Unloader, Safety & Flow Control Valves

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Unloader, safety, and flow control valves are essential components in any pressure washing system. Unloader valves regulate pressure and allow your pump to bypass water when the trigger is released, while relief and safety valves provide protection against overpressure to safeguard pumps, hoses, and other equipment. Flow regulators play a complementary role by controlling and stabilizing water flow, which is particularly useful in multi-gun setups, chemical applications, and when using attachments that require consistent performance, helping ensure smooth, efficient, and reliable operation.
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  • Canpump Universal Bypass Kit for 3/8-in Unloader Valve
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    Canpump

    SKU: 500059

    Canpump Universal Bypass Kit for 3/8-in Unloader Valve

    Inlet: 3/4-in Garden Hose Female
    Outlet: 3/8-in Male NPT to 3/8-in Quick-Connect Socket
    Bypass: 3/8-in Male NPT to Barbed Fitting
    C$35.00
  • 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
    C$90.00
  • 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
    C$110.00
    Out of stock
  • 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
    C$92.00
  • 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
    C$80.00
  • Bertolini APR 20: 2000 psi @ 5.5 US gpm Unloader Valve
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    Bertolini Pumps

    SKU: 041002

    Bertolini APR 20: 2000 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
    C$90.00
  • 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
    C$410.00
  • P.A. VB 53: 7250 psi @ 21 US gpm Stainless-Steel Unloader Valve
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    P.A.

    SKU: 042004

    P.A. VB 53: 7250 psi @ 21 US gpm Stainless-Steel Unloader Valve

    Chemical injector: No
    Inlet: 1/2-in Female
    Outlet: 1/2-in Female
    Bypass: 1/2-in Female
    C$420.00
  • Bertolini APR.I 30: 3000 psi @ 5.5 US gpm Unloader Valve w/ Fixed Injector
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    Bertolini Pumps

    SKU: 041016

    Bertolini APR.I 30: 3000 psi @ 5.5 US gpm Unloader Valve w/ Fixed Injector

    Chemical injector: Yes
    Inlet: 1/2-in Male
    Outlet: 3/8-in Male
    Inlet Banjo Bolt: 1/2-in Male
    Outlet Banjo Bolt: 3/8-in Male
    C$110.00
    Out of stock
  • P.A. VB 130: 2300 psi @ 6.5 US gpm Unloader Valve
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    P.A.

    SKU: 041019

    P.A. VB 130: 2300 psi @ 6.5 US gpm Unloader Valve

    Chemical injector: No
    Inlet: 3/8-in Male
    Outlet: 3/8-in Male
    Bypass: 3/8-in Female
    C$66.00
  • P.A. Pulsar Rv: 2300 psi @ 10 US gpm Unloader Bypass Valve w/ Knob
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    P.A.

    SKU: 041009

    P.A. Pulsar Rv: 2300 psi @ 10 US gpm Unloader Bypass Valve w/ Knob

    Chemical injector: No
    Inlet: 3/8-in Female
    Outlet: 3/8-in Female
    Bypass: 3/8-in Female
    C$90.00
  • 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
    C$230.00
    Only 2 in stock