BS1873 WCB/CF8/CF8M Y Pattern Globe Valve Conform to BS1873, and ASME B16.34.
They are tested according to API 598, and marked as per MSS SP-25.
1. Construction is as follows:
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- Regular Port
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- Outside Screw and Yoke(OS&Y)
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- Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet
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- Backseat
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- Solid Disc(Plug, Ball/Spherical, Throttling)
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- Butt Weld Ends to ASME B16.25
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- Flanged Ends to ASME B16.5 and B16.47 A/B
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2. Main Part & Materials
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Part Names
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Part Materials
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Cast Iron
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Ductile Iron
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Body
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A126 B
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GG 20
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FC 20
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A536
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A395
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GGG40
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GGG50
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FCD
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Bonnet
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A126 B
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GG 20
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FC 20
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A536
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A395
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GGG40
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GGG50
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FCD
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Wedge
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A126 B
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GG 20
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FC 20
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A536
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A395
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GGG40
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GGG50
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FCD
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Stem
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F6a/SS410/SS420/SS304/SS316
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Seat/Seat Ring
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NBR/EPDM/VITON
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Suitable Medium
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Water, Waste Water, Sewage
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Suitable Temperature
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-20~150 °C
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Main Part & Materials
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Part Names
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Part Materials
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Body
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WCB
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LCB
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WC6
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CF8
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CF8M
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CF3
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CF3M
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C83600/C95800
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Bonnet
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WCB
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LCB
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WC6
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CF8
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CF8M
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CF3
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CF3M
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C83600/C95800
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Disc/Ball/Wedge
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WCB
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LCB
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WC6
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CF8
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CF8M
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CF3
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CF3M
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C83600/C95800
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Stem
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F6a
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F304
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F6a
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F304
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F316
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F304L
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F316L
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C83600/C95800
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Seat/Seat Ring
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13%Cr
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SS304
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13%Cr
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SS304
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SS316
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SS304L
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SS316L
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C83600/C95800
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Packing
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Graphite/PTFE
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Gasket
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SS304+Graphite/SS304+Graphite
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Bolts/Nuts
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B7/2H
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L7/4
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B16/4
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B8/8
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B8M/8M
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B8/8
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B8M/8M
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B8M/8M
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Suitable Medium
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W.O.G etc.
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HNO3, CH3OOH etc.
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Sea Water etc.
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Suitable Temperature
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-29~425 °C
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-46~340 °C
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-46~340 °C
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-196~427 °C
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-196~427 °C
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-196~427 °C
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-196~427 °C
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-29~220 °C
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3. Normal Pressure Rating
PN10~PN420, CLASS150~2500
4. Normal Size Range
DN50~DN500, 2"~20"