main parts and materials
Body
Valve Plate
Valve Shaft
Lining
Ductile Iron
Ductile Iron
Stainless Steel 420
EPDM
Cast Steel
Stainless Steel304/316/316L
Stainless Steel 316
NBR
Stainless Steel
Aluminium Bronze
Stainless Steel 316 L
PTFE
Dual Phase Steel
Else
Else
VITON Else
Else
Else
Main Outer Size
Inch
DN
φA
φB
D
E
F
1
Note
...
Product structure characteristics
A check valve is an “automatic” valve that is opened for downstream flow and closed for counter-flow.Open the valve by the pressure of the medium in the system, and close the valve when the medium flows backwards.The operation varies with the type of check valve mechanism.The most common types of check valves are swing, lift (plug and ball), butterfly, check, and tilting disc.Products are widely used in petroleum, chemical, pharmaceutical, chemica...