BNSV Three in one check valve
Overview
The three in one check valve is generally installed in the water supply and drainage and cooling water treatment of buildings and factories, the condensate water of the boiler, and the pump outlet of the secondary water supply pipeline, which is used to prevent the medium backflow in the pipeline caused by the pump stop operation.
● With one valve, three functions can be successfully completed: check valve, stop valve and throttle valve.
● When the pump stops running, the spring force closes the valve disc first, thus preventing water hammer.
● The output of the pump can be adjusted by adjusting the opening.
● It is equipped with an indicator to confirm the opening degree of the valve with eyes.
● The gasket is made of rubber, which will not leak and can absorb the impact force.
● The spring material is stainless steel, so it has strong corrosion resistance.
● The shape and structure of the valve body are streamlined, so the pressure drop is very small.
● It can be installed on both horizontal and vertical pipelines.
Parts | Body、Body | Stem | Disc | Seal ring | Spring | Nuts of stem |
Material | Ductile iron QT450-10 | Stainless steel 304 | Ductile iron QT450-10 | EPDM | Stainless steel 304 | Copper steel |
