Welding Gate Valve. Design and Manufacture API 600. The popularity of welded connections in piping systems means that valves must have the proper end connections for weld attachment.
Welding ends for valves for carbon steel pipes are very common in many industrial applications - as pointed out earlier in this thread its beneficial when the fluid is hazardous or toxic as well as for saving weight in the line which can translate into reduced costs for supports over the course of the system during installation must be weighed against maintenance needs of course. 12 Gate Valve. ANSIASME B1611 Thread.
UNE EN ISO 10434 Bolted bonnet steel gate valves for petroleum petrochemical and allied industries API 6D.
Since the valve body is compact having a short end-to-end dimension any extended welding time could cause excessive heat build-up on the valve seat area. They are pressed into the valve body and wedged into place forming a seal with the body. Threaded-end gate valves may be used in air gaseous or liquid systems. Wedge Gate Valves.