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Pulsar 4RV Unloader Valve
PA Pulsar 4RV trapped pressure unloader valve in brass and steel, rated to 280 bar, 40 litres per minute and 90°C, with 3/8" BSP female inlet, outlet and bypass ports. Pressure is set with the blue spring and regulator knob.
When the trigger gun is released the valve sends the water to bypass while keeping pressure trapped in the hose; when the gun is opened again the flow returns to the outlet at the set pressure.
Commonly fitted to MAC International pressure washers, including the Lux series.
To check thread sizes, see our BSP thread size chart.
For technical advice or help choosing a part, call 015395 66193 or email sales@flowjet.co.uk.
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