Vonberg pressure controls are available in two product types — relief valves and counterbalance valves. Two body styles are available are in-line and threaded cartridge.
Relief valves limit maximum system pressure or maintain a desired pressure within a hydraulic circuit. Relief valves are also available with a free reverse flow option that limits maximum system pressure or allows sequencing of pressures within a circuit. Vonberg manufactures both direct acting and differential area relief valves.
Counterbalance valves allow free flow in one direction, while flow in the opposite direction is controlled by a specified pilot ratio and relief pressure setting. They are intended for motion control and overcenter load holding applications, and are available in either industry standard or t-series cavity designs.
Product Description
Counterbalance cartridge valve, pilot to open, three port, with atmosphere venting spring chamber and free reverse flow check.
- Adjustable with locking nut
- Counterclockwise adjustment to increase relief setting
- Sealed pilot piston, low internal leakage
- Quiet, stable operation
- Low relief hysteresis
- Pilot ratios up to 10:1 available
- Operating pressure: 5000 psi
- Temperature range: 250°f to -40°f
- Relief tolerance: +/- 10%
- Internal leakage: 5 drops/min. max.
- Standard crack pressure: 25 psi
- Relief adjustment range: 500 – 5000 psi
