5/3-way air-piloted valve, exhaust centre, G 1/4, 600 l/min, pilot port G 1/8 - 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. This valve from the E.MC RVA series is switched purely pneumatically through two G 1/8 pilot ports and passes up to 600 l/min at its G 1/4 port with a nominal diameter of 3.9 mm. With no pressure on either pilot port, the spool sits in the centre position. Both working ports are then open to exhaust. The actuator is depressurised and can be pushed by hand.

Advantages

• Flow rate of 600 l/min at 3.9 mm nominal diameter, enough air for brisk strokes without the valve throttling them.
• Pilot pressure of 2 to 8 bar on two G 1/8 ports, so the signal comes from the same air supply as the valve.
• Service life of at least 40 million switching cycles, roughly 11,000 operating hours at one cycle per second.
• Valve body and spool in aluminium alloy, POM piston, NBR O-rings.

Applications

• Purely pneumatic controls in areas where no electrical wiring is to be installed.
• Actuators that must be free of force while the machine is stopped, for example during maintenance.
• Medium-size cylinders in fixtures and feeders, piped in G 1/4.