Adjustable Unloader

The Giant 22971C pressure actuated unloader is an adjustable unit for use with any pump up to 1740 PSI and 35.7 GPM! It has an adjustable nut to control tension on the yellow pressure spring. This spring regulates flow in your system and allows for bypass at almost no pressure! Please note that if full pump flow is traveling through the unloader, it is advised to use this model without bypass. More bypass information is available under the manuals tab.

• Actuates at approximately 10% above system pressure
• Use with any compatible pump
• Adjustable nut
• Bypass and no bypass compatibility depending on flow
• Pressure range: 580 - 1740 PSI
• Flow range: 2.1 - 35.7 GPM
• Maximum constant temperature: 158°F
• Inlet: 3/4" FNPT
• Outlet: 3/4" FNPT
• Bypass: 3/4" BSP
• Brass construction
• Giant item #22971C
• Weight: 6.7 lbs.