High pressure hose for use with high pressure cleaning equipments has closing valve that is controllable according to differential pressure between upstream and downstream hose sections

摘要

The high pressure hose (28) is connected at one end to a high pressure pump (12) and at the other end to a delivery device (32). A closing valve (42) is controllable based on the differential pressure between the upstream hose section (44) and the downstream hose section (45). The closing valve is arranged by a distance of 0.5 to 2 m from the pump lateral end of the hose.