NEVER STOP IMPROVING

We are continuously improving everything for our customers and look to create asuccessfulpartnershipwitheverycustomer.LearnmoreaboutYuedingby shoppingwithustoday.

ENTERPRISE BRIEFINTRODUCTION

企业简介

浙江乐鼎波纹管有限公司创建于1992年，占地面积2万多平方米，现有员工300余人，注册资金6811万元，是国家高新技术企业、中国石油天然气集团公司能源一号网成员、中国石化集团公司一级网络成员、中国汽车工业协会会员、浙江省百家诚信优秀企业、A级资信企业。

公司通过ISO9001、ISO14001、ISO45001、QSY1002.1、IATF16949国际管理体系认证，取得特种设备压力管道元件制造许可证。拥有国家发明专利2项、实用新型专利50余项，国家火炬计划项目3项、科技部创新基金项目1项，是石油储罐中央排水系统行业标准（标准号：SY/T0511.6-2010）参加起草单位。

公司主营产品有：分规式（外曲型）中央排水装置、不锈钢金属软管、波纹补偿器、汽车排气波纹管、卡箍、真空波纹管、船用波纹管、稠油注蒸汽管线井口补偿装置、纤维织物非金属补偿器、橡胶软管等。产品均严格按照国家GB/T12777-2019、GB/T14525-2010和美国《EJMA》标准设计、生产、检验。产品以质量优异、价格合理畅销国内各省、市、自治区，并出口美国、德国等50多个国家，产品广泛应用于石油、化工、压缩机、汽配、真空、电力、水泥、钢铁、机械、建筑、航空、橡胶、医药、食品、消防等行业。

展望未来，志存高远，自主创新的乐鼎人将继续发扬“质量第一、用户第一、信誉第一”的经营宗旨，大力发扬“团结、拼搏、求实、创新”的企业精神和“严谨、高效、热情、文明”的企业作风，以更加饱满的热情、强烈的进取心以及谦虚友好的合作态度，齐心协力共创企业辉煌。

Zhejiang Yueding Corrugated Tube co.,Ltd. was established in 1992 with an area of 20oo0 square meters,it is located in Nan tang Industrial Zone, Yueqing City of Zhejiang Province, China.Yueding successfully passed ISO9001、ISO14001、ISO45001、QSY1002.1、IATF16949 and it is a manufacturer committed to meeting the needs of companies of all sizes. We produce quality products and work to provide constant communication with our clients.Our dedication to excellence allows us to be a stable solution in the marketplace with a quick lead time.We primarily focus on exhaust pipes and clamps,including metal hoses and other pipes that are used within the automotive industry. Perhaps what we are best known for is our stainless steel muffler auto parts,which are sold globally and used as an aftermarket product.

The factory at Yueding is top notch and is inspected on a regular basis. This allows us to produce high quality parts at alltimes.The factory has been up andrunningforseveralyearsnowandwehavegainedapremierreputation inAsiaaswellastherestof theworldforproducingpartsthatcanbetrusted duetothequalitymaterialsthatareusedaswellasthewell thoughtout designs.

Yueding has had great successbecause of a team effort.Wehave designers, engineers,and others who are involved in the process of manufacturing parts.We explore the top materials to use as well as continuously add more technology and innovation to produce higher quality parts.It has helped us to gain the popularity that wehave because we offer a good product at a goodprice.

We are continuouslyimprovingthe shoppingexperienceforourcustomers and look to create a successful partnership with each and every customer. Learnmore about Yueding by shoppingwith ustoday.

办公区和场景图

一直以来，坚持质量就是生命的经营理念，始终印证着我们发展的每一个脚步，我们因此赢得的不仅是全部信赖的目光，更是坚定着我们进取的决心与信心！

以人为本，科技创新！坚持以人为本的理念，在生产发展过程中，注重员工的知识水平和业务能力，有计划，有组织地展开各项培训工作，不断提高学习和创造能力，以科技为发展的动力，在原有的基础上，致力于各项产品的研发和创新！

Adhering to the business philosophy that quality is life has always been a testament to every step of our development.What we have won is not only the eyes of all the trust,but alsothe determination and confidenceof ourprogress!

People-oriented,technological innovation!Adheretothe conceptofpeopleoriented,in the process of production and development,pay attention to the knowledgeleveland professional ability of employees,carry out varioustraining work in a planned and organized manner, continuously improve learning and creativity,and take science and technology as the driving force for development.

