Cetop 3 (NG6) Counterbalance Valve available here! We are global hydraulic specialists. Chat online now to one of our experts for more information.

Describe the schematic symbol for an external drain. Identify customary locations for the 5 main pressure control valves. Describe a counterbalance valve using 

Counterbalance valves are used to prevent oil from leaving a cylinder that is holding a load. Without the counterbalance valve, the load would move in an uncontrollable manner if oil pressure is lost for some reason. In a sense, they act as adjustable pressure relief valves and are often used where line pressures can spike.

Counterbalance valves are also used to prevent a loaded cylinder from falling, but their operation is smoother than a pilot-operated check valve 

Counterbalance valves can be used with paired cylinders: pilot pressure will open first the valve of the most heavily loaded cylinder; this will cause load transfer to the other cylinder and the

Counterbalance Valve With Test Harness. This example shows how to model, parameterize, and test a counterbalance valve. When you run the model, it generates a plot of the flow from the load port to the back port due to the relief action of the counterbalance valve. A counterbalance valve allows an upstream flow from the back port to the load

Double acting counterbalance valve is designed to hold and control the load lowering on the corresponding working body (hydraulic cylinder).

Parker's CB series counterbalance valve operates as a pressure relief valve. The setting pressure is lowered by the pressure in the inlet line. The return flow from the actuator is piloted and controlled by the inlet flow to the actuator, ensuring a cavitation-free lowering load.

Counterbalance valves can be used with paired cylinders: pilot pressure will open first the valve of the most heavily loaded cylinder; this will cause load transfer to the other cylinder and the related valve, still closed, will require less pilot pressure for opening.

Load Holding Motion Control valve - Counterbalance valve A-VBSO-SE-CC-30-PL-FC2 08.45.21 - X - Y - Z. Single, relief compensated; Flangeable; Maximum operating pressure up to 410 bar; Maximum flow 60 l/min; Data sheets. Additional Technical Data.

So basically a counterbalance valve is a hydraulic system pressure control valve that is used as a safety device to prevent the movement of a 

07/03/  · A counterbalance valve would allow the downward movement of the load supported by a cylinder only when the system pump is operating. The force generated by the system

counterbalance valvecounterbalance valve = adjusting screw= adjusting screw = capped= capped = tamperproof= tamperproof = handknob= handknob = metal handknob= metal handknob for adjustment controlfor adjustment control options see page 0-050.0 options see page 0-050.0 adjustmentadju tmen ss cc tt kk mm steel = 35/40 ft-lb. [47/54 nm]steel = 35/

Description. 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.

Our counterbalance valves offer optimal load holding performance while also providing smooth, modulated motion of your load. Features and benefits Flow rating up to 270 l/min [70 US gal/min] Pressure rating up to 350 bar [5075 psi] Designs available from -8 size to -20 size enabling correct valve sizing for almost all applications

Parker counterbalance valves are screw-in type cartridge valves that control the pressure at an actuator controlling its motion. Uses include controlling over-running loads in cylinders and

Our family of M-valve Load-Reactive Load Control valves offers improved modulation performance. Functionally, it is a counterbalance valve that seats as a poppet valve and modulates as a spool valve, offering the best of both worlds. A built-in dampening device smooths the opening of the valve while allowing the valve to close quickly.

In this lesson we'll examine the last remaining member of the pressure control valve family known as a counterbalance valve commonly used to control the desc

Counterbalance valves · BRAND · Flow l/min - (US gpm) · Max. Pressure bar - (psi) · Ports.

The proven counterbalance valve series ZNS in size NG06 (CETOP 03) and NG10 (CETOP 05) enables a reliable operation by controlling the actuator movement at overrunning loads. 20 Parts Viewing 10 of 20

Learn how hydraulic counterbalance valves work. Understand the different types of valve that are available, their function and where they are used.

Counterbalance valve 572149. Counterbalance valve 572149. More information. Datenblatt/Datasheet/Hoja de datos/Fiche de données DE/EN/ES/FR.

A counterbalance valve is a combination of a pilot operated relief and a reverse free flow check valve. When utilized as a load holding valve in a hydraulic cylinder application, the free flow

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

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.

23/03/2022 · Working of Counterbalance Valve. It is a normally closed type valve. Initially, the fluid from directional control valve (DCV), enters into the through the counterbalance valve

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

12/12/  · A counterbalance valve (also called a brake, holding and/or overcenter valve) is a normally closed-pressure control used to oppose the pressure created by a load. They are typically either internally piloted or internally and externally piloted. When used for holding, these valves must be direct acting, poppet-type pressure controls so valve

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

counterbalance 8 model description flow cavity page no. valves 1 2 3 v1 c1 v2 c2 1 2 3 v1 c1 v2 c2 v 1 2 3 v v1 c1 v2 v c2 cbpa-08 cbpa-10 cbpp-10 cbpp-20m 15 gpm 15 gpm c1025 t-11a 8-152.0 8-152.0 cbpa-12 counterbalance valve, free reverse 10 gpm 20 gpm 35 gpm c0825 c1025 c1225 8-051.0 8-052.0 8-053.0 dcba-08 dcba-10 dcba-12 dual

The counterbalance valves block flow from returning to the reservoir, thus holding the actuator in place. The valve actuator represents the electromagnets that control the directional valve position. When electromagnet B is energized, the directional valve is in the negative position and connects ports A and B to the pressure port P.