply of living quarters or heating management, gardengreening to	Nominal pressure	1.0MPa	1.6MPa
2.Theproductsmaybe locked at anyposition.Onlyuse theespecialconfigured key to openandclosethevalve,providingreliableanti-theftproperty. 3.Thevalvebody adoptsprecisioncasting.Theprecise sizeensures the sealingperfor-		Casing test	1.5MPa	2.4MPa
manceof thevalve. 4. The inside of the valve is painted with non-poisonous epoxy resin. The inner and		Sealing test	1.1MPa	1.76MPa
outersurfacesarewrappedwhollywithrubbersothattherustywaterandcorrosionwill notoccur.Theunboiledwatermaybe drunk.		Work temperature medium	≤80℃	≤80℃
5.Thebottom adoptsflatbottom designsameas the waterpipe.Itis noteasytocause depositofsundriessothat thefluid isunobstructedandsmooth.	cutofforthrottle.It mayalso prevent unauthorized use.	Applicable	Water	Water

FDZ45X-16Q(Product Code:1204)main external size and connection size

DN	L	D1	H	po-u	Quantity (piece/case)	Remark
50	180	125	251	4-19	2
65	190	145	290	4-19	2
80	205	160	324	8-19	1
100	230	180	376	8-19	1
125	254	210	450	8-19	1
150	267	240	485	8-23	1
200	295	295	600	12-23	1
250	335	355	752	12-28	1
300	360	410	860	12-28	1

FDZ45X-10Q(Product Code:1206)main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	178	125	251	4-19	2	1.0MPa
65	190	145	290	4-19	2	1.0MPa
80	203	160	324	8-19	1	1.0MPa
100	229	180	376	8-19	1	1.0MPa
125	254	210	450	8-19	1	1.0MPa
150	267	240	485	8-23	1	1.0MPa
200	295	295	600	8-23	1	1.0MPa
250	335	350	752	12-23	1	1.0MPa
300	360	400	860	12-23	1	1.0MPa

Please note that the product specification or quotation with “”on the page is new.

Security flange elastic seat sealing gate valves (mechanical type)

Overall Dimension Drawing

1Valvebody	4 Valverod	7 Screw rod positioning nut	10Plug screw
2 Flashboard	5 Top cover sealing ring	8 Screwrod ring	11Key
3Flashboard nut	6topcover	9 Screwrod sealing ring

Features	Applications	TechnicalParameters
1.The flashboard is wrapped withrubber wholly:reliable sealing and long service life.	Mainlyusedfor tap waternetwork,water supply of living quarters orheating management, cutoff or throttle.lt may also prevent	Nominal pressure	1.0MPa	1.6MPa
2.Only use the especial configured key to open and close the valve,providing high anti-theft property.		Casing test	1.5MPa	2.4MPa
3.Thevalvebodyadoptsprecision casting.Theprecise size ensures the sealing performanceofthevalve.		Sealingtest garden greening to	1.1MPa	1.76MPa
4.The insidevalve ispained with non-poisonous epoxyresin.The inside and outside surfaceofthegatevalvesarewrappedwithrubberso thatthewatercorrosion/corro- sionwillnot occur.The unboiledwatermaybe drunk.		Work temperature	08	≤80℃
5.Thebottomadopts theflatbottom designsame as the waterpipe.It is noteasy to unauthorized use. causedepositofsundriesso thatthefluidisunobstructedandsmooth.		Applicable medium	Water	Water

FDZ45X-16Q Il(Product Code:1205) main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	180	125	276	4-19	2
65	190	145	308	4-19	2
80	205	160	350	8-19	1
100	230	180	398	8-19	1
125	254	210	471	8-19	1
150	267	240	513	8-23	1
200	295	295	623	12-23	1
250	335	355	780	12-28	1
300	360	410	890	12-28	1
350	381	470	1078	16-28	1
400	406	525	1200	16-31	1
450	432	585	1352	20-31	1
500	457	650	1458	20-34	1
600	508	770	1695	20-37	1

FDZ45X-10Q Il(Product Code:1207）main external size and connection size
Unit: mm

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	178	125	276	4-19	2	1.0MPa
65	190	145	308	4-19	2	1.0MPa
80	203	160	350	8-19	1	1.0MPa
100	229	180	398	8-19	1	1.0MPa
125	254	210	471	8-19	1	1.0MPa
150	267	240	513	8-23	1	1.0MPa
200	295	295	623	8-23	1	1.0MPa
250	335	350	780	12-23	1	1.0MPa
300	360	400	890	12-23	1	1.0MPa
350	381	460	1078	16-23	1	1.0MPa
400	406	515	1200	16-28	1	1.0MPa
450	432	565	1352	20-28	1	1.0MPa
500	457	620	1458	20-28	1	1.0MPa
600	508	725	1695	20-31	1	1.0MPa

Please note that the product specification or quotation with “”on the page is new.

Security soft sealing gate valves (megnetic lock type)

Features	Applications	TechnicalParameters
1. The flashboard is wrapped with rubber wholly; reliable sealing and long service life. 2.Theproductsmaybelocked atanyposition.Onlyuse theespecial		Nominal pressure	1.6MPa
configuredkeytoopenandclose thevalve,providingreliableanti-theft property. Mainlyused for tap water network,water		Casing test	2.4MPa
3.The valve bodyadopts precision casting.Theprecise sizeensures the sealingperformanceofthevalve. 4.The inside of the valve is painted with non-poisonous epoxyresin.The	supply of living quarters or heating manage- ment,gardengreeningtocutofforthrottle.It mayalsopreventunauthorizeduse.	Sealing test	1.76MPa
water and corrosion will not occur. The unboiled water may be drunk.		Work temperature	≤80℃
5.Thebottomadoptsflatbottomdesignsameas thewaterpipe.It isnot easy tocausedepositofsundriessothatthefluid isunobstructed and smooth.		Applicable medium	water

FDZ15X-16Q (Product Code:1201） main external size and connection size

DN	L	L1	D	H	Quantity (piece/case)	Remark
15	66	13	1/2"	95	32
20	70	13	3/4"	108	30
25	80	14	1"	118	24
32	92	17	11/4"	138	16
40	99	20	11/ 2"	194	15
50	112	20	2"	223	8

Security soft sealing gate valves (mechanical type)

