Check Valve Series

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Flange Ball 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

HQ44X flange single ball check valves

HQ44X flange single check valves
HQ45X flange double ball check valve
HQ45X flange double ball check valve

Usages and features

HQ44X flange single-ball tiny drag check valve, HQ45X flanged double ball tiny drag check valve are based on the rubber wrapping ball as disc, and their theory is scrolling front and back in the chute of the body under the effect of the media, and thus to achieve open or close the valve. The main characteristics of both valves are: large flow, small resistant pressure loss, good sealing performance, muffler closure can reduce the water hammer wave. They can be horizontal or vertical installation. Tiny drag ball cehck valve can be used in the outlet of pumps for cold water, hot water, industrial and sewage pipe network, to prevent the media backflow.

Dimensions & constructral diagram

HQ44X flange single ball check valve constructral diagram

HQ44X flange single ball check valve constructral diagram
HQ45X flange double ball check valve constructral diagram
HQ45X flange double ball check valve constructral diagram

Main technical parameter

type nominal pressure (MPa) shell test pressure(MPa) sealing test pressure(MPa) body material ball material
HQ44/45-10 1.0 1.5 1.1 cast iron carbon steel packed with rubber
HQ44/45-16 1.6 2.4 1.76

Main external dimensions

HQ44X-10/16 external dimensions
nominal diameter 50 65 80 100 125 150 200 250 300
L(mm) 250 280 310 350 400 450 550 650 750
H (mm) 180 210 225 245 280 320 380 450 510
connection dimension flange connection dimension PN1.0Mpa accordng to GB4216.4-84;PN1.6MPa according to GB4216.5-84

Main external dimensions

HQ45X-10/16\external dimensions
\nominal diameter 200 250 300 350 400 450 500 600 700 800 900 1000
L(mm) 550 650 750 850 950 1050 1150 1350 1450 1650 1900 2100
H (mm) 510 570 640 715 815 825 980 1155 1260 1350 1660 1700
\connection dimensions \flange connection dimensionPN1.0Mpa accordng to GB4216.4-84;PN1.6Mpa accordng to GB4216.5-84
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