Unloader & Safety Valves

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Unloader valves are required components that regulate pressure and allow your pump to bypass water when the trigger is released. Relief and safety valves provide additional protection by preventing overpressure situations. Together, these components help ensure smooth and reliable system operation.

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  • Bertolini APR 25: 2500 psi @ 5.5 US gpm Unloader Valve
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    Bertolini Pumps

    SKU: 041003

    Bertolini APR 25: 2500 psi @ 5.5 US gpm Unloader Valve

    Chemical injector: No
    Inlet: 1/2-in Male
    Outlet: 3/8-in Male
    Inlet Banjo Bolt: 3/8-in Male
    Outlet Banjo Bolt: 3/8-in Male
    US$72.00
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  • Canpump 1/2-in Unloader Valve - 4350 psi @ 21.1 US gpm
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    Canpump

    SKU: 043006

    Canpump 1/2-in Unloader Valve - 4350 psi @ 21.1 US gpm

    Chemical injector: No
    Inlet: 1/2-in Female
    Outlet: 1/2-in Female
    Bypass: 1/2-in Female
    US$88.00
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  • Canpump Universal 3/8-in Unloader Valve - 4000 psi @ 6.6 US gpm, Easy Start
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    Canpump

    SKU: 043005

    Canpump Universal 3/8-in Unloader Valve - 4000 psi @ 6.6 US gpm, Easy Start

    Chemical injector: No
    Inlet: 3/8-in Female
    Outlet: 3/8-in Male
    Bypass: 3/8-in Female
    US$56.00
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  • Canpump Unloader Valve - 4000 psi @ 6.6 US gpm, Easy Start, Outlet 3/8-in M NPT, Without Injector
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    Canpump

    SKU: 043008

    Canpump Unloader Valve - 4000 psi @ 6.6 US gpm, Easy Start, Outlet 3/8-in M NPT, Without Injector

    Chemical injector: No
    Inlet: 3/4-in Garden Hose Female
    Outlet: 3/8-in Male NPT
    Inlet Banjo Bolt: 1/2-in Male
    Outlet Banjo Bolt: 3/8-in Male
    US$44.00
    Out of stock
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  • P.A. VB 85/160: 2300 psi @ 21 US gpm Unloader Valve
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    P.A.

    SKU: 042006

    P.A. VB 85/160: 2300 psi @ 21 US gpm Unloader Valve

    Chemical injector: No
    Inlet: 1/2-in Female
    Outlet: 1/2-in Female
    Bypass: 1/2-in Female
    US$124.00
    Only 3 in stock
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  • Bertolini APR 40: 4000 psi @ 5.5 US gpm Unloader Valve
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    Bertolini Pumps

    SKU: 041007

    Bertolini APR 40: 4000 psi @ 5.5 US gpm Unloader Valve

    Chemical injector: No
    Inlet: 1/2-in Male
    Outlet: 3/8-in Male
    Inlet Banjo Bolt: 1/2-in Male
    Outlet Banjo Bolt: 3/8-in Male
    US$72.00
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  • P.A. VS 310: 4500 psi @ 10.5 US gpm Safety/Relief Valve, 1 Inlet Port
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    P.A.

    SKU: 041014

    P.A. VS 310: 4500 psi @ 10.5 US gpm Safety/Relief Valve, 1 Inlet Port

    Inlet: 3/8-in Female
    Outlet: 3/8-in Female
    US$64.00
    Out of stock
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  • P.A. VB 35: 2500 psi @ 6.5 US gpm Bolt-On Unloader Valve
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    P.A.

    SKU: 041018

    P.A. VB 35: 2500 psi @ 6.5 US gpm Bolt-On Unloader Valve

    Chemical injector: No
    Inlet: 3/8-in Female
    Outlet: 3/8-in Male
    Inlet Banjo Bolt: 3/8-in Male
    Outlet Banjo Bolt: 3/8-in Male
    US$73.60
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  • P.A. Pulsar Zero: 4050 psi @ 10.5 US gpm Flow-Sensitive Unloader Valve
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    P.A.

    SKU: 041011

    P.A. Pulsar Zero: 4050 psi @ 10.5 US gpm Flow-Sensitive Unloader Valve

    Chemical injector: No
    Inlet: 3/8-in Female
    Outlet: 3/8-in Female
    Bypass: 3/8-in Female
    US$184.00
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  • P.A. VB 200/150: 2175 psi @ 53 US gpm Unloader Valve
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    P.A.

    SKU: 043001

    P.A. VB 200/150: 2175 psi @ 53 US gpm Unloader Valve

    Chemical injector: No
    Inlet: 1-in Female
    Outlet: 1-in Female
    Bypass: 1-in Female
    US$328.00
    Only 3 in stock
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  • Bertolini APR 30: 3000 psi @ 5.5 US gpm Unloader Valve
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    Bertolini Pumps

    SKU: 041005

    Bertolini APR 30: 3000 psi @ 5.5 US gpm Unloader Valve

    Chemical injector: No
    Inlet: 1/2-in Male
    Outlet: 3/8-in Male
    Inlet Banjo Bolt: 1/2-in Male
    Outlet Banjo Bolt: 3/8-in Male
    US$72.00
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  • P.A. VB 60/600 Zero: 8700 psi @ 16 US gpm Flow-Sensitive Unloader Valve
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    P.A.

    SKU: 042000

    P.A. VB 60/600 Zero: 8700 psi @ 16 US gpm Flow-Sensitive Unloader Valve

    Chemical injector: No
    Inlet: 1/2-in Female
    Outlet: 1/2-in Female
    Bypass: 1/2-in Female
    US$760.00
    Only 2 in stock
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