DK-LOK USA - VBV Series Bleed Valves

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Design and Applications

D-Pro VBV Series Bleed Valves are designed to vent the signal line pressure to atmosphere before an instrument is removed and to assist in calibration of control devices. These are for use on instrumentation devices such as gauge root valves and multi-valve manifolds. Optional barbed vent tube enables containment of fluid vented. The V BV Series a re a lso i deal in b leeding h ydraulic systems.

Installation and Operation

Position the vent tube so that system fluid is not directed to personnel operating. Slowly open the valve. This valve has no s tem seal packing; s mall amounts of fluid will go through the stem thread when they are opened. Therefore suitable measures should be taken to protect personnel operating.

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Unit of Measure

Items	VBV-M-2N-S VBV Series Bleed Valves	VBV-M-4N-S VBV Series Bleed Valves	VBV-M-6N-S VBV Series Bleed Valves	VBV-M-8N-S VBV Series Bleed Valves
End Connection Inlet x Outlet	N/A 1/8" Male NPT x 3/16" O.D. Tube Stub	N/A 1/4" Male NPT x 3/16" O.D. Tube Stub	N/A 3/8" Male NPT x 3/16" O.D. Tube Stub	N/A 1/2" Male NPT x 3/16" O.D. Tube Stub
Series	N/A VBV
Handle	N/A Standard
Valve Body Material	N/A Stainless Steel 316
Temperature Rating	N/A -54 to 454°C (-65 to 850°F)
Pressure Rating at 38 ºC (100 ºF)	N/A 689 bar (10000 psig)
Barbed Vent Tube	N/A None
Orifice	N/A 3.2 mm
Cv	N/A 0.25
L	N/A 34.0 mm	N/A 34.0 mm	N/A 37.3 mm	N/A 37.3 mm
L1	N/A 23.9 mm	N/A 23.9 mm	N/A 26.2 mm	N/A 26.2 mm
D	N/A 19.1 mm	N/A 17.5 mm	N/A 19.1 mm	N/A 17.5 mm
h-Hex	N/A 15.9 mm	N/A 15.9 mm	N/A 22.2 mm	N/A 22.2 mm