Swing Swing Check Valve Pressure Seal - ASME | Valvosider Valvosider Swing Check Valve Pressure Seal - ASME | Valvosider The Swing Check Valve Pressure Seal by Valvosider is designed according to ASME standards, offering reliable performance in various pressure classes and sizes. It is available in pressure classes 600, 900, 1500, and 2500, with sizes ranging from 2" to 24" for classes 600, 900, and 1500, and 2" to 12" for class 2500. The corresponding figure numbers for... View