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HQ41X sliding ball type check valves


Product introduction

Sliding ball type check valves's disc is a ball coated with rubber and dependant on the line pressure the ball can slide up and down in the integrated chute in the body to open or close the valves without any noise and water-hammering and good sealing capability The bore is full without any block so the flow rate is much with little resisting force and little pressure loss and water-head loss is 50% of swing check valves's.It can be installed vertically or horizontally and widely used in cold water's,hot water's,industry's and sewage's ppipeline and it is more for sewage submersible pump.

Main technical parameters

Nominal pressure: 1.0-1.6
Nominal diameter: 50-350mm
Service:water and weak corrosive fluid
Working temperature:0-80
Flanged end: GB/T17241.6 GB9113
Inspection and test: GB/T 13927 API 598

Typical installation diagram

part body Ball
Material Cast iron,ductile cast iron,cast steel coated with rubber

Main dimensions 


DN 50 65 80 100 125 150 200 250 300 350
L 180 200 260 300 350 400 500 600 700 800
D 185 210 245 280 335 400 495 600 715 820

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