Check Valve Series

Product drawing»

Structural drawing»

You are here:Home > Products >Wafer Lift Check Valve

Wafer Lift 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

Wafer lift check valves
Wafer lift check valves

Structural features

H71H/W-16/25Q/H/P wafer lift straight-through check valve has a compact structure feature, consists of body, disc, and spring, using wafer connection. And because the disc close stroke is short, with the spring pre-load, avoiding the phenomenon of water hammer. The valve has been widely used in the pipelines of urban construction, industrial and high-rise buildings water supply, drains networks.

Dimensions & constructral diagram

Wafer lift check valve constructral diagram(pic1)
Wafer lift check valve constructral diagram(pic1)
Wafer lift check valve constructral diagram(pic2)
Wafer lift check valve constructral diagram(pic2)

The materials of main parts

type body disc spring
H71H-16Q 、H71H-25Q QT400-15 25 50CrVA
H71W-25H、 H71W-40H 2Cr13 1Cr13 1Cr18Ni9Ti
H71W-25P 、H71W-40P ZG1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni9Ti

Main technical parameters

type nominal pressure (MPa) test pressure(MPa) suitable temperature (℃) applicable medium
shell sealing
H71H-16Q 1.6 2.4 1.76 ≤235 water, steam, oil,etc
H71H-25Q 2.5 3.75 2.75 ≤235
H71W-25H ≤300
H71W-25P ≤200 nitric acid and other corrosive media
H71W-40H 4.0 6.0 4.4 ≤300 water, steam, oil,etc
H71W-40P ≤200 nitric acid and other corrosive media

Main external dimensions

type nominal diameter DN(mm) L D
1.6 2.5 4.0
H71H-16Q H71H-25Q H71W-25H H71W-25P H71W-40H H71W-40P 15 25 48 48 48
20 31.5 58 58 58
25 35.5 68 68 68
32 40 80 80 80
40 45 90 90 90
50 56 105 105 105
65 63 125 125 125
80 71 140 140 140
100 80 160 165 165
125 110 190 195 195
150 125 215 225 225
200 160 270 285 290
250 200 330 340 350
300 250 385 400 415
Note: the matched flange is according to JB/T78-94 standard.
Shanghai Remy Valve Manufacturing Co., Ltd.
Remy check valve Contact Remy
Shanghai Enine Pump & Valve Co., Ltd.
Enine check valve Contact Enine
Shanghai Saitai Pump & Valve CO., Lid.
Saitai Check Valve Contact Saitai