金属硬封球阀门

Specification: Nominal diameter: DN15-DN100 (NPS1/2-NPS4) Nominal pressure: PN16-42Mpa Class (900Lb-2500Lb) Body material: A105, A182-F11, A182-F22, A182-F91ect. Connecting type: Welding Structural length: GB/T12224, ANSI B16.10 Working temperature: -29-650°C(depends on the material) Welding bevel: GB/T12224\ ANSI B16.25 Driving maens: Manual, pneumatic, Electrical driving and Worm gear. Features: 1.The spray technique ia adopted to make the seal very hard that endures the high temperature and wears resisitance and has longevity of service. 2.The spring material is the alloy which is high temperature resistant and corrosion resistant and is anti-fatigue. 3.Adopt the design which ia against the blowing out. And it is safe and raliable. 4.The one-to-one precise grind is used between the body and the seats. The precision is high whithout leakage.