Pump system for manually operated knapsack sprayers

摘要

A reciprocating pump is operated from underneath and is positioned on the floor of the spray fluid container (12). During pumping, the spray fluid (15) in the container and in the pump' suction area is hydraulically stirred and homogenized. The pump system contains a multi-functional body of pump lift compartment (2) in the cylinder head area, pressure valve (8) to the air dome pressure container (9), stirrer lift compartment (3) in the cylinder neck, vertical suction duct (6) with suction valve (7), bottom part of the air dome pressure container, and outlet duct with connecting pipe for the spray fluid.