Unloader & Relief Valves

Our Unloader & Relief Valves products help control pressure and bypass flow in compatible pressure washer systems.

Browse our Unloader & Relief Valves range below with fast UK delivery available.

Controlsets
Controlsets
Trapped Pressure Unloader Valves
Trapped Pressure Unloader Valves
Flow Sensitive Unloader Valves
Flow Sensitive Unloader Valves
Pressure Regulating Valves
Pressure Regulating Valves
Safety Relief Valves
Safety Relief Valves
Foot Operated On/Off & Bypass Valves
Foot Operated On/Off & Bypass Valves
Pneumatic On/Off & Distributor Valves
Pneumatic On/Off & Distributor Valves
Pneumatic Unloader Valves
Pneumatic Unloader Valves
Pneumatic Pressure Regulating Valves
Pneumatic Pressure Regulating Valves
Pump Thermal Protectors
Pump Thermal Protectors
Easy Start Valves
Easy Start Valves

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Pressure Washing Supplies UK is a UK supplier of pressure washing equipment, pumps, hose reels, hoses, valves, fittings and replacement parts for professional, agricultural and industrial use.

  • Interpump W2 Controlset - 16-21 Lpm
    Interpump W2 Controlset - 16-21 Lpm
    Part No: W2.2
    • 250 Bar max pressure
    • 16-21 Lpm flow
    • 60°C max water temperature
    • Trapped pressure valve & bypass
    • Adjustable chemical injection
    • Fits IP 44-49-50-60 series pumps
    • Brass & st.steel construction
    £95.67 GBP
    £95.67 GBP
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  • Interpump W2 Controlset - 11-15 Lpm
    Interpump W2 Controlset - 11-15 Lpm
    Part No: W2.1
    • 250 Bar max pressure
    • 11-15 Lpm flow
    • 60°C max water temperature
    • Trapped pressure valve & bypass
    • Adjustable chemical injection
    • Fits IP 44-49-50-60 series pumps
    • Brass & st.steel construction
    £95.67 GBP
    £95.67 GBP
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  • Interpump W1 Controlset - 12-15 Lpm
    Interpump W1 Controlset - 12-15 Lpm
    Part No: W1.1L
    • 110 Bar max pressure
    • 12-15 Lpm flow
    • 75°C max water temperature
    • Trapped pressure valve & bypass
    • Adjustable chemical injection
    • Fits IP 44-49-50-60 series pumps
    • Brass & st.steel construction
    £84.97 GBP
    £84.97 GBP
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  • Interpump W1 Controlset - 12-15 Lpm
    Interpump W1 Controlset - 12-15 Lpm
    Part No: W1.1
    • 110 Bar max pressure
    • 12-15 Lpm flow
    • 75°C max water temperature
    • Trapped pressure valve & bypass
    • Adjustable chemical injection
    • Fits Interpump 51 series pumps
    • Brass & st.steel construction
    £84.97 GBP
    £84.97 GBP
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  • Interpump W1 Controlset - 8-11 Lpm
    Interpump W1 Controlset - 8-11 Lpm
    Part No: W1.0L
    • 110 Bar max pressure
    • 8-11 Lpm flow
    • 75°C max water temperature
    • Trapped pressure valve & bypass
    • Adjustable chemical injection
    • Fits IP 44-49-50-60 series pumps
    • Brass & st.steel construction
    £84.97 GBP
    £84.97 GBP
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  • Interpump W1 Controlset - 8-11 Lpm
    Interpump W1 Controlset - 8-11 Lpm
    Part No: W1.0
    • 110 Bar max pressure
    • 8-11 Lpm flow
    • 75°C max water temperature
    • Trapped pressure valve & bypass
    • Adjustable chemical injection
    • Fits Interpump 51 series pumps
    • Brass & st.steel construction
    £84.97 GBP
    £84.97 GBP
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  • Interpump Timax100 Pressure Regulator
    Interpump Timax100 Pressure Regulator
    Part No: TIMAX100
    • 100 Bar max pressure
    • 200 Lpm max flow
    • 60°C max water temperature
    • Manual bypass lever
    • Brass body - St.steel internals
    • 3/4"BSPF inlet
    • 3x 1/2"BSPF outlets
    £126.96 GBP
    £126.96 GBP
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  • Interpump Timax Pressure Regulator
    Interpump Timax Pressure Regulator
    Part No: TIMAX
    • 60 Bar max pressure
    • 200 Lpm max flow
    • 60°C max water temperature
    • Manual bypass lever
    • Brass body - St.steel internals
    • 3/4"BSPF inlet
    • 3x 1/2"BSPF outlets
    £94.38 GBP
    £94.38 GBP
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