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Self-pressure regulating valve
Model: ZZY type
Nominal diameter: DN20 ~ 300mm
Nominal pressure: PN16 ~ 64MPa
Temperature: ≤ 350 ℃
Main material: ZG230-450 ZG1Cr18Ni9Ti ZGOCr18Ni12M02Ti
Design criteria: GB / T17213
Inspection standards: GB / T4213
Flange Standard: JIS B220 , JB / T79, ANSI B16.5-1981, GB / T9113, HG20594-97, HG20618-97, etc.
Product details

Product description:

ZZY-type self-acting pressure regulating valve without external energy, the use of the media itself as the power of the media to be adjusted, the introduction of the actuator control spool position, change both ends of the pressure and flow, so that before the valve (or valve) pressure stability. With sensitive, good sealing, small pressure set point fluctuations, etc., are widely used in gas, liquid and vapor pressure regulator decompression regulator or automatic control. 
 This series of products have a single seat (ZZYP), sleeve (ZZYM), two-seat (ZZYN) three structures; executive body film, piston two; role type decompression valve with the pressure regulator (B type) And pressure relief valve with pressure regulator (K type). Product nominal pressure rating PN16, 40, 64; body diameter range DN20 ~ 300; leakage levels are II, IV and VI third gear; flow characteristics for quick opening; pressure sub-adjustment from 15 ~ 2500kPa. Can be combined as needed to meet the needs of user conditions.
 

Features:

1, Self-operated pressure control valve without additional energy, can work in a non-electric gas-free place, both convenient and energy saving. 
 2, the pressure range of small and cross each other, adjust the high precision. 
 3, the pressure setting can be set continuously during operation. 
 4, after the valve pressure regulator, the pressure before the valve and valve pressure ratio of 10: 1 ~ 10: 8. 
 5, rubber diaphragm detection, the implementation of high precision detection, action sensitive. 
 6, the use of pressure balance mechanism, so that the control valve responsive and precise control.


The main dimensions

Nominal diameter

20

25

32

40

50

65

80

100

125

150

200

250

300

Flange take over size B

383

512

603

862

1023

1380

1800

2000

2200

Flange face distance L

150

160

180

200

230

290

310

350

400

480

600

730

850

Pressure

force

Tune

Festival

Fan

Wai

kPa

15 ~ 140

H

475

520

540

710

780

840

880

915

940

1000

A

280

308

280 ~ 500

H

455

500

520

690

760

800

870

880

900

950

A

230

120 ~ 300

H

450

490

510

680

750

790

860

870

890

940

A

176

194

280

480 ~ 1000

H

445

480

670

740

780

850

860

880

930

A

176

194

280

600 ~ 1500

H

445

570

600

820

890

950

1000

1100

1200

A

85

96

1000 ~ 2500

H

445

570

600

820

890

950

1000

1100

1200

A

85

96

Weight kg

26

37

42

72

90

114

130

144

180

200

250

Pressure pipe connector thread

M16X1.5


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