Features	Applications	TechnicalParameters
1. The flashboard is wrapped with rubber wholly;reliable sealing and long servicelife.	Mainlyusedfortap water network, watersupplyoflivingquartersor heatingmanagement,gardengreening tocutofforthrottle.Itmayalsoprevent unauthorizeduse.	Nominal pressure	1.6MPa
2.Onlyusetheespecialconfiguredkeytoopenandclosethevalve providinghigh anti-theft property.		Casing test	2.4MPa
3.The valve body adopts precision casting.Theprecise size ensures the sealingperformanceofthevalve. 4.Theinsidevalve ispainedwith non-poisonousepoxyresin.The inside		Sealing test	1.76MPa
and outside surface of the gate valves are wrapped with rubber so that the watercorrosion/corrosionwillnotoccur.Theunboiled watermaybedrunk.		Work temperature	≤80℃
5.Thebottom adopts the flatbottom designsame as the waterpipe.It is noteasy tocausedepositofsundriesso thatthefluid isunobstructedand smooth.		Applicable medium	water

FDZ15X-16Q Il (Product Code:1203) main external size and connection size

DN	L	L1	D	H	Quantity (piece/case)	Remark
15	66	13	1/2"	114	32
20	70	13	3/4"	126	30
25	80	14	1"	137	24
32	92	17	11/4"	155	16
40	66	20	11/ 2"	191	15
50	112	20	2"	220	8

Key of security flange elastic seat sealing gate valves (megnetic lock type)

Name	Product code	Specification	Quantity (piece/case)	Remark
Keyofsecurityflange elasticseatsealinggatevalves(megnetic locktype) FDZ45X-16Q-50/65	1204K	50/65		DN5OshareswithDN65
Keyofsecurity flange elasticseatsealinggatevalves(megneticlocktype) FDZ45X-16Q-80/150	1204K	80/150	8	DN80.DN100.DN125 shares withDN 150
Keyofsecurityflangeelasticseatsealinggatevalves(megneticlocktype) FDZ45X-16Q-200/300	1204K	200/300	4	DN200,DN250 shares with DN 300
Keyofsecurityflange elasticseat sealing gate valves(megnetic lock type) FDZ45X-16Q-15/32	1201K	15/32	30	DN15,DN20,DN25 shareswithDN32
Keyof securityflange elasticseat sealing gate valves(megnetic lock type) FDZ15X-16Q-40/50	1201K	40/50	16	DN40shareswithDN50

9 Key of security flange elastic seat sealing gate valves (mechanical type)

Name	Product code	Specification	Quantity (piece/case)	Remark
Key of security flange elasticseatsealing gatevalves(megneticlock type) FDZ45X-16QII-50/150	1205K	50/150	8	DN50, DN65, DN80, DN100, DN125 shares with DN 150
Key of security flange elasticseatsealinggatevalves(megneticlock type) FDZ45X-16QII-200	1205K	200	8
SecurityFlanged RisingStemResilient-seated GateValve(mechanical type) KeyFDZ45X-16QI-250/300	1205K	250/300	1	DN250/300 Communal
KeyFDZ45X-16Q1-350/400	1205K	350/400	1	DN350/400 Communal
KeyFDZ45X-16QI-450/600	1205K	450/600	1	DN350/600 Communal
Key of security flange elastic seatsealing gate valves(megnetic lock type) FDZ15X-16QII-15/32	1203K	15/32	30	DN15, DN20, DN25 shares with DN 32
Key of security flange elastic seat sealing gate valves (megnetic lock type) FDZ15X-16QII-40/50	1203K	40/50	16	DN40 shares with DN 50
	Please note that the product specification or quotationwith on the page is new.

Elastic seat sealing gate valves with gatage (Non-rising stem

Features	Applications	TechnicalParameters
1.Thevalveiswrappedwithrubberwholly;reliablesealing andlongservicelife.	Widelyusedon thepipesoftapwater, wastewater,building.foodandother fluids toactastheadjustingand throttlingdevice.	Nominal pressure	1.0MPa	1.6MPa
2. Light weight, convenient installation;		Casing test	1.5MPa	2.4MPa
3.Valveseatwithflatbottom:thebottomadoptsvalveseat design with flat bottom same as the water pipe.This will not produce deposit of sundries and the sealing isreliable.		Sealing test	1.1MPa	1.76MPa
4.Corrosionresistance;Theinnercavity adoptsnon-poison-		Work temperature	≤80℃	≤80℃
waterbutalsoforwastewatersystem.		Applicable medium	Water	Water

BZ45X-16Q (Product Code:1021） main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	180	125	340	4-19	2
65	190	145	370	4-19	2
80	205	160	410	8-19	1
100	230	180	450	8-19	1
125	255	210	480	8-19	1
150	267	240	550	8-23	1
200	295	295	630	12-23	1
250	335	355	750	12-28	1
300	360	410	820	12-28	1

Elastic seat sealing gate valves with gatage (Non-rising stem)

Unit: mm

BZ45X-16Q Il(Product Code:1022)main external size and connection size

DN	L	D1	H	po-u	Quantity (piece/case)	Remark
50	180	125	340	4-19	2
65	190	145	370	4-19	2
80	205	160	410	8-19	1
100	230	180	450	8-19	1
125	255	210	480	8-19	1
150	267	240	550	8-23	1
200	295	295	630	12-23	1
250	335	355	750	12-28	1
300	360	410	820	12-28	1

BZ45X-10Q (Product Code:1023) main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	178	125	340	4-19	2	1.0MPa
65	190	145	370	4-19	2	1.0MPa
80	203	160	410	8-19	1	1.0MPa
100	229	180	450	8-19	1	1.0MPa
125	254	210	480	8-19	1	1.0MPa
150	267	240	550	8-23	1	1.0MPa
200	295	295	630	8-23	1	1.0MPa
250	335	350	750	12-23	1	1.0MPa
300	360	410	820	12-23	1	1.0MPa

BZ45X-10QIl (Product Code:1024) main external size and connection size

DN	L	D1	H	pO-u	Quantity (piece/case)	Remark
50	178	125	340	4-19	2	1.0MPa
65	190	145	370	4-19	2	1.0MPa
80	203	160	410	8-19	1	1.0MPa
100	229	180	450	8-19	1	1.0MPa
125	254	210	480	8-19	1	1.0MPa
150	267	240	550	8-23	1	1.0MPa
200	295	295	630	8-23	1	1.0MPa
250	335	350	750	12-23	1	1.0MPa
300	360	400	820	12-23	1	1.0MPa

