Sun Hydraulics is a world leader when it comes to counterbalance valves. With such a variety of options to choose from, designers can optimise both efficiency and safety. Pilot ratios range from as low as 1.5:1 up to 10:1. Maximum pressure capabilities up to 420 bar with flow capacities starting from 15 l / min. up to 480 l / min.
Counterbalance valves control motion by guaranteeing the directional valve always sees a positive load pressure, even with overrunning loads. This range of counterbalance valves (with pilot-to-open assist) will shut off with very low (approaching zero) leakage.
These counterbalance valves can be mounted in, at or near hydraulic cylinders and motors to protect against load runaway through hose failure and to improve system stability.
Axiom Hydraulics is the exclusive supplier of Sun Hydraulics’ counterbalance valves to hydraulic applications across southern Africa.
Counterbalance valve specifications:
- Pilot ratios range from as low as 1.5:1 up to 10:1
- Maximum pressure capabilities up to 420 bar
- Flow capacities from 15 to 480 l / min.
Sun Hydraulics cartridge valves are CE / TÜV certified in accordance with the Pressure Equipment Directive 2014/68/EU (PED).
Tailored to your application:
Axiom Hydraulics has nearly 30 years’ experience in designing systems using Sun Hydraulics’ counterbalance valve range to suit the hydraulic needs of southern Africa’s mining, marine and agriculture industries.
We utilise state-of-the-art manufacturing, testing and calibration machinery to ensure long-lasting, OEM-specified performance for all product modifications.
Axiom Hydraulics also holds critical hydraulic spare parts to minimise downtime for clients.
Counterbalance valves examples:
Non-vented, standard-pressure counterbalance valve:
Non-vented, high-pressure counterbalance valve:
Semi-restrictive counterbalance valve:
Restrictive counterbalance valve:
Atmospherically referenced standard- / high-pressure counterbalance valve:
Electro-proportional pressure reducing / reliving valve: