| 摘要 |
In a spray gun of a high-pressure cleaning device, two manually controllable flow rate control valves for controlling the through-flow cross-section for a high-pressure medium are arranged one behind the other. The first flow-rate control valve consists of a hand lever which is swivellably joined to the valve body of the spray gun and acts via an actuation rod on a spring-loaded flow-rate control valve which controls the through-flow of the high-pressure medium through the valve body. According to the invention, a second, manually controllable flow-rate control valve is arranged in the spray gun downstream of the first flow-rate control valve. The first flow-rate control valve opens and closes the through-flow cross-section completely whilst the second flow-rate control valve ensures a precise adjustment of the through-flow cross-section.
|
