Piston Piston Check Valve Type class 800 Piston type and S.W ends - 2234S | Genebre Piston Check Valve Type class 800 Piston type and S.W ends - 2234S | Genebre The Piston Check Valve Type Class 800, model 2234S by Genebre, is a high-performance valve designed for industrial applications. It features a piston-type mechanism that ensures reliable flow control and prevents backflow. The valve is constructed to withstand high pressure, suitable for Class 800 specifications. It comes with socket weld (S.W) ends,... View Socket Weld PN 140 DIN ASTM A105N Stellite