Counterbalance valves should be set at least 1.3 times the maximum load induced pressure. Turn adjustment clockwise to decrease setting and release load. Full clockwise setting is less than 200 psi (14 bar). Backpressure at port 2 adds to the effective relief setting at a ratio of 1 plus the pilot ratio times the backpressure.

22/05/  · The counterbalance valve is located in a line between a directional control valve and the vertically mounted actuator/cylinder. The counterbalance valve working principle states

Modular Counterbalance Valve | hydraulic valves manufacturer - SEVEN OCEAN HYDRAULICS. Seven Ocean's Series MCB-02 valve controls the actuator back pressure 

Counterbalance valve VBST-10A 04.59.16 - X - 85 - Z . Vented guided poppet type; Common cavity, Size 10; Maximum operating pressure 350 bar; Maximum flow 60 l/min; Additional information . Data sheets. Additional Technical Data. Common cavity. Open all Close all. Addresses. Subject to change, status 2020-10-06 12:21:10

A counterbalance valve can easily be described as a pilot operated relief valve with a free flow check. The relief valve within the counterbalance valve provides the critical function of

Counterbalance valves are used in hydraulic systems working with an overriding (run-away) or suspended load. They are designed to create backpressure at the return line of the actuator to prevent losing control over the load. The following illustration shows a counterbalance valve schematic. If a directional valve (not shown in the picture) is

26/08/  · A counterbalance, or load-holding, valve is a mechanism typically located near the actuator that uses hydraulic pressure to keep a load from moving. Generally, these valves have

loads less pilot pressure to open the counterbalance valve, helping to improve stability and reverse flow check valves are suitable for counterbalancing.

Counterbalance valves can be compared to elevator counterweights. A heavy elevator car is tough for a motor to start and stop on its own. Without a counterweight, raising or lowering the car is tough! The motor and drawworks have a hard time starting and controlling the load. Elevator Without Counterweight. Elevator With Counterweight.

Counterbalance valves allow raised loads to be lowered safely, with a minimum of wasted energy. The Counterbalance Valves lesson provides a thorough look 

A counterbalance valve's function is to maintain a set pressure against the load to keep it from over-running. For very low flow, a counterbalance valve can also serve as a thermal relief valve. The counterbalance valve uses a pilot signal, usually from the inlet of the cylinder, to assist in opening a poppet. A pilot assist makes the