Standard features:
1)norminal diameter: DN15 ~ 1200(NPS½"-48")
2)pressure: PN 16 ~ 420(Class 150lbs-2500lbs)
3)suitable temperature: -28℃(-18.4℉)~300℃(572℉)
4)suitable medium,: for petroleum, liquefied natural gas/liquefied petroleum gas, petrochemical engineering, Iron and steel plants, heat supply pipeline.
5)operation mode: Lever, gear,(vertical/horizontal), electric driven, worm gear
6) linkage mode: welding,flange
Standard: API, ANSI, BS, DIN, JIS, etc.

material:
body: WCB ST37.0 , A106-B, No20
ball: stainless steel 304 or 316
stem: 2Cr13
sealing of stem: whole Fluorine rubber
ball sealing: RTFE(PTFE+C)