Multiple-ranoe hydraulic valve - includes branch line acting as pressure sensor with one-way valve

摘要

The valve has a pressure sensor located downstream of the constriction (25c) belonging to one plunger valve (25). The pressure sensor is a one-way valve (48) (that blocks the plunger valve) and a branch line (43) branching from the connection line (44) on the working cylinder (30). This branch line is branched upstream from a return valve built into the connection line on the working cylinder. The branch line is connected to a connection line (50) linked directly to the pressure line of the control pressure pump (80) and switched on and off by a built-in magnetic valve.