Manual Flanged Casting B.B Globe Valve

Manual flange castings B.B globe valves are mandatory seal valves, so when the valve is closed, pressure must be applied to the valve flap to force the seal face to leak. When the shut-off valve is opened, when the opening height of the valve flap is 25% to 30% of the nominal diameter, the flow rate has reached the maximum, indicating that the valve has reached the fully open position. Therefore, the full open position of the shutoff valve should be determined by the stroke of the valve flap.

Product Details

Products Description :

Product Specifications :

Class (Lbs)	Test Pressure (MPa)
	Shell Test		Water Sealing Test		Air Sealing Test		Back Sealing Test
150	3.1		2.2		0.6		2.2
300	7.8		5.6		0.6		5.6
Material	A216 WCB	A217 WC6, WC9		A351 CF8	A351 CF3	A351 CF8M		A351 CF3M
Temperature℃	≤425	≤550		≤150
Medium	Water, Oil, Gas etc.			Nitric Acid		Acetic Acid

Standard

Items	Design & Manufacture	Test & Inspection	Pressure - Temp. Rating	Flange Dimension	Face to Face Dimension
Standards	API 600 BS 1873	API 598	ANSI B16.34	ANSI B16.5	ANSI B16.10 ANSI B16.25

Material

Part Name	Material
Body/Bonnet/Disc	A216 WCB	A217 WC6, WC9	A351 CF8	A351 CF3	A351 CF8M	A351 CF3M
Sealing Face	13Cr/13Cr 13Cr/Stellite Stellite/Stellite	Stellite/Stellite	SS304/SS304 SS304/Stellite Stellite/Stellite	SS304L/SS304L SS304L/Stellite Stellite/Stellite	SS316/SS316 SS316/Stellite Stellite/Stellite	SS316L/SS316L SS316L/Stellite Stellite/Stellite
Stem	F6a	F11, F22	F304	F304L	F316	F316L
Gasket	SS304/Flexible Graphite			SS304L/Flexible Graphite	SS316/Flexible Graphite	SS316L/Flexible Graphite
Packing	Flexible Graphite+SS304	Flexible Graphite + Ni Wire	Flexible Graphite+SS304	Flexible Graphite + Ni Wire
Bolt	A193 B7	A193 B16	A193 B8
Nut	A194 2H	A194-4	A194-8

Application

It is widely used in food, medicine, petroleum, chemical, natural gas, steel, environmental protection, papermaking and other transportation pipelines to cut or circulate media.

The structures of Wheel handle Globe Valve:

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