[GFP] Unloading Valves
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Task-Force Valves - Unloading Valves

For Hi-Low Circuits

MOST VALVES & PARTS IN STOCK FOR SAME DAY DELIVERY

Threaded Body Design Unloading Valve

Sub Plate Mtg. Unloading Valve

The GFP/Rodgers Unloading Valve directs hydraulic fluid from a pump into a high-low hydraulic circuit* until an adjustable maximum pressure is reached.  At that point, the unloading valve automatically discharges the pump output to the tank at very low pressure.

This Valve may also be vented by connecting suitable valving between the vent port (designated by "V" on the cap) and the oil reservoir.

The Unloading Valve will also act as a relief valve in the circuit it controls.  Relieve pressure is the same as the unloading pressure.

* A high-low circuit consists of two pumps which feed into a common line.  One pump delivers fluid at low pressure and high volume for rapid advance and the other delivers at high pressure and low volume for force.  Since both pumps are seldom needed throughout the cycle, an unloading valve is used to allow the high volume pump output to return to the reservoir at a pre-determined low pressure.

  Model Pressure Adjustment Range Max Pressure (PSI) P & T Pressure and Tank Ports V Vent Port Wt.
Threaded Body VU321103-V 0-2000 10000 7/8-14UNF 9/16-18UNF 13 lbs.
VU321105-V 0-2000 6000 1 3/16-12UNF 9/16-18UNF
VU323105-V 0-6000 6000 1 3/16-12UNF 9/16-18UNF
VU321150-V 0-2000 6000 3/4" NPT 1/4" NPT
VU323150-V 0-6000 6000 3/4" NPT 1/4" NPT
 
Sub Plate VU321200-V 0-2000 6000 See Sub-Plate Mtg. for Porting 9/16-18UNF 16 lbs.
VU323200-V 0-6000 6000 9/16-18UNF
Sub-Plate Mountings *Bolts included with sub-plate
Part No. Port Size Tubing Size Wt.
427001 7/18-14UNF-2B 5/8 O.D. 5 lbs.
427002 1-3/16-12UNF-2B 7/8 O.D.
427003 3/4-14 NPTF 7/8 O.D.

For more information or to view diagrams of this product please see our catalog pages or download our entire catalog.

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Granite Fluid Power

950 14th Street, PO BOX 215, Granite Falls, MN 56241

Phone: (320) 564-9009 or (800) 733-7021

Fax: (320) 564-9029

Email: info@gfpmf.com

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