HQ41X sliding ball type check valve

product introduction Sliding ball type check valve'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 valve 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 valve'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   Material part body Ball Material Cast iron,ductile cast iron,cast steel coated with rubber main dimensionsunit:mm 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