Unit Type:Equipment spec: Ball valves with pressure and temperature ratings shell material and more with seat, packing and gasket materials as seals are linked. Seal can be polymer materials, asbestos rubber seal material or t..
Unit Type:Equipment spec: The piston valve is closed by a combination of stainless steel pistons, fluctuation two elastic sealing and can keep up the metal frame fixed distance. The piston like as in two sealing stopper. Body ..