Check Valve Series

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Butterfly Buffering 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

Butterfly buffering check valves
Butterfly buffering check valves

Principles and features

HH47, HH44XF, HDH47X butterfly buffering check valve is mainly used in the pump outlet of industrial water supply, sewage treatment plants, to prevent the pipe network medium reflux, eliminate the destructive water hammer automaticly, thus ensuring the pumps and pipes are not damaged. Butterfly buffering check valve consists of body, disc, buffering device and micro-regulating valve. Butterfly buffering check valve has a new structure, small size, small fluid resistance, smooth operation, reliable sealing, wear resistance, good buffering performance characteristics, H47X, HH47X, HH47H, H47XF, HDH47X butterfly buffering check valves are the best products of industrial water and urban sewage.

Technical parameter

nominal pressure:1.0~2.5MPa
nominal diameter:40~1400mm
medium: water,oil,sea water,sewage
suitable temperature:0~80℃(if needed,it can get to 200℃)
flange standard:GB/T 17241.6 GB/T9113
test standard:GB/T 13927 AP1598

Typical installation diagram

Butterfly buffering check valve typical installation diagram
Butterfly buffering check valve typical installation diagram

Dimensions & constructral diagram

Butterfly buffering check valve constructral diagram(pic1)
Butterfly buffering check valve constructral diagram(pic1)
Butterfly buffering check valve constructral diagram(pic2)
Butterfly buffering check valve constructral diagram(pic2)

Typical installation diagram

part name body disc Sealing ring stem packing
material Grey cast iron, carbon steel grey cast iron,cast steel,ductile cast iron nitrile oil resistant rubber, neoprene stainless steel PTFE

The external and connection dimensions

DN(㎜) 200 250 300 350 400 500 600 700 800 900 1000 1200 1400
L 230 250 270 290 310 350 390 430 470 510 550 630 710
H 550 630 690 780 860 980 1070 1220 1320 1430 1550 1800 1980
B1 540 600 650 710 770 900 1090 1200 1320 1420 1550 1780 2000
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