Low Resistant Slow Closing Butterfly Silence Check Valve
Low Resistant Slow Closing Butterfly Silence Check Valve
Low Resistant Slow Closing Butterfly Silence Check Valve
China Silence Butterfly Check Valve manufacturer Xinhai offers Slow Closing Low Resistant Butterfly Check Valve, cast iron/carbon steel, DN200-DN1400.
Low resistant slow closing butterfly silence check valve is ideal valves for the drainage system in city or industries, for its advantages of novel structure, small volume, low fluid resistance, reliable seal and wearing resistance, etc.
Low resistant slow closing butterfly silence check valve is installed at the exit of water pump to avoid refluence of medium and eliminate destructive water hammer, ensuring safety. The check valve consists of body, disc, cushion and micro regulating valve.
| Model No.: HH48X | Nominal Diameter: 200MM-1200MM | Pressure: 1.6MPA -10MPA |
| Connection type: flange | Operation : automation | Function: avoid refluence and water hammer |
| Applicable Medium: water | Materials: Cast iron HT200, Carbon Steel WCB | Standards: Chinese JB Standards or Customized Standards |
Components Materials：
| Components | Body | Disc | Seal ring | Stem | Packing |
| Materials | Gray cast iron, carbon steel | Gray cast steel, carbon steel, ductile cast iron | duprene rubber , acrylonitrile-butadiene rubber | Stainless steel | Politef |
Main Dimensions：
| Nominal Diameter | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 | 1200 | 1400 |
| L | 230 | 250 | 270 | 290 | 310 | 330 | 350 | 390 | 430 | 470 | 510 | 550 | 630 | 710 |
| H | 550 | 630 | 690 | 780 | 860 | 910 | 980 | 1070 | 1220 | 1320 | 1430 | 1550 | 1800 | 1980 |
| B1 | 540 | 600 | 650 | 710 | 770 | 830 | 900 | 1090 | 1200 | 1320 | 1420 | 1550 | 1780 | 2000 |
| B2 | 600 | 700 | 740 | 800 | 870 | 920 | 1000 | 1250 | 1360 | 1480 | 1580 | 1700 | 1950 | 2175 |
