Pneumatic membrane angle high pressure regulator is a pneumatic actuator in the pneumatic unit

combination instrument. Mainly used for high pressure, high temperature and high pressure pipelines. Flow rate of

fluid media (liquid, air, air-liquid mixture, steam) can be changed, so as to achieve the regulation of medium

pressure, flow rate and other process parameters. The main difference between it and normal regulator is that it

uses high temperature and high pressure resistant shell materials, high temperature and high pressure resistant,

anti-air etching, anti-cavitation valve inner parts materials, and more precise manufacturing processes. According

to the user's specific working conditions, it adopts single-stage and multi-stage pressure drop type to minimize the

scouring and noise of the fluid to achieve stable regulation of the fluid and improve the service life of the valve

itself. Therefore, the valve has the advantages of complex structure, stable performance, reliable operation, large

allowable differential pressure, low noise, closed tightly. It has been widely used in petrochemical, power station,

metallurgy and other industrial process of automatic regulation and remote control.

1405型气动薄膜高压角形调节阀

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Product

BAIC GROUP

1405 Type Pneumatic Membrane High Pressure Angle Regulator

Structure and working principle

Pneumatic membrane angle high pressure regulator is composed of two parts: pneumatic membrane

actuator and angle high pressure regulation mechanism.

Packing restrainer

Dust collar

Packing gland

Packing

Packing seat

Upper bonnet gasket

Clamping ring

Valve core

Valve seat

Valve

Valve seat gasket

Guide sleeve

Valve rod

Restrainer stud

Hex nut

Packing spacer

Upper bonnet

Valve body stud

Hex nut

Valve body

Flange connection Standard flow direction

1. Valve body 2. Multi-stage pressure drop sleeve 3. Valve core 4. Gasket 5. Bonnet 6. Valve body stud

7. Hex nut 8. Spring lower pad 9. Packing spring 10. Spring upper pad 11. Packing 12. Hex Nut

13. Restrainer stud 14. Packing restrainer 15. \"O\"-shape seal ring 16. Packing restrainer sleeve 17. \"O\"-shape seal ring

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BAIC GROUP

Packing restrainer

Dust collar

Packing gland

Packing

Packing seat

Upper bonnet gasket

Valve core

Sleeve

Clamping ring

Gasket

Valve seat

Valve seat gasket

Valve stem

Restrainer stud

Hex nut

Packing spacer

Upper bonnet

Valve body stud

Hex nut

Valve body

Multi-stage throttling typical structure

Main parts materials

Component Material

Valve body (forging part) 20 30354035CrMo

35CrMoA 0Cr18Ni9Ti 0Cr17Ni12Mo2

Valve core, valve stem, valve

seat 1Cr18Ni9Ti 1Cr18Ni9Ti build-up welding Stellite Alloy 17-4PH SUS440C

Bolt/nut 35CrMoA 40Cr

Gasket Flexible graphite sandwich metal, reinforced PTFE,0Cr18Ni9,red copper

Packing PTFE,reinforced PTFE, flexible Graphite

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Product

BAIC GROUP

Main technical parameters and characteristics

Nominal diameter mm

Single-stage 15,20,25,32,40,50,65,80,100,125

Multi-stage 15,20,25,32,40,50,65,80

Nominal pressure MPa 16.0 22.0(25.0) 32.0 42.0 (According to JB2766-92)

Nominal pressure (lbs) CLASS 600 900 15002500

Operating temperature ℃ -40～550

Intrinsic flow characteristics Linear, equal percentage

Connection method Welded type: (with JB2769-92 threaded flange)

Flange type: can be specified according to user standards

Upper bonnet type Normal type (-40～250℃) Hot plate type (250～550℃)

Leakage amount level according

to GB/T4213-92

Single-stage Single-seat: Class VI (bubble class) Sleeve: Class IV

Multi-stage Class IV

Actuator drive source pressure

(MPa)

Air-to-open 0.250.30

Air-to-close 0.140.25 0.30

Optional accessories Electrical valve positioners, electrical converters, air filter decompresser, valve position

transmitters, holding valve, solenoid valve, handwheel mechanisms

Main implementation standards

1.GB/T4213-92 Pneumatic regulator

2.JB2766-92 Forged high pressure valve

3.JB/T2768-2778 High pressure valve structure parts

4.JB/T6323 Power station valve manufacturing technical conditions

Installation, maintenance and repair

1. Before installation, the pipe should be free of welding slag, oil, mud and sand and

other impurities. If it is not possible to ensure that the medium is clean, a filter should be

installed before the valve.2. A globe valve should be installed in front of the valve, and a

bypass globe valve should be installed if necessary.

3. If the valve is equipped with a handwheel, make sure that the handwheel mechanism

is in the automatic position when it is in automatic regulation.

