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Self operated differential pressure control valve

Product Overview

Self operated differential pressure control valve is a kind of valve that USES the pressure change of the medium itself to control itself so as to keep the pressure difference through the controlled system medium unchanged.It is suitable for the control of pressure difference in heating system with two pipes.Ensure the system pressure difference is basically unchanged, reduce noise, balance resistance, eliminate heat grid and hydraulic maladjustment.

Structural characteristics

1. The valve body adopts full channel and streamlined design, with small fluid resistance and large flow rate.
2. The joint of body, cover and piston rod is sealed by sealing gasket and sealing ring with no leakage.
3. Valve body, piston cylinder, piston double guide, smooth and reliable movement.
4. All stainless steel piston cylinder, monolithic cast piston, NBR sealing ring.
The perfect combination greatly extends the service life.
5. Removable valve seat with advanced technology, with clever structure, novel conception and convenient maintenance and replacement.
6. The piston cylinder with diversion holes can increase the resistance properly to make the piston motion more stable.

Execution standard

Flange standard: GB/ T17241.6GB /T 9113
Test standard: GB/T 13927 AP1 598

Performance parameter

Nominal pressure: DN1.6mpa
Nominal size: PN15~125mm
Applicable medium: water, oil and other non-corrosive liquids
Applicable temperature: 0~100℃
Pressure difference control range: constant pressure difference type 10KPa, 20KPa, 30KPa

Product Dimensions

DN

15

20

25

32

40

50

65

80

100

125

Connection mode

Thread

Flange

L

110

110

115

130

200

215

230

275

290

310

H(mm)

Constant pressure difference type

95

110

130

140

190

205

240

300

350

380

Flow

0.2-1

0.3-1.5

0.5-2

1-4

1.5-6

2-8 1

3-12

5-20

10-30

15-45

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