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