Counterbalance valves are also known as over-centre valves or motion control valves. They are designed to control the motion of overrunning loads.
Technical requirements:
- Load holding at “zero leakage”
- Excellent control of negative loads during operations and throughout flow range
- Quick response time
- Pressure relief protection against overloads
- Energy saving
- Tolerance to oil contamination
- Compact design
| VBSN Standard | |
| Flow | Up to 320 l/min |
| Max operating pressure | 420 bar |
| Pilot Ratio | 1.5 to 9 |
| Cavity | Common industry and market interchange |
| VBSP Relief Compensated | |
| Flow | Up to 320 l/min |
| Max operating pressure | 420 bar |
| Pilot Ratio | 3 and 4 |
| Cavity | Common industry and market interchange |
| VBST atmospherically vented | |
| Flow | Up to 320 l/min |
| Max operating pressure | 420 bar |
| Pilot Ratio | 1.5 to 4 |
| Cavity | Common industry and market interchange |
| VBSY 4-ports vented | |
| Flow | up to 240 l/min |
| Max operating pressure | 420 bar |
| Pilot Ratio | 1.5 to 4 |
| Cavity | market interchange |