This is a pressure-actuated regulator that is designed for any 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 nut that controls the amount of tension on a pressure spring.  When the water flow stops, it is diverted through the bypass port at virtually no pressure.  The regulator is capable of handling one or more shut-off guns and should be run with no bypass (if the full flow from the pump is going through the regulator).  It actuates at around 10% above the system pressure.

  • Giant Industries Limited Warranty
  • 22982R Literature


U.S. Metric
Flow (Maximum) 52.8 GPM 200 L/min
Flow (Minimum) 2.1 GPM 8 L/min
Pressure (Maximum) 3000 PSI 207 bar
Pressure (Minimum) 580 PSI 40 bar
Continuous Temperature 160 ºF 70 ºC
Inlet 1″ BSP
Outlet 1″ BSP
Bypass 3/4″ BSP
Weight 15.4 lbs 7.0 kg


Repair Kit – Part #09811R
14 13247 Piston 1
15 05704 Seal Support 1
16 04036 Hexagon Nut 1
18 13012 O-Ring 1
20A 07281 O-Ring 1
21 07840 Support Ring 1
21A 07904 Support Ring 1
22 13254 Seal Pack 1
22A 08087 Grooved Seal Ring 1
25 12057 O-Ring 1
26 12055 O-Ring 1
28B 07653 O-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.