American Standard high-pressure forged steel ball valve to create professional-quality fixed I. Product Overview: ????? Q347H forged steel ball valve fixed valve seat portion in two along a straight axis of the valve channel cross-section is divided into three somewhat, the entire intermediate shaft along the valve stem symmetrical, it is mainly used to intercept in the pipeline, distribution and change the direction of medium flow. Its large pivot structure ensures precise ball under high pressure in the middle position, the valve ensures excellent operating functions; specification seat selection stretched spring structure, the seat for the ball, make sure that the outstanding import and export bi-directional sealing function; use self discharge valve with the valve body cavity can be discharged outwardly; pivot selection anti-blowout maintenance of the structure, usefully prevent leakage; bearing low friction coefficient, making the torque reduction to a minimum for easy opening and closing valve; valve stem Useful touch, make for excellent anti-static grounding device and so on. This product was used in chemical, petroleum, natural gas, metallurgy and other professional and hydrogen sulfide-containing media, impurities, corrosion serious long distance gas pipelines. Second, product characteristics: 1, with a minimum flow resistance; ?? 2 ,? structure simple, small size, light weight, equipment and concise. ?? 3 ,? close securely. It has two sealing surface, and its valve sealing surface when data is widely used kinds of plastic, sealing, and can achieve complete seal, but also both a certain corrosion resistance. ?? 4. ?? convenient operation, opening and closing quickly, from fully open to fully closed just rotate 90 °, easy remote control actuator. ?? 5 ,? repair facilities, valve structure simple, seals are generally activities, the removal and replacement parts all comparison convenience. 6 ??, ?? in the fully open or fully closed, the sealing surface and the dielectric isolation ball and seat, through the media, the media does not lead to corrosion of the valve sealing surface. ?? 7 ?? broad range of applications, from small to a few millimeters in diameter, large meters, from high vacuum to high pressure can be applied. ?? 8 ,? because there wiping ball in the opening and closing process, it can be used for media with suspended solid particles. Third, the technical parameters: test pressure (Mpa) Nominal pressure (Mpa) pressure level (Class) 1.6 2.5 4.0 6.4 10.0 16.0 25.0 150 300 400 600 900 1500 2.4 3.8 6.0 9.6 strength test 15.0 24 37.5 3.1 7.8 10.2 15.3 23.1 38.4 seal test 1.8 2.8 4.4 7.0 2.2 5.6 7.5 11.0 17.6 27.5 11.2 16.8 28.1 0.5-0.7 airtight test temperature PTFE≤150 ℃ ?? PPL≤300 ℃ ??? Medium C: water, oil, steam ??? P: Nitric acid (temperature ≤200 ℃?) ???? R: acetic acid type (temperature ≤200 ℃?) Fourth, the main part parameters:? Part title Profile Profile Code C L P R valve bonnet WCB ZGOOCr17Ni14Mo2 (CF3M) ZG1Cr18Ni9Ti (CF8 ) ZG1Cr18Ni12Mo2Ti (CF8M) sphere 2Cr13 ZGOOCr17Ni14Mo2 (CF3M) ZG1Cr18Ni9Ti (CF8) ZG1Cr18Ni12Mo2Ti (CF8M) stem 2Cr13 316L 1Cr18Ni9Ti (304) 1Cr18Ni12Mo2Ti (316) seat sealing surface PTFE, carbon fiber + PTFE, PPL stud nut to 35 ? 35CrMoA (B7)? 45 (2H) 2Cr13 (420)? 1Cr18Ni9? 1Cr17Ni2 (431) packing V type PTFE, flexible graphite