Huizheng Self Control Valve Group Co., Ltd
Home>Products>Self operated pressure regulating valve ZZY series
Firm Information
  • Transaction Level
    VIP member
  • Contact
  • Phone
    15868777154
  • Address
    Yanghetou, He Yi Industrial Zone, Oubei Town, Yongjia, Wenzhou, Zhejiang Province
Contact Now
Self operated pressure regulating valve ZZY series
Self operated pressure regulating valve ZZY series
Product details

ZZY typeSelf operated pressure regulating valveWithout the need for external energy, using the energy of the regulated medium itself as a power source, introducing an actuator to control the position of the valve core, changing the pressure difference and flow rate at both ends, and stabilizing the pressure before (or after) the valve. It has the advantages of sensitive action, good sealing, and small pressure set point fluctuations, and is widely used in automatic control of pressure reduction and stabilization or release and stabilization of gas, liquid, and steam media. This series of regulating valves has two types of functions: pressure relief valve rear pressure regulation (Type B) and pressure relief valve front pressure regulation (Type K). The pressure is adjusted in stages from 15 to 250KPa. Can be combined as needed to meet user operating requirements.

1、 Overview of ZZY type self operated pressure regulating valve

This seriesDifferential pressure control valveIt does not require external energy, uses the energy of the regulated medium itself as a power source, introduces an actuator to control the position of the valve core, changes the pressure difference and flow rate at both ends, and stabilizes the pressure before (or after) the valve. It has the advantages of sensitive action, good sealing, and small pressure set point fluctuations, and is widely used in automatic control of pressure reduction and stabilization or release and stabilization of gas, liquid, and steam media.

The ZZY type self operated pressure regulating valve has three structures: single seat (ZZYP), sleeve (ZZYM), and double seat (ZZYN). The execution structure has two types: diaphragm type and piston type. The action types include pressure regulation after the pressure reducing valve (B type) and pressure regulation before the pressure releasing valve (K type). The nominal pressure rating of the product includes PN16, 40, and 64; Valve body diameter range DN20~300; There are three levels of leakage levels: Level II, Level IV, and Level VI; The traffic characteristic is fast opening; The pressure is adjusted in stages from 15 to 250MPa. Can be combined as needed to meet user operating requirements.

2、 ZZY type self operated pressure regulating valve body

Valve body form:

Direct casting valve

Nominal diameter:

DN25、 32, 40, 50, 65, 80, 100, 200, 250, 300

Nominal pressure:

PN 1.6、 2.5、4.0、6.4、10Mpa

ANSI 150、 300、 600Lb

JIS 10K、 20K、30K

Connection method:

Flanges FF, RF, RTJ, etc

Welding:

SW、 BW

Flange distance:

Compliant with IEC 534

Valve cover form:

Standard type, extended type (heat dissipation, low temperature, bellows sealing)

Packing:

VPTFE, flexible graphite packing, etc

a seal:

Metal clip graphite sealing gasket

Executing Agency:

Self standing spring actuator

3、 ZZY type self operated pressure regulating valve internal components

Valve core type:

Single seat, socket, double seat

Traffic characteristics:

Equal percentage, linear

Internal material:

Please refer to the appendix for the standard material combination, usage temperature, and pressure range

4、 ZZY type self operated pressure regulating valve offers various options

valve body

type

straight through

Valve cover

type

Standard and extended type

texture of material

WCBWC9CF8CF8Mclass

material

WCBWC9CF8CF8M

valve core

characteristic

Straight line, equal percentage, quick opening

filler

“V”typePTFEFlexible graphite, corrugated pipe

material

304304+STL/PTFE316316+STL/PTFE

Actuator

Self standing spring actuator

positioner

-

attachment

Pressure conduit and joint

5、 Performance parameters of ZZY type self operated pressure regulating valve

Nominal diameter(DN

20

25

32

40

50

65

80

100

125

150

200

250

300

Rated flow coefficient(KV

7

11

20

30

48

75

120

190

300

480

760

1100

1750

Rated travel(mm

8

10

14

20

25

40

50

60

Nominal pressure(MPa

1.6 4.0 6.4

Pressure regulation range(Mpa

15~50 40~80 60~140 120~220 160~220 200~260
240~300 280~350 330~400 380~450 480~560 540~620
600~700 680~800 780~900 880~1000 950~~2500

Traffic characteristics

Quick open

adjusting accuracy%

±5

Usage temperature(

≤350

1Allowable leakage amount

Hard seal(1/h

Single seat:≤10-4Rated capacity of valve(IV)Grade; Double seat, sleeve:≤5×10-4Rated capacity of valve(IIGrade)

Soft seal(1/h

0.15

0.30

0.45

0.60

0.90

1.7

4.0

6.75

11.10

16.0

2Pressure reduction ratio

big

10

small

1.25

6、 The significance of ZZY type self operated pressure regulating valve model

7、 ZZY Self operated Differential Pressure Control Valve Dimensions and Weight


Flange connection size(B

383

512

603

862

1023

1380

1800

2000

2200

Distance between flange end faces(L

150

160

180

200

230

290

310

350

400

480

600

730

850

Pressure regulation range(Kpa

15-140

H

475

520

540

710

780

840

880

915

940

1000

A

280

308

200-500

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

980

950

1000

1100

1200

A

85

96

Weight(Kg

26

37

42

72

90

114

130

144

180

200

250

Thread of pressure pipe joint

M1.6×1.5

8、 ZZY type self operated pressure regulating valve ordering instructions

1. Name and model of ZZY type self operated pressure regulating valve.

2. ZZY type self operated pressure regulating valve nominal diameter (mm) and nominal pressure (MPa).

3. ZZZY type self operated pressure regulating valve rated flow coefficient (Kv).

4. ZZY type self operated pressure regulating valve medium name.

5. The working temperature and range of ZZY type self operated pressure regulating valve.

6. ZZY type self operated pressure regulating valve body, valve internals, and packing material.

9. Accessories for ZZY type self operated pressure regulating valve

Online inquiry
  • Contacts
  • Company
  • Telephone
  • Email
  • WeChat
  • Verification Code
  • Message Content

Successful operation!

Successful operation!

Successful operation!