Spray gun for both high and low pressure cleaning

摘要

The spray arrangement incorporates a high pressure pump (3) and a pistol grip (11) with jet (13). A container (17) with dosing pump (14) can be used to mix a cleaning agent in with the spray. The outlet of the dosing pump connects to the supply line of the jet at a point down stream of the high pressure pump. A by-pass line with control valve (6) connects the outlet of the pump to its inlet. The valve is used to control the pressure of the cleaning medium. A heater (7,19) for warming the medium is also provided.