Counter balance valve for Tadano TMS-1052

The L70495 counter balance valve regulates the movement of hydraulic cylinders in crane systems. By acting as a hydraulic brake, this component maintains a load in a fixed position until pilot pressure is applied to initiate movement. It prevents the cylinder from retracting abruptly due to gravity or external forces and ensures that the speed of descent remains controlled during operation.

This valve is designed for use in the Tadano TMS-1052, Tadano TXL300-1, Terex TMS-1052, and Terex TXL300-1 cranes. It is typically integrated into hydraulic circuits governing boom elevation, boom extension, and outrigger deployment. These valves function as pilot-operated check valves that only open when the pilot pressure exceeds the load pressure and the internal spring force. They are engineered to manage specific flow rates and pressure settings to maintain stability during heavy lifting tasks.

Counter balance valves are used in hydraulic systems to provide load holding and motion control. By locking the fluid in the cylinder, they prevent movement in the event of a hose failure or a loss of pressure in the control line. This ensures that suspended loads remain secure and that movements are smooth and predictable under varying operational conditions.