How can plastic pipes be connected to steel valves?
Valves, such as externally threaded valves, shall be internally threaded, with one end of which has an internal thread, and the other end of which is bonded to the plastic pipe.
PVC-U hard PVC plastic pipe: 1) the valve, such as the internal thread valve, should use the outer thread transition joint, the transition joint has an external thread at one end, and the other end is a plastic pipe can be bonded to the mouth.
Valve such as flange valve, then PVC-U pipe and valve connection should be flange connection. Connecting with the plastic pipe and flange with flange bonding, also can use hemmed or band.(2) connect the PP-R tube and the valve threaded valve valves such as: 1) is, should use external thread transition joints, the transition joints at one end of the external thread, the other end is connected with hot melt socket PP-R plastic pipe.2) the valve, such as the external thread valve, should use the internal thread transition joint, one end of the transition joint is internally threaded, and the other end is a socket which can be connected with the PP-R plastic pipe by hot melting.3) valve, such as flange valve, then PP-R pipe and valve connection should be flange connection. Connecting with the plastic pipe and flange can be used hot melt connection, flange can be used hemmed or band.(4) PE pipe, PB pipe and valve connection, method with PP-R tube.(5) the connection of PVC-C pipe, ABS pipe and valve, the way is the same as the PVC-U pipe.(6) PE-X pipe, PAP pipe, these two types of tubes, pipe specifications smaller, the pipe connection is card sleeve connection and compression connection, and the valve should be used to clamp or clamp sleeve transition joint.
