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.

29/05/  · The counterbalance valve’s spool would then partially close, preventing an uncontrolled drop of the load. Pressurizing the line leading to the cylinder’s cap-end port also

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

16/12/  · Counterbalance valves have no pilot ratio and rely purely on line pressure to open them. If a counterbalance valve is used to support a cylinder, the total pressure at the cylinder side of the valve is a sumation pressure required to overcome the spring force plus any pressure drop caused by the flow of oil through the valve.

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

Important factors when specifying counterbalance valves are:- Line lengths; Trapped Air; Cylinder stick/slip; Setting the Valve 

Accept and Enable. Manage Preferences. Demonstration on how to properly set a counterbalance valve on a test stand. See all Videos.

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.

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

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 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

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

The counterbalance valve can prevent the free fall of the load. The working principle of a counterbalance is that the fluid will be trapped under pressure till the pilot pressure overcomes the preset value of the spring force. After that, the fluid will escape, thus letting the load move downwards under control.

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

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

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/

Counterbalance valves setting corresponds to the opening pressure of pressure relief section. This pressure determines the max load which counterbalance valve 

VBSO-SE05.41.01 - X - Y - Z. Single, standard configuration. Ports G 1/2 - G 3/4. Maximum operating pressure up to 3050 psi. Maximum flow 37 gpm. Data sheets. Additional Technical Data. Values in the US customary unit system are converted and rounded values. In case of doubt, only metric values are valid.

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

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.

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