9 Hard sealing gate valves with gatage (Non-rising stem)

Features	Applications	TechnicalParameters
1.The passage is smooth withsmall fluidresistance;the sealing surface islesswashedand corrodedby the medium.	Widelyusedonthepipesoftap water,foodandotherfluidstoactas theadjustingand throttlingdevice.	Nominal pressure	1.0MPa	1.6MPa
2.Themedium flowdirectionisnot limited;withoutinterference to the fluid and pressure drop.		Casing test	1.5MPa	2.4MPa
3.Simple shape,short structural length.Goodrigidity ofthevalve，		Sealingtest	1.1MPa	1.76MPa
savingforcetoopenandclose.		Work temperature	≤80℃	≤80℃
4.The sealing surface adopts copper alloy,long service life.	Applicable medium	Water		Water

BZ45T-16Q (Product Code:1041）main external size and connection size
Unit: mm

DN	L	D1	H	D	pO-u	Quantity (piece/case)	Remark
50	178	125	270	165	4-19	2
65	190	145	273	185	4-19	2
80	203	160	308	200	8-19	1
100	229	180	333	220	8-19	1
125	254	210	384	250	8-19	1
150	267	240	436	285	8-23	1
200	292	295	542	340	12-23	1

BZ45T-10Q (Product Code:1042)main external size and connection size
Unit: mm

DN	L	D1	H	D	po-u	Quantity (piece/case)	Remark
50	178	125	270	165	4-19	2	1.0MPa
65	190	145	273	185	4-19	2	1.0MPa
80	203	160	308	200	8-19	1	1.0MPa
100	229	180	333	220	8-19	1	1.0MPa
125	254	210	384	250	8-19	1	1.0MPa
150	267	240	436	285	8-23	1	1.0MPa
200	292	295	542	340	12-23	1	1.0MPa

Please note that the product specification or quotation with "on the page is new.

Groove elastic seat sealing gate valves with gatage (Non-rising stem)

Features	Applications	TechnicalParameters
1.Flexible opening and closing,saving force,convenient and quickinstallation.	Applicable towatersupplyand drainage,fire fighting, gas and other fluids and other pipes to actas adjustingand throttling device.	Nominal pressure	1.6MPa
		Casing test	2.4MPa
		Sealingtest	1.76MPa
2.Abletoovercomethedeviationproduceddue tonon-axial connectionwith thepipeswithincertainscopetosolvethe materialstressduetoexpansionandcontractionofthepipes.	Work temperature		≤80℃
	Applicable medium	Water

BZ85X-16Q(Product Code:1091）main external size and connection size

DN	L	A	B	C	D	H	Quantity (piece/case)	Remark
50	140	14.5	9.5	2.2	60	263	4
65	160	14.5	9.5	2.2	76	287	4
80	170	14.5	9.5	2.2	89	322	2
100	180	16	9.5	2.2	114	348	1
125	200	16	9.5	2.2	140	417	1
150	230	16	9.5	2.2	165	467	1
200	243	19	13	2.5	219	589	1

Flange worm gear gate valves

Features	Applications	TechnicalParameters
1.The gate valves adopt highest quality ductile iron.Accurate geometric size,goodlowpressuresealingperformance,thereplaceablesealing parts,sealing materials resistant to aging.	Widelyused inwatersupplyanddrainage system,sewage treat -ment system, municipal construction and mining,metal- lurgy,powerplants,chemicalengineer- ing,food,medicine and light textile，and otherindustries.	Nominal pressure	1.0MPa
2. The whole flashboard is wrapped with glue; valve seat with flat bottom, reliable sealing, not production of deposit of sundries,excellent anti-rust property,long service life.		Casing test	1.5MPa
3.Added with spiralbevelgearforcesavingmechanism,convenient to open and close,saving force, small fluid resistance,convenient operation;		Sealingtest	1.1MPa
one person can open and close it easily.		Work temperature	≤80℃
4. May deliver mud, minimum deposit of liquid at the pipe opening		Applicable medium	Water

Z345X-10Q (Product Code:1302） main external size and connection size

DN	L	OD	H	0D1	po-u	Quantity (piece/case)	Remark
700	610	895	2100	840	24-31	1	1.0MPa
800	660	1015	2280	950	24-34	1	1.0MPa
900	711	1115	2700	1050	28-34	1	1.0MPa
1000	811	1230	2845	1160	28-37	1	1.0MPa

) Considerations for operation and use of gate valve series products:

1、Operationmethod	2.Storage,maintenance,installationanduse
Hand is used to rotate the hand-wheel ofthemanualvalvetomakethevalve rod toascend ordescendsoas todrive the flashboard tomove upwards and downwards to open and close the valve. The flash board descends with clock- wiserotation toclosethevalve.The flash board ascends with anti-clockwise rotation to open the valve.	1. The valves should be stored in dry and ventilated room; two ends of the valve passage should be blocked.
	prevent damage of the sealing surface.
	3.Check the valve markcarefullybefore installation and seewhetherit complies with the userequirements.
	4. Check the valve cavity and sealing surface before installation. If there is some dirt, please use cleaning cloth to wipe.
	5.Checkwhether thefiller ispressed tightlybefore installation.Ensure thesealingperformance of the filler and it should nothinderrotationof thevalverod at thesame time.
	6.When the pipeline pressure is calculated for the system after installation, the valve should be at the full opening position.

8. During use, the trapezoidal thread of the valve rod should be injected with lubricating agents.
	9. For manual valve, at the time of opening and closing the valve, hand wheel should be used to open and close. No auxiliary levers or other tools are used.
	10.The valves should be inspected regularly after use.Check whether the sealing surface,valve rod is worn and the washers and fillers. If it is failed due to wearing, timely repair and replacement should be made.

3. Possible failures, reasons and troubleshooting

PossibleFailures	ReasonsofFailures	Troubleshooting
Leakage of the gland	1. The gland is not pressed tightly.	1. Tighten the nuts evenly to press the gland tightly.
Leakage of the gland	2.Thesealingringbecomesfailed due to long-term use or improper storage.	2. Replace the sealing ring.
Leakage among thesealing surfaces	1.The sealing surface is adhered with dirt and sundries.	1. Remove the dirt and impurities.
Leakage among thesealing surfaces	2. The sealing surface is damaged.	2. Make machining again for repair or replace.
Leakageattheconnectionbetween thevalvebodyandvalvecover	1.The connecting bolts are not tightened evenly.	1. Tighten evenly.
	2. The flange sealing surface is damaged.	2. Make machining again for repair.
	3. The O-ring bursts or becomes failed.	3.Replace with new O-ring.
Thehandwheelisnotflexibleforrotation ortheflashboardcannotopenorclose	1. The fller is pressed too tightly.	1. Loosen the nuts on the pressing plate of the filler properly.
		2.Calibrate the pressing plate of the filler.
	3. The valve rod nuts are damaged.	3.Replace the valve rod nuts.
	4.The threadofvalverodnuts areworn seriously or broken.	4.Dismantle to repair the thread and remove dirt and sundries.
	5. The valve rod is bent.	5.Correct the valve rod.

