Your location:Products >> Hydraulic control valve >> Pressure reducing valve
Pressure reducing valve
Model: 200X
Nominal diameter: DN50 ~ 1000mm
Nominal pressure: 1.0 ~ 2.5MPa
Medium: Water
Temperature: 0 ~ 80 ℃
Flange Standard: GB / T 17241.6, GB / T 9113
Test standards: GB / T 13927 API598

First, 200X-type pressure reducing valve (adjustable pressure reducing valve) Structural features and uses: 
 200X pressure reducing valve (adjustable pressure reducing valve) from the main valve, pilot valve, needle valve, ball valve, miniature filter and pressure gauge Composition of hydraulic control system. When used, when adjusted after the outlet pressure, can automatically maintain a stable outlet pressure. 
 200X pressure reducing valve utilizes pilot valve self-control, does not require other devices and energy, easy maintenance, high pressure control accuracy, pressure and flow by the import of small, reliable decompression and voltage regulator. 
 200X valve products are widely used in high-rise buildings, living areas and other water supply pipe network systems and urban water supply projects.
 

Second, 200X-type pressure reducing valve (adjustable pressure reducing valve) Working principle:
 When the valve from the inlet side of the water, the water flow through the needle valve into the main valve control room, the outlet pressure through the conduit to the pilot valve. When the outlet pressure is higher than the set value of the pilot valve, the pilot valve is closed. Control room to stop drainage, then the main valve control room pressure and shut off the main valve, the outlet pressure is no longer increased. 
 When the valve outlet pressure drops to set the pilot valve spring pressure, pilot valve open, the control room to the downstream drainage. As the pilot valve system displacement is greater than the needle valve inlet, the main valve control room pressure drop. Import pressure to open the main valve. In a steady state, the control room water, the same drainage, the main valve opening unchanged, the outlet pressure is stable. Adjust pilot valve spring to set outlet pressure.
 

Third, 200X-type valve main technical parameters:

Nominal pressure (Mpa)

Shell test pressure (MPa)

Seal test pressure (MPa)

The maximum inlet pressure (MPa)

Export adjustable pressure (MPa)

Suitable media

Medium temperature (℃)

1.0

1.5

1.1

1.0

0.09-0.8

water

0-80

1.6

2.4

1.76

1.6

0.10-1.2

2.5

3.75

2.75

2.5

0.15-1.6


 Fourth, 200X-type valve main parts material:

Part Name

Parts and materials

Body valve cover

WCB

Valve seat disc

Copper alloy

O-ring seals

Nitrile rubber

Valve stem

2Cr13

spring

50CrVA

Needle valve

Copper alloy

Ball valve

Copper alloy

Pilot valve

Copper alloy

Micro filter

stainless steel


 Fifth, 200X pressure reducing valve connection size (PN 1.0-2.5MPa):

Nominal diameter DN

L

H

H1

A

B

50

250

335

90

170

170

65

280

345

98

180

180

80

310

355

110

190

190

100

350

365

120

200

200

125

400

445

145

215

215

150

450

460

155

230

230

200

550

505

190

255

255

250

650

550

250

295

295

300

800

710

290

325

325

350

900

725

330

380

380

400

1000

760

360

415

415

450

1000

810

445

435

435

500

1100

865

495

460

460

600

1100

935

550

520

520

700

1450

1000

605

570

570

800

1560

1100

730

620

620

900

1800

1205

800

670

670

1000

2000

1330

910

830

830


The next：Slow closing check valve
The previous：Remote control float valve