Micro resistance slow close butterfly check valve
Place of Orign :China
Product name: Micro resistance slow close butterfly check valve
Product Presentation: This valve is a safety device mounted in the pipeline or pump outlet to prevent the pump from inversed running due to the differential water hammer’s shock in the pipeline when the pump stops. And it features by the brand-new structure, small fluid resistance, reliable seal, stable open-close, long duration, better energy-saving effect. Suitable for the pipeline related to the systems of water supply and drainage, fire-fighting, warming etc. or the pump outlet to prevent both pump and pipeline from being damaged due to the water hammer produced when the medium flows back and from the silencing effect. |
Performance specification:
DN | 1.0 | 1.6 | Mpa |
shell test | 1.5 | 2.4 | |
sealing test | 1.1 | 1.76 | |
applicable temperature | ≤100 | 鈩 | |
applicable medium | water.,sea water etc. | ||
slowly-closing time | 6 below 60s adjustable |
Main parts materials
part name | material |
body | gray cast iron/ductile iron |
butterfly plate | cast iron |
stem | SS |
packing | SS |
sealing ring | EPDM |