Overview of butterfly valves series products:

The butterfly valves series products mainly include worm gear butterfly valves, signal butterfly valves, wafer type worm gear transmission butterfly valves, flange double eccentric worm gear butterfly valves, wafer type manual butterfly valves and products of other specification and are widely used in water supply and drainage, building, air conditioner, wastewater, chemical engineering, food,medicines and light textile,etc.

7 Internal structure of butterfly valves

Materials of min parts and components of butterflyvalves

ProductName	NameofProductParts	Materials
Wormgear butterflyvalves series	Valvebody	QT450-10
	Valverod	2Cr13
	Butterflyplate	QT450-1
	Sealing ring	Nitrile rubber
Manual butterfly valvesseries	Valvebody	QT450-10
	Valverod	2Cr13
	Butterfly plate	QT450-1
	Sealing ring	Nitrilerubber

The adopted standards of butterfly series products

Series	Standard
Wormgear butterflyvalves series	DesignandmanufacturingstandardGB/T12238
	Designandmanufacturing standardGB/T12238
	Flangeconnection sizeGB/T 17241.6
	Pressure teststandardGB/T13927
Manual butterfly valvesseries	Design andmanufacturing standard GB/T 12238
	StructurallengthstandardGB/T12221
	Flange connection size GB/T 17241.6
	PressureteststandardGB/T13927

Flange worm gear butterfly valves

Features	Applications	TechnicalParameters
1.Unique structure,goodlowpressuresealingperformance.	Widelyusedonwatersupply pipesof food,medicine,chemical engin-eering,food and light textile,etctoadjusttheflowrate andthrottlethemedium.	Nominal pressure	1.6MPa	1.0MPa
2.Quick and convenient toopenand close,savingforce,smallfluid resistance,convenientoperation.		Casing test	2.4MPa	1.5MPa
3.Installed at any position, convenient for repair.		Sealingtest	1.76MPa	1.1MPa
4.Replaceable sealingparts,reliable sealing performance.The sealingmaterialsareresistanttoagingandcorrosionwithlong servicelife.		Work temperature	≤80℃	≤80℃
5. May deliver mud, minimum deposit of liquid at the pipe opening.	Applicable medium	water		water

DN	L	D	H	D1	pO-u	Quantity (piece/case)	Remark
50	115	160	155	125	4-19	4
65	119	178	169	145	4-19	4
80	124	193	172	160	8-19	2
100	133	214	194	180	8-19	2
125	149	244	206	210	8-19	2
150	150	278	224	240	8-23	1

D341X-10Q (Product Code:2042)main external size and connection size

DN	L	D	H	D1	po-u	Quantity (piece/case)	Remark
50	108	165	155	125	4-19	4	1.0MPa
65	112	185	169	145	4-19	4	1.0MPa
80	114	200	182	160	8-19	2	1.0MPa
100	127	220	194	180	8-19	2	1.0MPa
125	138	250	206	210	8-19	2	1.0MPa
150	140	285	224	240	8-23	1	1.0MPa
200	161	340	258	295	8-23	1	1.0MPa
250	178	395	301	350	12-23	1	1.0MPa
300	189	445	351	400	12-23	1	1.0MPa
350	197	505	392	460	16-23	1	1.0MPa
400	223	565	425	515	16-28	1	1.0MPa

Please note that the product specification or quotation with on the page is new.

Flange double eccentric worm gear butterfly valves

Features	Applications	TechnicalParameters
Itsstructuralfeatureis:atthevalverodcenter,itisdeviationfromthe valveplatecenterbutalso thebodycenter.Theeffectofdoubleeccen- tricity enables thebutterflyplatecanseparatefrom thevalveseatquickly afterthevalve isopened.Thisreduces the unnecessaryexcessive squeezingbetweenthevalveplate andvalveseat,scratching,lessen the	Applicabletowatersupplyand drainagepipesof food,medi- cine,electricpower andpaper making toadjust theflowrate used in water supply and drainage,buildings,air condi- tioning,wastewater,chemical engineering,food,medicine and light textile,etc.	Nominal pressure	1.0MPa	1.6MPa
openingresistance,lowers the wear,extend service life of thevalve.The significantreductionofscratchingenables thedoubleeccentricitybutterfly valvetoadoptmetalvalveseat,whichwidens theapplicationofbutterfly in high temperature field. and throttle medium.Widely		Casing test	1.5MPa	2.4MPa
1.Reasonabledesign,compactstructure,convenientand quick to open,		Sealing test	1.1MPa	1.76MPa
saving force and nimble, small fluid resistance, convenient operation 2.Uniquestructure,good lowpressure sealingperformance		Work temperature	≤80℃	≤80℃
3.The adoption of doubleeccentricityreduces the friction of sealingring andextendsservicelifeofthevalve		Applicable medium	water	water

D342X-16Q(Product Code:2061）main external size and connection size

DN	L	D	H	D1	po-u	Quantity (piece/case)	Remark
100	127	220	387	180	8-19	2
125	140	250	427	210	8-19	2
150	140	285	466	240	8-23	1
200	152	340	558	295	12-23	1
250	165	405	650	355	12-28	1
300	178	460	708	410	12-28	1
350	190	520	776	470	16-28	1
400	216	580	863	525	16-31	1
450	222	640	926	585	20-31	1
500	229	715	1085	650	20-34	1
600	267	840	1187	770	20-37	1

D342X-10Q (Product Code:2063） main external size and connection size

DN	L	D	H	D1	po-u	Quantity (piece/case)	Remark
100	127	220	387	180	8-19	2	1.0MPa
125	140	250	427	210	8-19	2	1.0MPa
150	140	285	466	240	8-23	1	1.0MPa
200	152	340	558	295	8-23	1	1.0MPa
250	165	395	650	350	12-23	1	1.0MPa
300	178	445	708	400	12-23	1	1.0MPa
350	190	505	776	460	16-23	1	1.0MPa
400	216	565	863	515	16-28	1	1.0MPa
450	222	615	926	565	20-28	1	1.0MPa
500	229	670	1085	620	20-28	1	1.0MPa
600	267	780	1187	725	20-31	1	1.0MPa
700	306	895	1310	840	24-31	1	1.0MPa
800	320	1015	1460	950	24-34	1	1.0MPa
900	325	1115	1560	1050	28-34	1	1.0MPa
1000	400	1230	1690	1160	28-37	1	1.0MPa
1200	470	1455	1935	1380	32-40	1	1.0MPa

Please note that the product specification or quotation with “●” on the page is new.

