Shanghai Fengqi Industry Development co.,ltd.

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Pressure Reducing & Sustaining Control Valves with Downstream Surge Control

Features

Pressure Reducing & Sustaining Control Valve with Downstream Surge Control is mounted on the pipeline of high buildings, fire-fighting and other water supply systems. The Pressure Reducing & Sustaining Control Valve with Downstream Surge Control will open automatically to discharge the pressure quickly when the pressure inside the pipeline surpasses the set one so as to protect the pipelines safety. It can also be used as the pressure-retaining valve to guarantee the water supply pressure of the main valves upper-stream.

Diaphragm actuated
Diaphragm actuated
1. Needle Valve 2. Check Valve 3. Stroke Switch 4. Solenoid Valve 5. Check Valve
Piston actuated
Piston actuated
1. Body 2. Ball Valve 3. Line 4. Pilot Valve5. Ball Valve

Dimensions

DN L D D1 n-d H
1.0Mpa 1.6 Mpa 2.5 Mpa 1.0Mpa 1.6 Mpa 2.5 Mpa 1.0Mpa 1.6 Mpa 2.5 Mpa
50 205 165 165 165 125 125 125 4-18 4-18 4-18 300
65 216 185 185 185 145 145 145 4-18 4-18 8-18 337
80 250 200 200 200 160 160 160 8-18 8-18 8-18 467
100 320 220 220 235 180 180 190 8-18 8-18 8-22 520
125 365 250 250 270 210 210 220 8-18 8-18 8-22 580
150 415 285 285 300 240 240 250 8-22 8-22 8-26 640
200 500 340 340 360 295 295 310 8-22 12-22 12-26 778
250 605 395 405 425 350 355 370 12-22 12-26 12-26 889
300 698 445 460 485 400 410 430 12-22 12-26 12-30 1010
350 787 505 520 555 460 470 490 16-22 16-26 16-30 1037
400 914 565 580 620 515 525 550 16-26 16-30 16-33 1264
450 978 615 640 670 565 585 600 20-26 20-30 16-36 1294
500 978 670 715 730 620 650 660 20-26 20-33 20-36 1324
600 1150 780 840 845 725 770 770 20-30 20-36 20-39 1600
700 1300 895 910 960 840 840 875 2430 24-36 24-42 1750
800 1450 1015 1025 1085 950 950 990 2433 24-39 24-48 1900

Typical Installation

Typical Installation of Pressure Reducing & Sustaining Control Valves with Downstream Surge Control