Hydraulic control unit HCD4-W containing PASCAL pump (air-driven hydraulic pump ) generates a hydraulic pressure (10.6MPa)
by air pressure (about 0.5 MPa). Pump action stops when the hydraulic pressure reaches the designated level, and keeps it.
Coupling valve VCB is to be installed between double action clamps and control unit. The control unit and coupling valve can be
separated by using a hydraulic coupler. Coupling valve has a non-leak feature which assures a thorough sealing.
