Size: Full bore & standard diameter DN50 (2 ") ~ DN 1,400 (56") 
 Pressure ratings: ANSI Class 150 ~ 2,500, PN 16 ~ 420 
 Operating temperature: -29 ℃ (-20 ℉) ~ +200 ℃ (392 ℉) 
 To adapt to the media: oil / gas, liquefied natural gas / liquefied petroleum gas, petrochemical, steel mills, heating pipes, etc. 
 Operation: lever, gear (vertical / horizontal), the electric 
 Standard features: 
 l entity structure with the butt & Flanged ends 
 mirror-polished stainless steel sphere l have to test the 
 l cushion spring preload to ensure low leakage valve operation closely and reduce the torque 
 l against the burst valve stem according to international standards 
 l Stem dry bearing, and metal self-lubricating coatings with PTEF capacity without additional lubricant 
 l floating or fixed ball valve 
 Select features: (upon request) 
 l self Seat 
 l vertical devices and longer stem 
 l special port and path 
 l Anti-static device 
 l Stem emergency grease can 
 l seat sealant lubricant and emergency equipment 
 l metal to metal seat sealing 
 l double-cut and emissions 
 l double piston effect seat 
 l graphite gasket with fire safety design 
 l sealed plastic polymer seat 
 l in the body cavity with a safety valve 
 l electroless nickel ball and stem 
 Material: 
 l Body: carbon steel ST37, A106-B, STPG 370, A105, ASTM A516-60, A216-WCB or equivalent. 304 or 316 stainless steel (on request selection) 
 l Ball: stainless steel 304 or 316 level 
 l Seat: Metal seat with a polymer ring, PTFE, RTFE, Viton, Nylon, Peek and so on.