Unitized check valve

摘要: A unitized check valve for use with corrosive fluid includes a generally cylindrical body. seat is disposed in the body and first set of angularly spaced apart arcuate flanges depends from outlet end. disk coaxially associated adapted axial movement to block unblock aperture order control flow through retainer has second flanges. The one sets extend radially inwardly other outwardly. are positionable between adjacent ones set. coil spring bears against responsive fluctuations on thereby permitting disk. Alignment rotation causes be engaged preventing displacement so maintain operative condition.