Rotary Actuators — Counterbalance Valve Block
Optional load holding valves for intermediate position holding and over center conditions. Aluminum and steel configurations available.
Rotary Actuators – Counterbalance Valve Block
Actuators can be configured with a counterbalance, or load holding valve, to provide load stability and prevent the actuator from reaching excessive torque outputs. Producing back pressure in a hydraulic line gives control over a suspended load to stop unintended motion of the actuator. Valve blocks are available in steel and aluminum, and may be purchased separately if required at a later time. Spare parts are also available.
21260A Counterbalance Valve Block
Valve blocks are configured from aluminum and secured to a flat mounting pad on the actuator housing with three bolts. See each individual series page for specific valve locations. The pilot ratio is 3:1. The valves are set to relieve at 3,300 psi (228 bar).
21270 Counterbalance Valve Block
Valve blocks are configured from steel and secured to a flat mounting pad on the actuator housing with three bolts. See each individual series page for specific valve locations. The pilot ratio is 3:1. The valves are set to relieve at 3,300 psi (228 bar).
21280 Counterbalance Valve Block
Valve blocks are configured from steel and secured to a flat mounting pad on the actuator housing. Valve locations and plumbing routing differ among sizes. See each individual series page for specific valve locations. The pilot ratio is 3:1. The valves are set to relieve at 3,625 psi (228 bar).
IC-Fluid Power, Inc. supports many applications including energy, marine & offshore, mining, packaging, plastic & injection molding, and more.
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