Limit switches and push-button valves
Valves
Limit-switch and pushbutton valves are mechanically actuated pneumatic valves for manual or position-controlled switching of compressed air circuits without electrical control. The E.MC range includes axial hand-lever valves (L series) and hand-lever valves (H series) in 3/2-way and 5/2-way versions, as well as 5/3-way with pressurised centre position, each with detent or spring return, in port sizes G 1/8", G 1/4" and G 1/2".
| Type | Function | Actuation | Ports |
|---|---|---|---|
| H 321-06 / H 322-08 / H 324-15 | 3/2-way | Lever, detent | G 1/8" - G 1/2" |
| H 321-06 S / H 322-08 S / H 324-15 S | 3/2-way | Lever, spring return | G 1/8" - G 1/2" |
| H 521-06 / H 522-08 / H 524-15 | 5/2-way | Lever, detent | G 1/8" - G 1/2" |
| H 531-06 P / H 532-08 P / H 534-15 P | 5/3-way, pressurised centre | Lever, detent | G 1/8" - G 1/2" |
| L 521-06 / L 522-08 / L 524-15 | 5/2-way | Axial, detent | G 1/8" - G 1/2" |
| L 524-15 S / L 522-08 S | 5/2-way | Axial, spring return | G 1/4" - G 1/2" |
Typical applications: Manual individual actuation of pneumatic cylinders at maintenance and service stations; emergency shutdown and manual override in pneumatic control circuits without PLC; end-position signalling via roller-lever valves in conveying and transfer systems; two-hand control as safety measure on semi-automatic presses and joining fixtures.