This is a pressure-actuated regulator that is designed for any pump that fits within the flow and pressure range of the regulator.  The regulator determines the direction of the flow in the system and maintains system pressure via an adjustable knob that controls the amount of tension on a pressure spring.  When the flow stops, it is diverted through the outlet port and all flow is diverted to the bypass port at virtually no pressure.  This regulator design requires a partial bypass to operate.

WARNING: This product might contain a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

  • Giant Industries Limited Warranty
  • 21906F Literature


U.S. Metric
Flow 10 GPM 40 L/min
Pressure Range 50-150 PSI 3.5-10 bar
Continuous Temperature 160 ºF 70 ºC
Inlet 3/8″ FNPT
Bypass 3/8″ FNPT
Weight 12.05 oz 354.4 Grams
Materials Brass Body, Stainless Steel Wet End Metal Parts


Repair Kit – Part #09666
2 12007 O-Ring 2
4 07023 O-Ring 1
8 05684 Quad Ring 1
9 05685 Back Up Ring 1

Repair Kits Available

The repair kits listed to the right are available for this pump. If you need further information about these repair kits, or have questions about other specific parts for your pump, please contact you local Giant distributor or contact Giant customer service.

Service & Repair

Giant provides service on each pump and accessory that we sell. Many basic repair procedures are covered in the Giant repair manual. For all other questions on service or repair needs please contact your local Giant distributor.