API 6D Lift Check Valve

Body Material: Carbon steel, Stainless steel, Alloy steel.  
Normal diameter: DN15~DN400.
End connection: BW, Flanged. 
Pressure range: 150lbs~2500lbs (PN16~PN420). 
Working temperature: -196ºC~+560ºC. 
Feature: Pressure sealed cover, Lift piston type disc, applied widely, rapid closing and flexible actions of the disc, small closing impact, water hammer is now liable to be generated.