700X Pump Control Valve

700X Pump Control Valve

Overview

700X pump control valve is installed at the pump's outlet in high building and other feeding system to prevent fluid flowing backwards. Before the pump stops, the valve closes 90% or so ahead to prevent water hammering and water hitting at the pump's instant stop; after the pump completely stops, the valve closes fully to prevent fluid flowing backwards at the outlet of the pump to protect the pump and prevent it from turning backwards due to backward flow of the fluid.

This is necessary protection equipment for the pump. It is flow-line designed and it can open or close to electric-magnetic valve's pilot. It is safe to use and it is easy to install and to maintain this kind of valve.

Performance

Nominal Pressure
(MPa)		 Shell Test
(MPa)		 Sealing Test
(MPa)		 Fluids Fluids Temp
(°C)
1.0 1.5 1.1 Water 0-80
1.6 2.4 1.76
2.5 3.75 2.75

Materials

Materials: Pump Control Valves
No. Part Material
1 Plug Alloy Bronze
2 Body Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
3 Seat 410 S.S. / SS 304 / SS 316
4 O-Ring NBR
5 O-Ring NBR
6 O-Ring Retainer Cast Iron
7 Stem 410 S.S. / SS 304 / SS 316
8 Disc Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
9 Diaphragm Rubber
10 Diaphragm washer Cast Iron
11 Nut Alloy Bronze
12 Ball valve Alloy Bronze
13 Spring Stainless steel
14 Cover Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
15 Pilot socket Alloy Bronze
16 Solenoid valve Alloy Bronze
17 One-way valve Alloy Bronze
18 On/Off  
19 Yoke Steel
20 Limitation piece Alloy Bronze
21 Plug Alloy Bronze
22 Metering 410 S.S.
23 One-way valve Alloy Bronze
24 Needle Valve Alloy Bronze
25 Nut Steel
26 Screw Steel
27 Ball valve Alloy Bronze
28 Pressure Gauge  
29 Connection Pipe Alloy Bronze

Dimensions

Dimensions of 700X Pump Control Valve
DNmm 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800
L 180 180 180 203 203 235 280 360 400 455 585 650 800 860 915 980 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 1070 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

Installation

Installation of 700X Pump Control Valve