⊚ Flange worm gear butterfly valves (large caliber)

Features	Applications	TechnicalParameters
1.Reasonable design,compact structure,convenientoperation,saving force and flexible.	Widely used on the water supply and drain- age pipes of food,medicine,chemical engineering,light textile and paper making and other Industries to adjust flowrate and throttle the medium.	Nominal pressure	1.0MPa
2.Wearresistant,longservicelife,reliable sealing andeasy adjustment		Casing test	1.5MPa
3.Installed at any position,convenient repair. 4.Quickto openand close，savingforce,smallfluidresistance.		Sealingtest	1.1MPa
5.Uniquestructure,goodlowpressuresealingperformance.		Work
6.Replaceablesealingparts,sealingmaterialsresistanttoaging		temperature	≤80℃
7.Goodadjusting,throttlingandcheckperformance.		Applicable medium	Water

D341X-10Q (Product Code:2042)main external size and connection size
Unit: mm

DN	L	D	H	D1	pO-u	Quantity (piece/case)	Remark
500	229	670	1070	620	20-28	1	1.0MPa
600	267	780	1205	725	20-31	1	1.0MPa
700	306	895	1310	840	24-31	1	1.0MPa
800	320	1015	1460	950	24-34	1	1.0MPa
006	325	1115	1560	1050	28-34	1	1.0MPa
1000	400	1230	1690	1160	28-37	1	1.0MPa
1200	470	1455	1935	1380	32-40	1	1.0MPa

Please note that the product specification or quotation with on the page is new.

Signal butterfly valves

Features	Applications	TechnicalParameters
1.The central butterflyvalveplateis adopted.Theshaftend issetwith cam mechanism to contact the opening and closing signal,which can improve the opening and closing signalofthevalveeffectively.It can output toconnect theacoustoopticalequipment toprovide acoustooptical	Used in the firefighting systemas control valves.Alsowidelyusedforwatersupplyand drainage,building,air conditioning,wastewa- ter,chemical engineering,food,medicine and light textile,etc.	Nominal pressure	1.6MPa
2.Convenient and quick opening and closing, saving force,small fluid force,convenientoperation.		Casing test	2.4MPa
		Sealingtest	1.76MPa
3.Uniquestructure,good sealingperformance.		Work temperature	≤80℃
3.Uniquestructure,good sealingperformance.	Applicable medium	Water

XD371X-16Q(Product Code:2052) mainexternalsize and connectionsize

DN	L	D1	A	B	H	HO	pO-u	Quantity (piece/case)	Remark
65	45	136	121	170	80	380	4-21	3
80	46	160	130	170	90	395	8-20	3
100	52	185	132	175	110	430	4-23	2
125	54	215	118	175	125	460	4-24	2
200	60	295	141	275	175	575	4-25	2

⊚ Wafer type worm gear transmission butterfly valves

Features	Applications	TechnicalParameters
1.Convenient and quick opening and closing,saving force,flexile，small fluid resistance,installed at any position,convenient operation and main- tenance.	Applicabletowatersupply anddrainage pipes of food,medicine,and light textile papermakingtoadjusttheflowrateand throttle the medium.	Nominal pressure	1.6MPa
2. Unique structure, small volume, light weight, good low pressure sealing performance.		Casing test	2.4MPa
3.Replaceable sealing parts,sealingmaterials resistant to aging,weak- corrosion;longservicelife.		Sealing test	1.76MPa
4. May deliver mud, minimum deposit of liquid at the pipe.		Work temperature	0.08
5.Good adjusting,throttling and checkperformance.	Applicable medium		Water

D371X-16Q (Product Code:2022) main external size and connection size

DN	L	D1	A	B	H	HO	po-u	Quantity (piece/case)	Remark
50	43	120	146	155	70	350	4-23	5
65	45	136	140	155	80	355	4-26.5	4
80	46	160	134	155	90	380	8-18	3
100	52	185	142	155	110	420	4-23	2
125	54	215	138	155	125	430	4-24	2
150	56	238	152	155	140	460	4-25	2
200	60	295	196	275	175	620	4-25	2
250	68	350	231	275	200	675	4-30	2
300	78	400	256	275	250	760	4-30	1

Wafer type manual butterfly valves

Features	Applications	TechnicalParameters
Theopen-closepartofbutterflyvalvesisadisc-shapedplateand rotatesaround itsaxisinsidethevalvebodytoperformopen/close oradjustment.Theadoptionofscaleindicationdialnotonlyenables thebutterflyplatetohaveself-lockingabilitytomakethebutterfly mance of the valve.	Widely used in the fluid pipes of water supply and drainage,build- ings,waste -water,chemical and throttling devices.	Nominal pressure	1.6MPa
		Casing test	2.4MPa
engineering,food,medicine and 1.Convenient and quick opening and closing,saving force,small light textile,etc toact asadjusting		Sealing test	1.76MPa
		Work temperature	≤80℃
fluidresistance,convenientoperation; 2.Simplestructure,good lowpressuresealingperformance.		Applicable medium	Water

D71X-16Q (Product Code:2013)main external size and connection size
Unit: mm

DN	L	D1	A	HO	pO-u	Quantity (piece/case)	Remark
50	41	125	253	238	4-20	8
65	44	145	253	253	4-20	9
80	44	160	253	287	4-20	6
100	50	180	253	302	4-20	4
125	54.5	210	253	347	4-20	3
150	53.5	240	283	388	4-23	2
200	60	295	373	456	4-23	2

D71X-16Qll (Product Code:2014）main external size and connection size

DN	L	D1	A	HO	pO-u	Quantity (piece/case)	Remark
50	43	120	236	265	4-23	8
65	45	136	230	280	4-21	9
80	46	160	234	300	8-20	6
100	52	185	253	335	4-23	4
125	54	215	263	365	4-24	3
150	56	238	257	395	4-25	2
200	60	295	356	470	4-25	2

