H44W stainless steel check valve
Check: check valve also known as a one-way valve or check valve, and its role is to prevent the media back in the pipeline. Pump water off the bottom valve check valve also belongs to class.
Opening and closing pieces by medium flow and the forces to open or close, to prevent backflow valve media called check valve. Check valves are automatic valves, mainly for one-way flow of media channels, the only allowed media to flow in one direction, to prevent accidents.
Check valve according to the structure of division, can be divided into the lift check valve, swing check valve and butterfly valve three. Lift check valve can be divided into two types of vertical and horizontal. Swing check valve is divided into a single type, double valve and valve type three. Butterfly valve for the straight-through, the above non-return valve can be divided into connection, flange connection and welding of three threads in the connection form.
1 suitable medium: water, oil, steam.
2 temperature≤ 425 ℃.
3 test pressure of the valve and valve at various levels of temperature of the maximum working pressure.