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Directional valves with an on-board driver and an LVDT transducer. IEC 61508 Safety Integrity Level and ISO 13849 Performance Level certified by TÜV.

Proportional safety valves for application in machines' hydraulic circuits, which must comply with the safety requirements of the Machine Directive 2006/42/EC. Depending on the valve's features, it is designed to perform Safety Functions while performing the standard control of direction, speed, pressure/ force, or positioning of hydraulic actuators.

The Safety Functions help to reduce the risk of potential dangers, that can appear in a specific phase of the machine's operation cycle.

Option /K - on-off signals activated by the machine's central unit (PLC). The central unit inhibits the regulation of the proportional valve, via on-off signals, in case of emergency or for specific requirements of the working cycle. When the valve's command input is disabled, the valve's driver generates on-off output signals. As soon as the spool reaches the safety position, confirming that hydraulic regulation has been inhibited, the machine's central unit (PLC) manages the received information as a safe condition.

Option /U - a double power supply is activated by the machine's central unit (PLC). The central unit inhibits the regulation of the proportional valve by removing the safe power supply of the valve's solenoids, in case of emergency or for specific requirements of the working cycle.

In the case of the solenoid's power supply interruption, the valve's driver remains active. Due to the separate power supply for logics a fault signal and communication are provided to the machine's central unit (PLC), which manages information as diagnostics signals.

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