The connection between the hydraulic power supply unit and the ATLAS S hydraulic props is done using the ATLAS V valve cartridges and the filling Guns. The ATLAS V is actually the device that controls the hydraulic prop and assures the safety of the workers. Each hydraulic prop is fitted with a valve cartridge, while a filling gun is used to supply several hydraulic props.
The proper maintenance, adjustment and the usage of the indicated fluid are key issues in safety assurance underground.