5/3-way solenoid valve, pilot-operated, pressure centre, G 1/4, 850 l/min, 12 V DC - E.MC

When an actuator has to stop in a defined way rather than just extend and retract, it needs a third switching position. The pilot-operated valve from the E.MC RV series switches with two 12 V DC coils and passes up to 850 l/min at its G 1/4 port. With neither coil energised, the spool sits in the centre position. Both working ports are then supplied with pressure. With a through rod the forces balance out, with a single rod the area difference pushes the piston slowly outwards.

Advantages

• Valve body and spool in aluminium alloy, HNBR O-rings, pilot unit in engineering plastic.
• Flow rate of 850 l/min at 4.8 mm nominal diameter and 18 mm² effective area (Cv 1.00), enough air for brisk strokes without the valve throttling them.
• Service life of at least 40 million switching cycles, roughly 11,000 operating hours at one cycle per second.
• Response time below 0.05 s and up to 3 cycles per second for cycled sequences.
• IP65 protection to DIN 40050 and insulation class F, each coil draws 3 W.

Applications

• Medium-size cylinders with higher air demand where the exhaust should also be led off in G 1/4.
• Through-rod cylinders that should stay pressurised and force-balanced in the centre position.
• Mobile equipment and battery-powered systems running on 12 V DC.

Accessories and spare parts

A matching 12 V DC replacement coil, type T1, is available separately. For wiring with plug-in connectors, E.MC lists connection cables in 0.3, 0.6 and 1 m lengths.