Gate valve features:
1) Size: NPS 1/ 2" - 36"
2) Pressure: class 150 - 1, 500
3) Material:
a) 1/ 2" - 2" : A105, LF2, F11, F22, F5, F304, F316, F304L, and F316L
b) 2" - 36" : WCB, LCB, ....