a) multi-threaded end-turn valves, check valves and ball valves with female tapered threads are the ANSI used with pipes up to 2 1/2 “or 3″.

b) welding valves range for the direct connection of multi-turn brass valves, check valves and ball valves up to 3 “copper tubing. should be careful not to overheat and damage the valves during welding.

c) The flanged end connections are the most common design used for the installation of iron multi-turn valves 2 “and larger.

d) Wafer and lug body styles are used with dampers and valves height / double door verification for quick and easy installation between two flanges. e) the slotted end ball, butterfly and check valves allow the size of the quickest installation of 2 “and larger.