Description:
1. Can be used to counter pressure by A port or B port.
2. Internal drain type, out port directly go through oil tank.
1. Nomina dia.: 02, 03, 06.
2. Control port: A port, B port.
3. Pressure adjustable range: (1) 02: 1:7-70 2:10-210. (2) 03: 1:10-70 2:35-210. (3) 06: 1:10-70 2:30-210.
4. Adjustment: none: use hand-knob.