Opening and closing parts by the media flow and power to open or close on their own, in order to prevent the backflow of the media called the check valve. Check valves are automatic valves, mainly for the medium one-way flow of the pipeline, allowing the media to flow in one direction, to prevent accidents.
Check valve according to the structure, can be divided into lift check valve, swing check valve and butterfly check valve three:
1. Lift check valve is divided into two kinds of vertical and horizontal.
2. Swing check valve is divided into a single type, double valve and valve type three.
3. Butterfly check valve is straight through.
More than four kinds of check valve in the form of connection can be divided into threaded connection, flange connection, welding connection and clip connection.
Size: DN40-DN600mm PN1.0-1.6MPa
Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel
Seat: EPDM, NBR, Stainless Steel
Stem: Stainless Steel
Spring: Stainless SteelFlange Connection: DIN, ANSI, BS, JIS, etc
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