This gate  valve has three types:CS to ASTM, AS to ASTM, SS to ASTM 1) Design and manufacture : By ANSI .B16.34; API 602.
2) The length of the structure: By ANSI B16.10; JIS B2002
3) Size-end connectivity:
-150; 300 and 600 pounds according to the ANSI-class B16. 5(RF)
-10K according to JIS B2212; 20K according to JIS B2214; 30K& 40Kacccording to JIS B2215
4) Valve inspection and testing: By API 598
5) Structure: 
- B. B; OS& Y or W. B; OS& Y
- Necking (R, P) or the entire track(F, P)
6) Materials: By AISI/ASTM Provisions
7) The main material: A105; F5; F11; F22; 304; 304L; 316; 316L; LF2, etc.
Application of the medium: water, steam, oil, etc.