VDRV7 - VDV7 06 ? 080 pages

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THROTTLE VALVE Series - VDRV7/VDV7

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[♦♦I VELJAN

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Veljan Throttle Valves VDV7 and Throttle Valves with integral Check Valves VDRV7 are for various applications requiring flow regulation

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without pressure compensation. In a circuit where the line pressure is almost steady and small function of oil flow due to pressure

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changes is permitted, the usage of this valve is ideally recommended. The integrated check valve allows reversed free flow from outlet

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port to inlet port. These va Ives are not intended for use as shut-off valves.

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For accurate control, pressure and temperature compensation is essential and for the same usage of Flow Control Valve Series V2F1 C

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is ideal. Contact VELJAN for further information.

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VDV7 .
	-+-

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VDRV7

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SPECIFICATION

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General

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Type

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Design

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Type of mounting

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Type of port

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Connections

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Port sizes

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Direction of flow

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Ambient temperature

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Special working

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conditions

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Hydraulics

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Operating Pressure

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Range (inlet or outlet]

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Cracking pressure

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Leakage when

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Fully closed

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Throttle Valve VDV7

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Throttle with integral check Valve VDRV7

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Spool Type valve with metering groove

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Subplate / Threaded

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Threads in subplate / threads in body

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3/4 &

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1 v4

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1 Vi

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Subplate mounting - V2 ,

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B.S.P.P.& NPTF threaded

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34"or V'jWor 1V2"

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VDV7 B^ A (metered flow

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on either way]

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VDRV7 B^ A (metered flow]

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A^ B (free flow)

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-20°C...+ 60°C (-4°F...+ 140°F)

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Consult VELJAN

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Minimum-Opsi (0 bar]

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Maximum -5000 psi (350 bar]

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2 bar approximately only for VDRV7

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3/8" & 1/2": 300cc/minat

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3000 psi (210 bar]

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600 ce/min at

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5000 psi (350 bar]

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Nominal flow

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gpm (Ipm)

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Fluid Temperature

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Range

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Viscosity range

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Type of actuator

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Adjustment

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Operating Torque

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Stroke

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3/8"

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3/4"

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1 w <

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le 1/2"

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?< r

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1V2"

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500 ce/min at

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3000 psi (210 bar]

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900 ce/min at

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5000 psi (350 bar]

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800 ce/min at

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3000 psi (210 bar]

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1 300 ce/min at

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5000 psi (350 bar]

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25 (95]

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50 (190]

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1 1 9 (450]

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-18°C...+80°C (0°F... + 176°F]

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Unlimited

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Manua

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300 N-cm at 210 bar (3000 psi)

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(adjustment should not be done under

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pressure beyond 2 1 0 bar (3000 psi)

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3/8" & 1/2" : 14.0 mm

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3/4" & 1" : 13.5 mm

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1 W & 1V2 : 15.0 mm

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