Trench type worm gear transmission butterfly valves

Features	Applications	TechnicalParameters
1.Easydisassemblyand maintenance,andcanbeinstalled atanyposition.	It iswidelyusedinwatersupplyanddrainage pipenetwork.Itcanbeusedasakindof pipelineregulationandclosure inwater treat- ment such as petrochemical industry, construction,energy,fire control,tap water, seawaterandsewage.	Nominal pressure	1.6MPa
2. Simple and compact structure and fast 9o°rotary opening and closing.		Casing test	2.4MPa
3.Small operating torque and flexible operation,as well as labor-saving and light.		Sealing test	1.76MPa
4.The flow characteristics tend to be linear,with good regulation perfor- mance,small flowresistance coefficient,large flowcapacity，energy conservationandenvironmentalprotection.		Work temperature	0.08
5.Thenumberofopeningand closingtestsisup to tensof thousandswith longservicelife.		Applicable medium	Water

D381X-16Q (Product Code:2141）main external size and connection size

DN	D	C	L	L1	L2	H	Quantity (piece/case)	Remark
80	88.9	84.94	97	15.88	7.93	236	1
100	114.3	110.8	116	15.88	9.53	274	1
150	165.1	160.9	148	15.88	9.53	329	1

Please note that the product specification or quotation with on the page is new.

Trench type manual butterfly valves

Features	Applications	TechnicalParameters
1.Easydisassembly and maintenance,and canbeinstalled atanyposition	Itiswidelyused inwatersupplyanddrainage pipenetwork.It canbeusedasakind of pipelineregulationand closure inwater treat- ment such as petrochemical industry， construction,energy,fire control,tap water, seawaterandsewage.	Nominal pressure	1.6MPa
2.Simple and compact structure and fast 9o°rotary opening and closing		Casing test	2.4MPa
3.Small operating torque and flexible operation,as well as labor-saving and light.		Sealing test	1.76MPa
4.Theflow characteristics tend tobe linear,withgoodregulationperfor- mance,smallflow resistance coefficient,large flow capacity,energy conservationand environmentalprotection.		Work temperature	≤80℃
5.The number of opening and closing tests is up to tens of thousands with long service life.		Applicable medium	Water

D81X-16Q (Product Code:2142)main external size and connection size

DN	D	C	L	L1	L2	H	Quantity (piece/case)	Remark
80	88.9	84.94	97	15.88	7.93	213	1
100	114.3	110.8	116	15.88	9.53	251	1
150	165.1	160.9	148	15.88	9.53	306	1

Please note that the product specification orquotation with on the page is new

⊚ Trench type signal butterfly valves

Features	Applications	TechnicalParameters
1.Easy disassemblyandmaintenance,and canbe installed at any position.	It iswidelyused inwater supplyand drainage pipenetwork.Itcanbeusedasakindof pipelineregulationandclosure inwater treat- ment suchas petrochemical industry, construction,energy,fire control,tap water, seawaterandsewage.	Nominal pressure	1.6MPa
2.Simple and compact structure and fast 90°rotary opening and closing.		Casing test	2.4MPa
3.Smalloperating torque and flexible operation,aswellas labor-savingandlight.		Sealingtest	1.76MPa
4.The flowcharacteristics tend tobelinear,withgoodregula- tionperformance，smallflowresistancecoefficient,largeflow		Work temperature	≤80℃
5.The number of opening and closing tests is up to tens of thousandswithlongservicelife.		Applicable medium	Water

Unit: mm

XD381X-16Q (Product Code:2143）main external size and connection size

DN	D	C	L	L1	L2	H	Quantity (piece/case)	Remark
80	88.9	84.94	97	15.88	7.93	247	1
100	114.3	110.8	116	15.88	9.53	299	1
150	165.1	160.9	148	15.88	9.53	350	1

Please note that the product specification or quotation with on the page is new.

Considerations for operation and use of butterfly valve series products:

1.Operationmethod	2.Storage,maintenance,installationanduse
1.Thehandmanualvalvesadoptworm gear transmission devices to make the butterflyplaterotate90degreesand openorclosethevalves.	1. The valves should be stored in dry and ventilated room; two ends of the valve passage should be blocked.
	2.Thevalvesforlong-term storageshould be inspectedregularly toremove the dirt.Pay special attention to cleanliness of the sealing surface and prevent damage of the sealing surface.

	4.Check the valve passage and sealing surface before installation.If there is some dirt,please use cleaning cloth to wipe.
	5.Check whether the filler is pressed tightly before installation. Ensure the sealing performance of the filler and it should not hinder rotation of the valve rod at the same time.
2. For manual (including hand wheel of the driving devices)orbutterflyvalves driven by spanner, unless otherwise specified in the order contract,when facing the hand wheel or spanner, clock- wiserotationofthehandwheelor the spannervalve is toclose.	should be even and proper.
	7. Butterfly valves may be installed on horizontal or vertical pipes. The medium flow direction may not be considered.
	8.For manual valve, at the time of opening and closing the valve,hand wheel should be used to open and close. No auxiliaryleversorothertoolsareused.
	9.Thevalves should beinspectedregularly after use.Checkwhether thesealing surface is worn and the washers and fillers.If it is failed due towearing,timely repair and replacement should bemade.

3. Possible failures, reasons and troubleshooting

Possiblefailures	Reasonsoffailures	Troubleshooting
Leakage	1. Incorrect installation	1. Adjust the butterfly valves to make the pipe edge center at two sides aligned.
	1. Incorrect installation	2.Tighten the connecting bolts with even and proper tightening force.
	2. Closing is not in place	1. Check whether the opening indication is in place.
		2.Make adjustment of the actuator according to the instructions so that the indication is synchronous with the opening state.
		3.Checkwhether something isclogged inside the pipes.
The driving mechanism failed	3. Valve parts damaged Valve seat damagedButterflyplate damaged	1.Replace thevalveseat. 2.Replace thebutterflyplate
	1. The connecting key is damaged and falls off.	1.Replace thekey
	2. The pin is cut off.	2.Replace the pins

Overviewofrepairingtoolseriesproducts:

The repairing tool series products mainly include steel pipe repair coupling, quick repair coupling, wrapped head repair coupling, straightedgeopeningrepairingtoolsforPEandPvCpipes andproductsofmanyotherspecificationand aremainlyusedfor maintenance and repair of pipe fracture and pipe breakage. There is no need to stop water when installing the repairing tool at the fracture to achieve the purpose of quick leaking stoppage.

