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Bleed/Purge Valves
bleed-purge-valves
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. VBV-Series-Bleed-Valves.jpg
D-Pro VPV Series Purge Valves are designed for manually bleeding, venting, or draining system fluids. The cap is clamped to the valve body for safety in use. The 0.063 inch (1.6 mm) diameter vent hole is constructed on the cap.
Operation and Installation Instruction
D-Pro VPV series purge valve requires a quarter turn of cap with a wrench from finger-tight for a leak-tight seal on the first make-up. To ensure seal to the rated pressure, snug with a wrench. Always open the valve slowly. These valves have no seal on cap. Therefore media may flow through the cap thread when the valves are opened. Operating personnel should take suitable measures to be protected from system fluids. VPV-Series-Purge-Valves.jpg
VBV Series Bleed Valves
(4) Design and ApplicationsD-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. VBV-Series-Bleed-Valves.jpg
VPV Series Purge Valves
(17) DesignD-Pro VPV Series Purge Valves are designed for manually bleeding, venting, or draining system fluids. The cap is clamped to the valve body for safety in use. The 0.063 inch (1.6 mm) diameter vent hole is constructed on the cap.
Operation and Installation Instruction
D-Pro VPV series purge valve requires a quarter turn of cap with a wrench from finger-tight for a leak-tight seal on the first make-up. To ensure seal to the rated pressure, snug with a wrench. Always open the valve slowly. These valves have no seal on cap. Therefore media may flow through the cap thread when the valves are opened. Operating personnel should take suitable measures to be protected from system fluids. VPV-Series-Purge-Valves.jpg
