Shanghai Fengqi Industry Development co.,ltd.

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Pressure Reducing Control Valves

Features

The 200X, Pressure Reducing Control Valves consists of Basic valve pressure reducing pilot. It automatically reduces a higher inlet pressure regardless of changing flow rate or varying inlet pressure. The pilot valve responds to slight fluctuation in the downstream and thus governs the control pressure.
200X Pressure Reducing Control Valves utilizes the self-energy of the medium to adjust the pipeline pressure and control the outlet pressure of the main valve through adjusting the pressure reducing of pilot valve. The outlet pressure does not change along with the variation of the inlet one and the water quantity of the outlet. It features by reliable performance, easy installation, maintenance, debugging and check, long duration.

Pressure Reducing Control Valves
Pressure Reducing Control Valves

DN 450 Diaphragm type valve
DN 500 piston type valve
Notes:
1. Float Ball Pilot Valve
2. Ball Valve
3. Needle Valve

Technical Parameters

Nominal Pressure: 1.0, 1.6, 2.5MPa
Shell test pressure: 1.5, 2.4, 3.75MPa
Sealed test pressure : 1.1, 1.76, 2.75MPa
Suitable temperature: 80
Suitable medium: water, Sewage

Materials

Materials: Pressure Reducing Control Valves
Serial No. Part Material
1 Body Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
2 Seat 2Cr13 / SS 304 / SS 316
3 Stem 2Cr13 / SS 304 / SS 316
4 O-ring washer Cast Iron
5 O-ring NBR
6 O-ring NBR
7 Disc Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
8 Diaphragm Rubber
9 Diaphragm Washer Cast Iron
10 Screw Bronze
11 Spring Spring steel
12 Cover Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
13 Ball Valve Bronze
14 Ball valve Bronze
15 Pressure show  
16 Pilot valve Bronze
17 Hang ring Steel
18 Pilot socket Bronze
19 Needle valve Bronze
20 Ball valve Bronze
21 Pressure show  
22 Stud Steel
23 Screw Steel

Dimensions

DNmm 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800
L 180 180 180 203 203 235 285 360 400 455 585 650 800 860 915 980 1075 1230 1300 1450
PN10 D 105 115 135 145 160 180 195 215 245 280 335 390 440 500 565 615 670 780 895 1010
D1 75 85 100 110 125 145 160 180 210 240 295 350 400 460 515 565 620 725 840 950
PN16 D 105 115 135 145 160 180 195 215 245 280 335 405 460 520 580 640 705 840 910 1020
D1 75 85 100 110 125 145 160 180 210 240 295 355 410 470 525 585 650 770 840 950
PN25 D 105 110 135 145 160 180 195 230 270 300 360 425 485 550 610 660 730 840 955 1070
D1 75 85 100 110 125 145 160 190 220 250 310 370 430 490 550 600 660 770 875 990
H 342 342 342 395 395 405 430 510 560 585 675 730 760 840 910 1030 1135 1270 1460 1640
H1 247 247 247 278 278 298 313 350 365 420 450 470 490 526 570 610 665 725 865 975

Typical Installation

Typical Installation of Pressure Reducing Control Valves