nternal structure of the repairing tools

See thefollowing tablefor materials of mainparts and components of therepairing toolsseriesproducts:

ProductName	NameofMainParts	Materials
Quickrepairingtools	Valvebody	QT450-10
Quickrepairingtools	Sealing ring	Nitrile rubber
Quickrepairing tools	Valvebody	QT450-10
	Nuts	QT450-10
	Sealing ring	Nitrile rubber

Standards:

Design and manufacturing standards GB13294

PressureteststandardGB/T13927

⊚ Steel pipe repair coupling

Features	Applications	TechnicalParameters
1.Lightweight,convenient and quick installation. 2.Installationmaybeperformedwithoutstopping themediumdelivered inside the pipe.	Widelyusedformaintenanceandrepair ofpipefractureandpipeburst.Atthe conditionwhere there is noneed tostop the delivered medium inside the pipes, install the repairing toolswith the broken pipes to achieve the purpose ofquick	Nominal pressure	1.6MPa
		Casing test	2.4MPa
3.The sealingring adoptsnitrile rubber withgood abrasiveresistance leaking stoppage. and heatresistance and strong adhesive strength,providing reliable sealingperformance.		Sealing test	1.76MPa
		Work temperature	0.08
		Applicable medium	water

Unit: mm

QX02 (Product Code:6021）main external size and connection size

DN	L	Quantity (piece/case)	Remark
50	215	9
65	232	4
80	262	3
100	282	2
150	283	2
200	325	1
250	323	1
300	390	1

Quick Repairing Tools

Features	Applications	TechnicalParameters
1.The product has simple structure,strong adaptability,and strong anti-corrosionperformance.Safe,quickandconvenient.	Applicabletoconnection ofgalvanizedpipe and	Nominal diameter	15-100 DN(mm)
		Normal pressure	1.6PN(MPa)
casting iron pipes 2.Adopt high strength ductile iron casing,nitrile rubber sealing ring, featuring abrasionresistance,noteasilydamaged andreliablesealing.		Test pressure (sealing/strength)	1.76MPa/2.4MPa
		Applicable temperature	≤80℃
		Applicable medium	Clearwaterorwaste waterwithout impurity

Unit: mm

QX03(Product Code:6011) main external size and connection size

DN	L	Quantity (piece/case)	Remark
15	90	52
20	98	40
25	110	32
32	118	24
40	128	18
50	140	14
65	150	8
80	180	9
100	210	4

⊚ Wrapped head repairing tools

Features	Applications	TechnicalParameters
1. The sealing ring adopts nitrile rubber with good abrasive resistance and heat resistance and strong adhesive strength,providing reliable sealingperformance.	1. Mainly used for quick repair of pipe crack, leaking holes on the pipes and otherfailures.Widelyusedforquick repairofbreakage,leakage andother failures of PE and PVCpipes.Appli-	Nominal pressure	1.6MPa
cablepipe scope:PEpipes and PVC pipes. 2.Simple installation:dismantle the plug first.Put the sealing ring into the body. Then use the valve body to wrap the burst and leakage place of		Casing test	2.4MPa
	2.The ductile ironmanualbutterfly valveissuitableforseamlesssteel pipes, spiral pipes, and steel pipes, as	Sealingtest	1.76MPa
		Work temperature	≤80℃
the bell and spigot connector. Screw in the bolt and use a spanner to tighten the bolt until only water flows out from the plug.Then install the plug wrapped with sealing tape on the plug opening. There is no need to stop water during the whole process.	wellasself-stressed cementpipes withintheallowablesize.Themedium is water.	Applicable medium	Water

Unit: mm

QX05(Product Code:6031）main external size and connection size

DN	L	H	Quantity (piece/case)	Remark
50	360	190	4
65	380	210	4
80	400	226	2
100	412	256	2
150	425	322	1
200	474	370	1
250	478	425	1
300	516	460	1

PE and PVC pipe repair coupling

Features	Applications	TechnicalParameters
1. The sealingring adopts nitrile rubberwithgoodabrasiveresistance and heat resistance and strong adhesive strength,providing reliable sealingperformance.	1.Mainlyused forquickrepairforpipe crack,leakofpipesandotherfailures. Widelyusedforquickrepairofbreakage	Nominal pressure	1.6MPa
2. Light weight and simple installation: dismantle the plug first. Put the sealing ring into thevalvebody with the sealing ring aligning with the seal groove of thevalvebody.Thenuse thevalvebody towrap theburstand leakageplaceofthePEandPvCpipes.Screwintheboltandusea andleakageofPEandPvCplastic spanner to tighten the bolt until only water flows out from the plug. Then pipes.Thepipe applicable scope:PE install the plug wrapped with sealing tape on the plug opening.There is		Casing test	2.4MPa
		Sealingtest	1.76MPa
pipes and PVC pipes. noneed tostopwaterduring thewholeprocess. 3.Thereis noneed tostop the delivered medium inside during therepair		Work temperature	≤80℃
		Applicable medium	Water

QX04 (Product Code:6041）main external size and connection size

DN	L	H	Quantity (piece/case)	Remark
50	180	92	9
63	195	105	4
75	205	125	4
90	220	143	4
110	240	159	2
125	255	174	2
140	270	190	2
160	290	206	2
180	310	229	1
200	320	249	1
225	340	275	1
250	355	301	1
280	370	330	1
315	385	370	1

Considerations for use and operation of repairing tool series products:

1.Operationmethod	2.Storage,maintenance,installationanduse
The installation ofrepairing tool isvery simple. Dismantle the plug first. Put the sealing ring into the valve body with the sealing ring aligning with the seal groove of the valve body. Then install the valve body at the place ofbreakage and leakage.Screw in the bolts and use a spanner to tighten the bolt until only water flows out from the plug.Then install theplugwrappedwithsealing tape on the plug opening. There is no need to stop water during the whole process.	1. Store in dry and ventilated room; two ends of the valve passage should be blocked.
	and damage of the sealing surface.
	3.Check thevalve markcarefully before installation and see whether it complieswith the userequirements.
	4. Check the sealing surface and sealing groove of the valve body before installation. If there is some dirt, use clean cloth to clean.
	bodies. Otherwise,its sealing property will be affected. Therefore,the foreign bodies must be cleaned. Check whether
	need to stop water during the installation process. and sealing ring. If it is damaged and failed, repair or replacement should be made in time.

