K1 Unloader Valve

RATED PRESSURE 250bar
RATED FLOW40l/min
RATED TEMPERATURE90°C

 
CODEINLETOUTLETWEIGHTBY-PASSREPAIR KIT
K13/8 Bsp F1/2 Bsp F1050g1/2 Bsp M34.0168.01A
 

An unloader valve allows a pump to bypass the flow of water while the gun is closed. It is a safety device designed to protect the pump in the event of over pressurization.

The K1 is a zero- pressure, 41l/min, 250 bar, unloader valve. A normal unloader is flow sensitive therefore, closing the gun opens the unloader’s bypass aperture. This allows the water to discharge at a low pressure.

The K1 is different in the sense that it maintains a constant, low pressure in the delivery & bypass lines. Thus permitting a lower pressure in both the pump & delivery line under bypass conditions. Hence line hammer when using the K1 is significantly reduced.

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