Q361F full welded ball valve product overview Q361F all-welded ball valve will not have external leakage phenomenon, the seat is made of carbonized Teflon seal ring and coffee spring to adapt to changes in pressure and temperature, marking pressure and temperature range will not produce any Leak slip. Sphere processing process has advanced computer detector tracking test to the ball of high precision machining. As the valve body material with the same pipe material, there will be uneven stress, will not be due to earthquakes and vehicles through the ground when the deformation, the pipeline anti-aging. Seal ring body with content of 20% C (carbon) PTFE material to ensure complete leak-free. Q361F full welded ball valve Size: Full Diameter & Standard Diameter DN50 (2 ") ~ DN 1,400 (56") Pressure rating: ANSI Class 150 ~ 2,500, PN 16 ~ 420 Operating temperature: -29 ℃ (-20 ℉) ~ 200 ℃ (392 ℉) Adapt to the media: oil / gasoline, liquefied natural gas / liquefied petroleum gas, petrochemicals, steel mills, heating pipes, etc. Mode of operation: handle, gear (vertical / horizontal), electric Q361F full welded ball valve standard features Solid structure with butt & flange end Mirror polished stainless steel ball to be tested Preloaded seat cushion springs ensure tight cryogenic leaks and reduced valve operating torque In accordance with international standards against burst valve stem Stem dry bearings and metal with PTEF coating automatic lubrication ability, without additional lubricant Floating or fixed ball valve Select Features (Upon Request) Self-help valve seat Vertical device and lengthened stem Special port and path Antistatic device Stem emergency treatment of grease Seat lubricants and emergency sealant equipment Metal to metal seat seal Double cut and discharge Double piston action valve seat Safety and fire protection design with graphite gaskets Seat seal plastic polymer Body cavity with safety valve Ball and stem electroless nickel Q361F all-welded ball valve material Body: Carbon Steel ST37, A106-B, STPG 370, A105, ASTM A516-60, A216-WCB or equivalent. Stainless steel 304 or 316 (on request) Sphere: 304 or 316 stainless steel grade Seat: Metal seat with polymer seal, PTFE, RTFE, Viton, Nylon, Peek and more. Note: The above product introduction, parameters, pictures, data are for reference only Safety Goggle,Darkening Safety Goggle Prosper Industry And Trade Co., Ltd. , http://www.pxweldingmachine.com