3. Possible failures, reasons and troubleshooting

PossibleFailure	ReasonsofFailure	Troubleshooting
Plugleakage	1. The plug is not wrapped with sealing tape.	1.Wrapsufficient sealing tape again.
Plugleakage	2.The thread of thevalvebody and plug is damag	2.Repairthethreadorreplace.
Leakageofthesealingsurface	1.The sealing surface is adheredwith dirt.	1.Clean the dirt and sundries.
	2. The sealing surface is damaged.	2. Make machining again,repair or replacement.
	3.Theboltsarenot tightened	3.Tightened theboltsevenly.

Straight Pipe Repair Clamp (For Steel Pipe)

Features	Applications	TechnicalParameters
1. Lightweight, and easy to install. of the medium in the pipeline.	Itcanbewidelyusedforthemainte- nance and urgentrepair ofpipeline fractures orbursts.The repair clamp isinstalled in thefracturedpartwhen there isno supply interruptionof the medium in the pipeline for immedi-	Nominal pressure	1.6MPa
		Casing test	2.4MPa
2.Therepairclampcanbeinstalledwhen thereisnosupplyinterruption ately plugging the leakage. It is also suitableforurgentrepairofstraight pipe parts in plastic pipes such as PE, PVC and PP-R.		Sealing test	1.76MPa
		Work temperature	≤80℃
3.The sealring is made of NBR with good abrasion resistance,heat resistance,and strongbonding strength,offering safe andreliable sealing performance.		Applicable medium	Water

D Series (Product Code: 6061) Main Overall Dimensions and Connecting Dimensions

Model	DN	L	Remarks
D50×200	50	200
D50x300	50	300
D50×500	50	500
D65×200	65	200
D65x300	65	300
D65x500	65	500
D80×200	80	200
D80x300	80	300
D80x500	80	500
D100×200	100	200
D100×300	100	300
D100×500	100	500

D Series (Product Code:6061) Main Overall Dimensions and Connecting Dimensions

Model	DN	L	Remarks
D125×200	125	200
D150x200	150	200
D150×300	150	300
D150×500	150	500
D200×200	200	200
D200×300	200	300
D200×500	200	500
D250×200	250	200
D250x300	250	300
D250x500	250	500
D300×200	300	200
D300x300	300	300
D300×500	300	500

Straight Pipe Repair Clamp (For Plastic Pipe)

Features	Applications	TechnicalParameters
1. Lightweight, and easy to install. of themediumin thepipeline.	Itcanbewidelyused for themainte- nanceandurgentrepairofpipeline fracturesorbursts.Therepairclampis installed inthefracturedpartwhen there is no supply interruption of the medium	Nominal pressure	1.6MPa
		Casing test	2.4MPa
2.Therepairclampcanbeinstalledwhenthereisnosupplyinterruption in the pipeline forimmediately plugging theleakage.Itisalsosuitableforurgent repair ofstraightpipe partsinplastic pipes such as PE, PVC and PP-R.		Sealing test Work	1.76MPa
		temperature Applicable	0.08
3.The sealring is made ofNBR withgood abrasionresistance,heat resistance,and strongbonding strength,offering safeandreliablesealing performance.		medium	Water

Unit: mm

P Series (Product Code:6062) Main OverallDimensions and Connecting Dimensions

Model	DN	L	Remarks
P50×200	50	200
P50×300	50	300
P63×200	63	200
P63×300	63	300
P63×500	63	500
P75×200	75	200
P75×300	75	300
P75×500	75	500
P90×200	90	200
P90×300	90	300
P90×500	90	500
P110×200	110	200
P110×300	110	300
P110×500	110	500
P125×200	125	200
P125×300	125	300
P125×500	125	500
P160×200	160	200
P160×300	160	300
P160×500	160
P200×200	200	500
P200×300	200	200 300
P200×500	200	500
P225×200	225	200
P225×300	225	300
P225×500	225	500
P250×200	250	200
P250×300	250	300
P250×500	250	500
P280×200	280	200
P280×300	280	300
P280×500	280	500
P315×200	315	200
P315×300	315	300
P315x500	315	500

LESSO

LESSOGROUP

Guangdong LESSO Valve Co., Ltd

CONTENTS

Ductile lcon Valve

Gate Valve Series 01/

Butterfly Valve Series 21/33

Repair Clamp Series 34/40

Repair Clamp Series 41/44

Check Valve Series 45/50

Control Valve Series 64/75

Cast Steel Valve

LESSO VALVESSUCCESS IN QUALITY

Overview of gate valve series products:

Flanged Resilient-seated Gate Valve (Non-rising Stem)

) Flanged Resilient-seated Gate Valve(Non-rising Stem)

Flanged resilient-seated Gate Valve (Non-rising Stem)

Flange resilient seated sealing gate valves (Rising stem)

Soft sealing gate valves

Hard sealing gate valves (Non-rising stem)

Groove elastic seat sealing gate valves (Non-rising stem)

Security flange elastic seat sealing gate valves (megnetic lock type)

Security flange elastic seat sealing gate valves (mechanical type)

Security soft sealing gate valves (megnetic lock type)

Security soft sealing gate valves (mechanical type)

Elastic seat sealing gate valves with gatage (Non-rising stem

Elastic seat sealing gate valves with gatage (Non-rising stem)

9 Hard sealing gate valves with gatage (Non-rising stem)

Groove elastic seat sealing gate valves with gatage (Non-rising stem)

Flange worm gear gate valves

) Considerations for operation and use of gate valve series products:

Overview of butterfly valves series products:

Flange worm gear butterfly valves

Flange double eccentric worm gear butterfly valves

⊚ Flange worm gear butterfly valves (large caliber)

Signal butterfly valves

⊚ Wafer type worm gear transmission butterfly valves

Wafer type manual butterfly valves

Trench type worm gear transmission butterfly valves

Trench type manual butterfly valves

⊚ Trench type signal butterfly valves

Considerations for operation and use of butterfly valve series products:

Overviewofrepairingtoolseriesproducts:

nternal structure of the repairing tools

Standards:

⊚ Steel pipe repair coupling

Quick Repairing Tools

⊚ Wrapped head repairing tools

PE and PVC pipe repair coupling

Considerations for use and operation of repairing tool series products:

Straight Pipe Repair Clamp (For Steel Pipe)

Straight Pipe Repair Clamp (For Plastic Pipe)

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