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Ball valve 4in 900LB RF flange end


CSV sample photo:

Ball valve 4" 900LB RF flange end, side entry trunnion mounted type body


Material: ASTM A218 WCB

Face to face dimension: 457mm

Valve standard: API6D

Flange standard: ASME B16.5

Maching tolerance control: GB/T 1804


CSV  trunnion ball valve

The trunnion ball valve is used for cutting or connecting the medium in various pipelines of class150-class2500 and pn16-pn320. It can be suitable for various media such as water, steam, oil, liquefied gas, natural gas, coal gas, nitric acid, acetic acid, oxidizing media, urea and etc. It is widely used in such industries as chemical industry, petroleum, natural gas, metallurgy and etc. The driving modes of the trunnion ball valve include worm and worm gear driving, manual driving, pneumatic driving and electric driving. The trunnion ball valves generally adopt flange connection, and butt-welding connection is also adopted. The seat can be soft seal seat or metal hard seal seat.

Describes the design and product range: 
◇ Design basis and product range: API6D/API608/GB/T12237
◇ Face-to-face dimension: ASME B16.10/GB/T12221
◇ Flanged ends: API605/ASME B16.47/GB/T9113
◇ Butt-welding ends: ASME B16.25/GB/T12224
◇ Wall thickness: ASME B16.34
◇ Fireproof test: API607
◇ Inspection and test: API6D/API598 JB/T9092
◇ Product range: 4"~64", DN100~DN1600
◇ Materials of main parts: WCB, LCB, WC6, WC9, CF8, CF8M
◇ Seat materials: PTFE, RTFE or metal hard seal

Design features: 
◇ ISO5211 platform design is adopted for the convenience of installing the actuator
◇ Double block and bleed function
◇ Anti-blow-out stem design
◇ The pressure balancing hole is provided on the steel ball
◇ The body is provided with a device for cleaning the valve cavity
◇ Automatic pressure relief function
◇ Fireproof and antistatic design
◇ Sealant injection system for emergency seal
◇ Multiple driving modes facilitate the realization of automatic control
◇ Reliable stem seal and low operating torque. Metal hard seal seat can be made according to requirements