Valve is to control the media flow and circulation opening and closing pieces, the entire valve structure plays a vital role, it can also be passed through a turbine lever operated, pneumatic, electric and other equipment operation. The quality of valve determines the overall performance of the valve, the valve seat in contact with the plastic surface of the formation determines the degree of tightness of the valve or bad.
 Flap valve materials are: ductile iron, stainless steel, aluminum, bronze, etc.
Valve flap structure are: Through shaft without pin, midline and double axle, etc.
Colors are: silver, bronze, red, blue, etc.
Size: 2 "-24"
Ductile iron is processed by a ball and bred to obtain a spherical graphite cast iron effectively improve the mechanical properties, in particular to improve the ductility and toughness, but also to obtain high strength than carbon steel.