Yale VHP & VHH Directional Valves

• Manually operated, 700 Bar
• These directional valves control the oil flow in combination with hydraulic power packs (YHH-4/3 with hand pumps).
• All valves have 3 lever positions to control movement of the connected hydraulic cylinder:
  

1. Left: cylinder advance.
2. Middle: cylinder neutral (pressureless circuit).
3. Right: cylinder retracts.

• In the middle position (hold) the piston of the cylinder stops and the oil flow is guided in a circuit back to the reservoir (P to T). The valves can be flanged directly onto power packs but can also be connected by using hydraulic piping.
• All valves are equipped with a second pressure oil port "P" at the back of the valve base.
• Port can easily be used to connect a pressure gauge and a pressure relief valve (e.g. VPR-1).
• The oil port "T" shall always be connected to the reservoir without any back pressure.