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HQ45X Micro-Resistance Ball Type Check Valve
Micro-resistance ball type check valves's disc is a ball coated with rubber and dependant on the line pressure the ball can roll in the chute in the body to open or close the valve without any noise and water-hammering and with good sealing capability.The flow rate is much with little resisting force and little pressure loss.It can be installed vertically or horizontally and widely used at the outlet of pump in cold waters,hot waters,industrys and sewages pipeline system. Main technical parameters Nominal pressure: 1.0-1.6Nominal diameter: 50-1000mmService:water and weak corrosive fluid Working temperature:0-80Flanged end: GB/T17241.6 GB9113Inspection and test: GB/T 13927 API 598
Material
| part | body | disc | spring | seat |
| Material | Cast iron ductile cast iron,cast steel | Cast copper,stainless steel | Stainless steel | Copper,steel |
Main dimensions DN50-DN800 unit:mm
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
| L | 203 | 216 | 241 | 292 | 330 | 356 | 495 | 622 | 698 | 781 | 914 |
| H | 180 | 210 | 225 | 245 | 280 | 320 | 380 | 450 | 470 | 500 | |
| H1 | 510 | 570 | 640 | 715 | 815 |
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HQ45X Micro-Resistance Ball Type Check Valve
