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Fakai Valve Factory Site: Yongxing Industrial Zone, Longwan District, Wenzhou City Tel: 0577-88767789
Fax: 0577-85983279
Mobile: 15958706338
Contact: Mr. Wang Email: 1552028357@qq.com
Website: http://klhqcm.com

H71H / W Wafer Lift Check Valve

H71H / W Wafer Lift Check Valve Structure
H71H / W Wafer Lift Check Valve Structure

Structural features

H71H / W-16 / 25Q / H / P Wafer Lifting Check Valve has the characteristics of compact structure. It is composed of valve body, disc and spring. The closing stroke is short, with spring preload to avoid water hammer. The wafer lift check valve has been widely used in water supply and drainage pipe networks in urban construction, industrial and high-rise buildings.

Product number

Model drawing of H71H Wafer Lift Check Valve

Parts material

model Valve 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

Performance parameter

model Nominal pressure
(MPa)
Test pressure (MPa) proper temperature
(℃)
Applicable medium
case seal
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 Corrosive media such as nitric acid
H71W-40H 4.0 6.0 4.4 ≤300 Water, steam, oil, etc.
H71W-40P ≤200 Corrosive media such as nitric acid

Dimensions

model 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