4. If the internal leakage is found to exceed the standard after long-term use, the valve

core and valve seat should be reground treatment.

5. If leakage is found after long-term use, the packing or gasket should be replaced.

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BAIC GROUP

Other technical data for high pressure valve

Nominal diameter

DN(mm) 15 20 25 32 40 50 65 80 100 125

Stroke h (mm) 10 16 25 40 60

Valve seat

diameter(mm) 3 4 5 6 7 8 10 12 15 20

Multi-stage throttle

Sleeve type 40

Multistage

throttle

50 70 90 110 130

4 5 6 7 10 20

Rated flow

coefficient Kv 0.08 0.12 0.20 0.32 0.5 0.8 1.2 2.0 3.2 5.0 0.08

0.12 0.2 0.32 0.5

0.63

0.80

1.20

1.6

2.5

3.2

4.0

2 3 5 8 10 16 6.3 10 40 63 100 100 250

Upstrea

m

pressur

e at test

(MPa)

Air-toopen

type 32 32

22 15 11 8.7 5.6 3.9 2.5

15

1.5

6.4

20

3 6.4

25

5 6.4

32

1

Air

pressure

type

40

32 32

50

24 8.8

65

6.4 6.4

80

5.3 3

Medium

temperature range

(℃

100

)

-40～550℃

Flow

125

characteristics Linear Linear, equal

3～8

percentage Linear

10

Equal percent Linear Equal

12

percent Linear

Equal

15

percent

Input at

testMembrane

chamber pressure

(KPa)

10

Air-to-open valve P=0 Air-to-close valve P=180

12 15 20 4～10 20

φ280

Air-to-open type 32

Air-to-close type 15

φ308

Air-to-open type 32 28 19.4 12.4 28 19.4 12.4 7.5 15 32 32 25.7

Air-to-close type 32 32 32 26.7 32 32 26.7 15 15 32 32 25.7

φ395

Air-to-open type 32

Air-to-close type 32

φ500

Air-to-open type 32 32 10

Air-to-close type 32 32 10

Spring

range KPa

Air-to-open type 40～200 80～240

Air-to-close type 20~100

Note: 1. The whole machine action mode in air-to-open and air-to-close.

2. Temperature range -20 ~ 80℃ for the O-shape rubber ring balanced type.

3. Leakage amount: Single-seat: Class VI (bubble class) Tight type: no leakage; sleeve valve:

Class IV (GB/T4213-92)

High pressure regulator allowable differential pressure outer diameter mm Membrane head

Nominal

diameter

(mm)

Action

mode

Valve seat

diameter

(mm)

Note: The standard signal pressure is: air-to-close type: 20 ~ 100KPa

air-to-open type: 40-200KPa (also available with 80-240KPa)

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Product

BAIC GROUP

Outline and mounting dimensions

Unit: mm

DN L

H1

Dn

Single-stage Single-stage heat

dissipation type Multi-stage Multi-stage heat

dissipation type

10 125 400

DN

500

L1

550

L2

650

H

φ308

Dn

15

Single-stage Single-stage heat

125

dissipation type

400

Multi-stage Multi-stage heat

500

dissipation type

550

10

650

90

φ308

165

20

400

150

500

400

550

500

650 φ

550

308

650

15

φ308

105

25

175

150

400

400

500

500

550

550

650 φ

650

308

φ308

20

32

120

175

210

450

400

560

500

630

550

750

650 φ

φ395

308

40

25

190

120

480

210

590

400

710

500

830

550

φ395

650 φ

50

308

230

32

550

155

630

225

780

450

900

560

φ395

630

80

750 φ

300

395

750

40

850

190

980

295

1125

480

φ500

590

100

710

400

830 φ

855

395

985

50

1155

230

1355

325

φ500

550

125

630

450

780

965

900 φ

1255

395

1435

80

1655

300

φ500

455 750 850 980 1125 φ500

100 400 565 855 985 1155 1355 φ500

125 450 655 965 1255 1435 1655 φ500

Welded type:

Flange type

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Product

BAIC GROUP

Ordering information

When ordering, users are requested to provide the following materials

· Regulator name, model and purpose.

· Nominal diameter (mm), nominal pressure (MPa), operating temperature and range.

· Upstream pressure, downstream pressure.

· Media name and status, media flow rate.

· Bonnet type.

· Whole machine action mode (air-to-open or air-to-close), instrument air (air source pressure).

· Material requirements for valve body and valve internal parts.

· Accessory requirements:

Electro-pneumatic valve positioners, air filter decompressor, solenoid valve, holding valve, valve

position transmitters, (top-mounted) handwheels, etc.

· Valve body flange standards.

· Valve body structure length (flange surface distance L).

· Other special requirements (e.g., corrosion resistance requirements, explosion-proof level

requirements, leakage level limitation requirements, etc.).

Technical parameters are subject to change without notice!