ENTERPRISE QUALIFICATION 企业资质

产品质量是人的素质的体现！每一个产品的诞生都体现了员工对技术的深刻理解和熟练掌握，以人为本的技术，以质量为本的产品，坚持不懈地专注于汽车零部件及工业产品的技术发展规律，使我们始终站在行业的最前沿！

为保证产品质量的稳定性和可靠性，我们坚持国际化体系运行，并对产品的生产过程进行严格的检测监控，我们的高标准是因为我们的品牌完美的追求，我们的诸多认证不仅仅是我们的荣誉，更是我们前进的动力！

Product quality is the embodiment of people's quality!The birth of every product reflectsthe deep understanding and skilful mastery.com of technologybyemployees,people-oriented technology,guality21 orientedproducts,Perseverance tofocus on the auto parts and industrial products and technology development law,so thatwe always stand intheforefrontof theindustry!

In orderto ensure the stability and reliability of product quality,we adheretotheoperationoftheintermationalsystem,andcarry out strict inspection and monitoring of the production process of the products. Our high standards are due to the pursuit of perfection in our brand. The certifications are not onlyourhonor,but also our driving force!

PRODUCTCATALOG产品目录

Vacuumbellowsseries真空波纹管系列

Turbobellows series涡轮波纹管系列

Elastic bellows series弹性波纹管系列

Conventionalbellowsseries常规波纹管系列

Metal corrugated pipes can also be used as corrugated pipe components,consisting of two or more parts,one of which is a corrugated pipe,and the otheris accessories such asflanges.Generally made of thin-walled metal tubes such as brass, tin bronze, beryllium bronze,and stainlesssteel through hydraulicpressure.It is folded by a series of thin metal sheets along the axial direction,forming a wavy structurewithhighelasticity and compressibility.Thisstructure can freely expand and contract under external forces such as pressure, temperature changes,andvibration.Therefore,its main functions include measurement,connection,compensation,isolation,sensing, sealing,shock absorption,etc.Its applicationfieldsinvolvevarious departments such as chemicalengineering,petroleum,metallurgy, heating,environmental protection,aerospace,aviation,navigation, instrumentation,automation,and even daily life

金属波纹管，也能作为波纹管组件使用，即二个或二个以上零con721件组成，其中之一是波纹管，其他是法兰等配件。一般由黄铜，锡青铜，铍青铜和不锈钢等金属薄壁管经液压而成。由一系列薄金属片沿着轴向折叠而成，形成了一种波浪形的结构，具有很高的弹性和可压缩性。这种结构可以在承受压力、温度变化、振动等外部力的作用下自由伸缩，因此，其主要功能有测量、连接、补偿、隔离、传感、密封、减震等。其应用领域涉及化工、石油、治金、供热、环保、航天、航空、航海、仪、自动化乃至日常生活等各个部门。

d-lnner diameter(diameter)
D-outerdiameter
Single layer wall thickness of
O-corrugated pipe
t-wave distance
a-wavethickness
h-wave height
D1-Innerfitting diameter
d1-Outerfitting diameter
d-内径（通径）
D-外径
0-波纹管单层壁厚
t一波距
a-波厚
h-波高
D1-内配合直径
d1-外配合直径
rn-Internal ripplefillet radius
rm-radius of outerripplerounded corner
L-totallength(freelength)
LO effectivelength
L1-Internal fitting interfacelength
L2 External mating interfacelength
n-numberof ripples
Z-Number of layers of corrugated pipe wall rn-内波纹圆角半径 rm-外波纹圆角半径 L-总长度 (自由长度) LO-有效长度
L1-内配合接口长度 L2-外配合接口长度 n-波纹数
Z-波纹管壁的层数

Hole Flange Vacuum Bellows

带孔法兰真空波纹管

概述/Overview

It is welded byabellows andaflange with bolt holes.Theflange ismadeaccording to the GB/T6070vacuumflange standard.It isconnectedbybolts,gaskets and nuts.It canbemadeintoaloosesleeveat one endand fixedat theotherend.Itcanprocesssealinggrooves and customized length,Diameterisavailable fromDN25-DN1000.

由波纹管和带螺栓孔的法兰焊接而成，法兰依据GB/T6070真空法兰标准制作，使用螺栓、垫片和螺母连接，可以制作一端松套，一端固定，可加工密封槽，可定制长度，常用通径DN25-DN10008721

产品特点/Features

\bigcirc Widelyenaumucupiinecfuacandothystemwiththtifshckabortio,sament abrpti equipmentprotection.

