Two-handed safety valve, without console, Quick-connect plug - Riegler 106712

Two-handed safety valve, without console, Quick-connect plug hose 4 mm, Operating pressure 2.5 - 8 bar, Temp. -10 °C to 60 °C This pushbutton panel according to EN ISO 13851 Type III A is comprised of a dual manual control valve with a housing and manifold. The valve only generates an output signal if two synchronised input signals are received within < 0.4 sec. If one input signal is interrupted, the output signal is interrupted as well. An emergency stop valve with a mushroom pushbutton is included. The housing can be screwed to the wall in any position

Standards and origin

• Customs tariff number: 84818099
• Country of origin: AT

About Two-hand safety control valves

A two-hand safety control releases the output signal only when both push buttons are operated with a time offset of less than 0.4 seconds. As long as both hands rest on the buttons they are out of the danger zone of the fixture. If one input signal is interrupted, the output signal is switched off as well. The series runs on 2.5 to 8 bar of filtered, unlubricated compressed air.

What matters when choosing

• Scope of supply: the complete safety console of housing and valve block, the valve without console for fitting into a control panel of your own, or the valve adapter for DIN rails as a mounting part.
• Connection: quick-connect plug for 4 mm hose, so the control can be tied into existing tubing without a screwed fitting.
• Operating pressure: 2.5 to 8 bar. The minimum figure is the critical one, because safe function is not covered below it.
• Medium: filtered, unlubricated compressed air. An air preparation unit with a filter therefore belongs upstream of the control.
• Max. time offset of the input signals and type of actuation: the 0.4 second offset defines what counts as simultaneous two-hand operation. Actuation is by push button.

Typical applications

• Manually loaded presses and punching machines with two-hand release
• Joining, riveting and press-fit stations in assembly
• Clamping and test fixtures where the operator has to keep both hands clear of the tool
• Retrofitting existing pneumatic fixtures by means of the DIN rail adapter
• Custom control panels that take the valve without console

The console is built to EN ISO 13851 type III A, referred to in the older description as EN 574 type III A, and includes an emergency stop valve with mushroom head button. Production is in Italy and Austria.