5/3-way solenoid valve, pilot-operated, pressure centre, G 1/4, 600 l/min, 24 V AC - E.MC

When a cylinder has to do more than reach its two end positions, stopping or being released along the way, a 5/3-way valve is the right choice. The pilot-operated valve from the E.MC RV series switches with two 24 V AC coils and passes up to 600 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

• Flow rate of 600 l/min at 3.9 mm nominal diameter and 12 mm² effective area (Cv 0.67), 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.
• Valve body and spool in aluminium alloy, HNBR O-rings, pilot unit in engineering plastic.
• IP65 protection to DIN 40050 and insulation class F, each coil draws 4 VA.

Applications

• Control circuits fed by a control transformer at 24 V AC.
• Through-rod cylinders that should stay pressurised and force-balanced in the centre position.
• Medium-size cylinders in fixtures and feeders, piped in G 1/4.

Accessories and spare parts

A matching 24 V AC 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.