Check Valve Series

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300X Slow Off Check Valve

manufacturer: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 86 (21) 3652 8716
Mob: (86) 138 1635 6498

product drawing

300X slow off check valves
300X slow off check valves

Product introductions

300X slow off check valve is an intelligent valve that installed in water pump outlet of high-rise building water supply systems and other water supply systems, to prevent the media backflow, water hammer and water impact phenomenon. The valve combines three kinds of functions of electric valve, check valve and water hammer eliminator, can effectively improve the safety and reliability of water supply systems, and make the technology and principles intergrally of slow open, fast closing, slow closing to eliminate water hammer, to prevent the production of open-pump water hammer and closed-pump water hammer. Just operating the pump motor’s hoist button, the valve can automatically open and close in accordance with pump operating procedures, with large flow and small pressure loss.

Dimensions & constructral diagram

300X slow off check valve constructral diagram
300X slow off check valve constructral diagram

Main dimensions

nominal diameter DN(mm) dimensions(mm)
L A1 A H1 H F
20 150 200 282 106 172 116
25 160 200 282 106 172 116
32 180 200 282 106 172 116
40 200 210 320 137 225 168
50 203 210 320 137 225 168
65 216 215 330 145 270 180
80 241 220 330 178 289 210
100 292 230 410 232 375 284
125 330 245 420 286 420 310
150 356 260 420 318 450 370
200 495 280 430 413 722 463
250 622 300 450 502 769 525
300 698 320 460 600 906 625
350 787 340 470 637 1480 705
400 914 360 480 677 1027 778
450 978 360 480 677 1027 778
500 978 410 780 750 1110 690
600 1230 456 888 850 1286 785
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