\bigcirc 广泛应用于真空泵，真空管路，真空炉等系统中，可起到减震、吸收位移和保护设备的作用。

外形尺寸/Dimensions(mm)

⊚ 技术参数/Technicalparameter

ISO Vacuum Bellows

ISO真空波纹管

概述/Overview

ISOflange,alsoknownascaliperflange,isalsoacommonsealingconnectionmethodindailyvacuum systemsmainlyused inhighvacuumsystems.tsrange is from DN63-DN320. Ourcompany specializes in the production of high-vacuum (ISO) compressible vacuum bellows, which are made of SUS304 or 316L stainlesssteel,withlargeexpansionandcontraction,niceweldingand reliablequality.

ISO法兰亦称卡钳法兰也是日常真空系统中比较常见的密封连接方式，主要应用在高真空系统中。常用规格从DN63-DN320。我公司专业生产高真空用（ISO）可压缩真空波纹管，采用SUS304或316L不锈钢，伸缩量大焊接美观，质量可靠。

产品特点/Features

\bigcirc It is used for high vacuum interface,connected by caliperbolts and centerbracket.
\bigcirc Allproductsleavethefactoryafter 100% inspection.
\bigcirc Variouslengthscanbecustomized. \bigcirc 用于高真空接口，采用卡钳螺栓和中心支架连接方式。
\bigcirc 所有产品均经 100% 检测合格后出厂。
\bigcirc 可根据客户需求定制各种长度。

外形尺寸/Dimensions（mm）

⊚ 技术参数/Technicalparameter

KF Vacuum Bellows

KF真空波纹管

概述/Overview

The utilitymodel relatesto avacum bellows inthe form of quick discharge flanges, whichis a common sealing connectionmethod in daily vacum systems and is mainly used inhigh vacuum systems.Specifications from KF10-KF50.The corrugated pipe is generally made of stainless steel SUS304 or SUS316L material,withgood elasticity,good softness,beautiful welding and reliablequality.

一种快卸法兰形式真空波纹管，日常真空系统中比较常见的密封连接方式，主要应用在高真空系统中。规格从KF10-KF50。波纹管一般采用不锈钢SUS304或SUS316L材质，弹性好，0柔软度好，焊接美观，质量可靠。

产品特点/Features

\bigcirc No bolts, nuts, easy to load and unload.
\bigcirc All productsare 100% tested afterdelivery.
\bigcirc Variouslengths canbecustomized accordingto customer needs.
\bigcirc StandardreferenceGB/T4982-2003. \bigcirc 不用螺栓、螺帽、可以简单装卸。
\bigcirc 所有产品均经 100% 检测合格后出厂。
○可根据客户需求定制各种长度。
\bigcirc 标准参考GB/T4982-2003。

外形尺寸/Dimensions（mm）

技术参数/Technicalparameter

技人品牌设计 05761273is.c0m

CF Vacuum Bellows

CF真空波纹管

概述/Overview

Basic description of CF vacuum bellows:
1. Used in ultra-high vacuum state, the flange can be
rotatedononeside
2.Sealed with copper gasket,bolted connection
3.Temperaturerange-196\~450°℃
4. Helium leakage: 5x10- Below 10 Pa m3/s

CF真空波纹管基本说明：
1.用于超高真空状态，法兰可单侧旋转
2.用铜垫片来密封，螺栓连接
3.温度范围-196\~450°℃
4.氮泄漏量：5x10-10Pam3/s以下

CF vacuum bellows material types: 1. CF vacuum flange material: suUsa04o susmaeral 计 SUS304 orSUS316L

CF真空波纹管材质种类：1.CF真空法兰材质：SUS304 or SUS316L2.真空波纹管材质：SUS304 or SUS316L

产品特点/Features

Wielyvitiuiritt广泛用于航天、航空、冶金、石油化工、船舶、建材、电力、热力、煤气等行业

外形尺寸/Dimensions(mm)

技术参数/Technicalparameter

技人品牌设计 0576173is.c0m

涡轮波纹管/Turbobellows

Our 304 Stainless Steel Flex Bellows minimize the potential for cracking in turbo manifolds, dump tubes, downpipes and other automotive and industrial applications.Utilizinga slip-fit designthat allowsthematching tubesizematerial to slipinto thebellow,our exhaustflexbellowsfeature a smoothbore directional inner liner that needs to be placed in the flow of the exhaust gas,T-bolt V bend clamps are widely used as a whole set with the turbo bellows. ID available1.5”，1.75”，2”，2.25”，2.5”3”，3.5”,4”，length customized

