Product name: Low temperature cast steel flange trunnion ball valve
Product category: bolted flange side mounting structure
Product model: DBB-Q347F
Nominal pressure: 1.0 ~ 42.0(Mpa), 150 ~ 2500(Class)
Diameter range: DN10 to DN600
Connection form: Flange RF/RJ, butt welded BW
Transmission mechanism: worm gear, pneumatic, electric
Operating temperature: high temperature 450°, low temperature -196°
Main materials: carbon steel WCB/ low temperature steel LCB, austenitic stainless steel CF8/CF8M, super duplex stainless steel 4A.5A.6A, nickel alloy steel and other special grade materials.
Sealing surface of valve seat: PTFE, RPTFE, PEEK.DEVLON, STL
Packing seal: V-type PTFE, flexible graphite Applicable medium: C: water, oil, vapor P: nitric acid R: acetic acid chemical industry, petroleum, natural gas, metallurgy, and other industries and hydrogen sulfide medium, impurities, serious corrosion of natural gas pipeline.
Product description: Three-piece connection forged steel fixed ball valve, the valve body is divided into three parts along the vertical section of the axis of the valve channel in the two seat parts, the whole valve is symmetrical along the central axis of the valve stem, it is mainly used in the pipeline to cut off, distribute and change the direction of media flow. Its large pivot structure is accurate in the center of the ball under high pressure, so that the valve has good operating performance; The standard valve seat adopts spring structure to push the valve seat to the ball, which has good bidirectional sealing performance. Using the built-in discharge valve, the body cavity can be discharged outward; The pivot adopts anti-blowout protection structure to effectively prevent leakage; Low friction coefficient bearing, so that the torque is reduced to a small, easy to open and close the valve; The effective contact between the valve stem and the valve body makes the anti-static grounding device superior in performance. It has the advantages of excellent performance, high performance, wide use and reasonable price.
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