●Cast Swing Check Valve Construction and Function 
● Full Port & Standard Port Design 
● Bolt Cover 
● Internally Assembled Hinge Pin 
● Renewable Seat 
“The valve seat of Cast Swing Check Valve produced by CEPAI is made of forged steel, and the sealing surface of valve seat can be overlaid with cemented carbide according to client requirements.

When cast swing check valve ≤10 “”, separate threaded valve seat or welded valve seat can be used, and for cast swing check valve ≥12″”, only welded seat structure can be used.

When the shell material of the Valve is stainless steel, Cast Swing Check Valve generally adopts the integral or hardalloy surfacing on the body to directly process the seat. If required by users, the stainless steel cast swing check valve seat can also be used with separate threaded seat or welded seat.” 
● Body and Cover connection & Gasket 
Cast Swing Check Valve produced by CEPAI adopts bolted bonnet structure and composite gasket and wound gasket structure when pressure Class150 ~ Class900.For pressure Class1500 ~ Class2500,the pressure self-sealing bonnet structure is adopted, and the metal ring gasket structure is used for the gasket. 

●Cast Swing Check Valve Main Parts & Material List 
Body/Bonnet WCB,LCB,LCC,WC6,WC9,CF8,CF8M,CD4MCu,CE3MN,Cu5MCuC,CW6MC; 
Seat A105N,LF2,F11,F22,F304,F316,F51,F53,F55,N08825,N06625; 
Disc A105N,LF2,F11,F22,F304,F316,F51,F53,F55,N08825,N06625; 
Pin F6,F304,F316,F51,F53,F55,N08825,N06625; 
Gasket SS+Graphite,PTFE,F304(RTJ),F316(RTJ); 
Bolt/Nut B7/2H,B7M/2HM,B8M/8B,L7/4,L7M/4M; 

●Cast Swing Check Valve 
Cast Swing Check Valve produced by CEPAI is mainly used to block or connect the medium in the pipeline. Choose Cast Swing Check Valve of different materials can be used for water, steam, oil, liquefied gas, natural gas, gas, nitric acid,carbamide and other medium.