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Descriptions
Construction:
3 Piece forged steel split body, full bore, trunnion mounted ball, independent ball and stem, anti-static design, cavity relieving seats, double block and bleed, designed according to API 6D.General Information :
General Design API 6D Face to Face ANSI B16.10 Flange Type ANSI B16.5 Rating Class 150, 300, 600, 900 & 1500 Sizes 2" through 16"
Standard Materials:
Body / Cap ASTM A105 Stem ASTM A276-410 Ball ASTM A105+Cr/ENP Seat PTFE Seat Retainer ASTM A105 -
A floating ball valve is a valve with its ball floating (not fixed by a trunnion) inside the valve body; it drifts toward to the downstream side and tightly pushes agains the seat under the medium pressure to ensure a reliable seal.The floating ball valve is a simple design with goog sealingperformance relying on the seat material to withstand the workload as the sealing pressure is barred by the seat ring. Floating ball valves are mainly used in low to mid level pressure applications.Cast Steel Floating Ball Valve
Technical SpecificationDesign and Manufacture : API 608, ISO 17292Face to Face/ End to End : ASME B16.10Flange End : ASME B16.5Test & Inspection : API 598
Main MaterialsWCB, LCB, CF8 (M), CF3 (M),A995 4A, A995 5A, A995 6A,Alloy 20, Monel, Inconel
Main Parts Material SheetNote : (1) The lenght of the bonnet extension of cryogenic valves shall be determined base on actual working temperature
Dimensions and Weights
Class 150
Class 300
Class 600
Floating Ball Valve Torque TableNote :The torque measuring and calculation is based on normal room temperature, when selected seat material is PTFE/ RPTFE for Class 150/ Class 300 and Nylon for Class 600.For low-temperature/ cryogenic service, the torque will increase 2 fold.When sizing the actuator, a safety factor of 1.3 - 1.5 times shall be applied.When the service or seat material is different than that specified above, the torque value will be different, it shall be subject to the conformation from the manufacturer.
Forged Steel Floating Ball Valve
Technical SpecificationDesign and Manufacture : API 608, ISO 17292Face to Face/ End to End : ASME B16.10Flange End : ASME B16.5Test & Inspection : API 598
Main MaterialsA 105, LF2,F304 (L), F316 (L), F51, F53, F55Alloy 20, Monel, Inconel
Main Parts Material SheetNote : (1) The lenght of the bonnet extension of cryogenic valves shall be determined base on actual working temperature
Dimensions and WeightsClass 150Class 300Class 600
Class 800,Class 1500 - Class 2500
Applicable Standards
Design and Manufacture : ISO 17292 (BS 5351)API 608ASME B16.34Connection EndSocket Weld End (SW) : ASME B16.11Threaded End (NPT) : ASME B1.20.1Butt-Weld End (BW) : ASME B16.25Test & Inspection : API 598
Main MaterialsA 105, LF2,F304 (L), F316 (L), F347, F321, F51,Alloy 20, Monel
Main Parts Material Sheet
Dimensions and Weights
Class 800 - Class 1500Note : Class 800 - Class 15003-Pc, Bolted Bonnet, Full Port, Threaded, Butt-Weld, Socket Weld,Design ISO 17292 (BS5351), API608, ASME B16.34
Class 2500Note : Class 25003-Pc, Bolted Bonnet, Full Port, Threaded, Butt-Weld, Socket WeldDesign ASME B16.34
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The ball on a trunnion ball valve does not move with medium pressure. Trunnion ball valves have floating seats. This valve uses pressure actuated seats with locked-in non-metallic face seals. To Assure tight sealing at low pressure, special springs force the seats against the ball. At higher pressure, the upstream seat is forced against the ball by the pressure working across the differential between the area of the seat insert and the seat O-Ring. The higher the pressure, the tighter the seal.Cast Steel Trunnion Ball ValveTechnical SpecificationDesign and Manufacture : API 6DFace to Face/ End to End : API 6D, ASME B16.10Flange End : ASME B16.5, ASME B16.47Butt-Welding End : ASME B16.25Test & Inspection : API 6D, API 598Main MaterialsWCB, LCB, CF8(M), CF3(M)A995 4A, A995 5A, A995 6AAlloy 20, Monel, InconelMain Parts Material SheetNote : The Length of the bonnet extension of cryogenic valves shall be determined base on actual working temperature.This will be omitted in the future design upgrade and changes.Dimensions and WeightsClass 150Class 300Class 600Class 900Class 1500Trunnion Ball Valve Torque TableNote :The torque measuring and calculation is based on normal room temperature, when selected seat material is PTFE/ RPTFE for Class 150/ Class 300 and Nylon for Class 600.For low-temperature/ cryogenic service, the torque will increase 2 fold.When sizing the actuator, a safety factor of 1.3 - 1.5 times shall be applied.When the service or seat material is different than that specified above, the torque value will be different, it shall be subject to the conformation from the manufacturer.Forged Steel Trunnion Ball ValveTechnical SpecificationDesign and Manufacture :API 6DFace to Face/ End to End :API 6D, ASME B16.10Flange End :ASME B16.5, ASME B16.47Butt-Welding End :ASME B16.25Test & Inspection :API 6D, API 598Main MaterialsA105, LF2, F304 (L), F316 (L),F51, F53, F55Alloy 20, Monel, InconelMain Parts Material SheetsNote : (1) The length of bonnet extension of cryogenic valves shall be determined base on actual working temperature.Dimensions and WeightsClass 150Class 300Class 600Class 900Class 1500Class 2500
Showing posts with label Ball Valve. Show all posts
Showing posts with label Ball Valve. Show all posts
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