Check Valve Series

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Flange Lift Ammonia 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

H41N flange lift ammonia check valves
H41N flange lift ammonia check valves

Product features

This valve disc uses fluid pressure difference and its own weight to achieve lift, is applied to most horizontal pipes, auto-stops media reflux, protects the upstream equipment.

Main design parameters

design, manufacture:GB/T12237-89
flange connection:JB/T79-94、GB9113-2000
face to face dimension:GB12221-89
nominal diameter:DN15~DN200mm
nominal pressure:PN1.6、2.5、4.0MP

Dimensions & constructral diagram

H41N flange lift ammonia check valve constructral diagram
H41N flange lift ammonia check valve constructral diagram

Main performance parameters

nominal pressure shell test sealing test applicable medium suitable temperature
2.5 3.75 2.75 ammonia, natural gas,etc -40~+80℃
4.0 6.0 4.4

The materials of main parts

body, bonnet disc sealing surface
WCB carbon steel stainless steel and nylon

Main external dimensions

nominal diameter DN(mm) H41N-25 type main dimensions(mm) weight
L D D1 D2 b f Z-фd H D3 (kg)
15 130 95 65 45 16 2 4-14 100 - 5
20 150 105 75 55 16 2 4-14 105 - 7
25 160 115 85 65 16 2 4-14 115 100 9
32 190 135 100 78 18 2 4-18 120 120 10
40 200 145 110 85 18 3 4-18 140 135 15
50 230 160 125 100 20 3 4-18 150 150 20
65 290 180 145 120 22 3 8-18 160 175 25
80 310 195 160 135 22 3 8-18 175 200 32
100 350 230 190 160 24 3 8-23 200 230 57
125 400 270 220 188 28 3 8-25 230 273 -
150 480 300 250 218 30 3 8-25 265 330 -
200 600 360 310 278 34 3 12-25 300 365
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