我们的304不锈钢柔性波纹管最大限度地降低了涡轮歧管、排放管、落水管和其他汽车和工业应用中的开裂可能性。我们的排气柔性波纹管采用滑动配合设计，允许匹配的管道尺寸材料滑入波纹管，具有光滑的孔方向内衬，可和T型V槽卡箍配套使用。卑设1十 www.jrcis.con0577-62733721内径可选1.5"、1.75"、2"、2.25"、2.5"、3"、3.5"、4"，长度可定制

⊚ 常规波纹管/VariousBellows

Thistypeofbellowshasthecharacteristicsofaxialsupportforceandstrongphaseresistance,andismoresuitableforuseinautomobilesandpipelinesystems.
It can absorb the physical quantityof axial expansion and contraction caused by medium temperature changes.
Available size: 6mm{-300mm Largersizearealsoavailable. 该类波纹管具有轴向支撑力、抗相力较强等特点，比较适合用于汽车上，管道系统，补恒吸收因介质温度变化而产生的轴向伸缩的物理量。
波纹管尺寸：6mm-300mm，在大通径的尺寸也可以定制。 It ismadfrasstnronzestanlessste0serieandvarioushigh-temperatureresistantallysteels.Generallyifferentmaterialsifferentconectn methods, different material thicknesses and precision requirements can be produced according to customer requirements.
Therearemorethan20processesintheproductionprocessofbellowsandrelatedtestingexperimentsincludeairtightnesstesting,stifnesstestingandm fatigue testinguallyusedinthe productionof thermostats,coulingstemeraturecontrol switchepressurecontrol witcheariousvalvesandseal Asaensitivelment,susedfrressurdiferentialpressureandtmperaturemasurementsealingandisolatinfvauumvaletmperatureand pressure compensation of variousfluids,automaticcontrol and measuring instruments,etc.

弹性波纹管/Elasticbellows

由黄铜，锡青铜、不锈钢300系列和各种耐高温合金钢制成，一般可以应客户要求生产不同材质、不同连接方式、不同材料厚度及精度的要求。波纹管生产工艺多达二十几道工序，相关检测实验有气密性检测，刚度检测和疲劳测试等检验。通常应用于生产温控器、联轴器、温控开关、压力控制开关、各类阀门及密封件。作为敏感元件用于压力、压差和温度的测量，真空阀门的密封隔离，各种流体的温度压力补偿，自动控制和测量仪表等。

⊚ KF真空接头/KFvacuumconnector

⊚ KF卡箍(304不锈钢）/KFclamp(304stainless steel)

⊚ KF卡箍（铝合金）/KF clamp(Aluminium alloy)

⊚ ISO、KF中心支架(304不锈钢）/IS0,KFcenterbracket(304stainlesssteel)

⊚ ISO-K真空盲板、法兰(304不锈钢)/IS0-Kvacuumblindplate,flange(304stainlesssteel)

⊚ ISOC型卡钳(铝合金）/IsO C-type calipers(aluminum alloy)

⊚ ISO钩型螺栓(304不锈钢)/ISOHookBolts(304StainlessSteel)

⊚ ISO-F真空固定法兰(304不锈钢）/IS0-Fvacuumfixedflange(304stainlesssteel)

⊚ CF真空法兰系列CFvacuumflangeseries

技人品牌设计 w57761733s.c0m

SALES
DISTRIBUTIONMAP
销售分布图

我们一直在追求顶级全球战略，我们充分利用我们在技术上的优势进行深入设计和研究，基于客户需求，我们加大新产品的研发力量，从而建立在产品开发方面的领先地位。

目前，我们的全球市场已发展至世界100多个国家及地区，产品远销亚洲、欧洲、北美洲、南美洲、非洲等地区，销售占比达5亿。企业自成立至今，企业自主研发的产品深受国内外客户一致好评，并纷纷建立了长期的合作。我们始终以效益为中心、以市场为导向、勇于挑战、服务全球。

We have been pursuing a top-level global strategy, we make full use of our advantages in technology to conduct in-depth design and research,base on customer need,we payhigh attention to the technical design and development of new products, as tobuild on the product leadership in development.

At present, our global market has grown to more than 100 countries and regions in the world, and our products are exported to Asia,Europe,North America,South America,Africa and other regions,with sales accounting for 500million.Sincetheestablishment of thecompany,the products independently developedbythe companyhave beenwellreceived by domesticand foreign customers,and haveestablished long-termcooperation.Wehave always beenbenefit-centered,market-oriented,courageous to challenge,and serve theworld.

100+ countryandregion