WF4 (Vac)

“WF4” adjustable vacuum switches allow a micro-switch commutation once a preset pressure value is reached. Working on the central screw in the P2 execution or intercepting the regulator dowel put inside the instrument using a 2mm hexagonal screw, rotating the operating point in an hourly sense to increase and vice-versa to decrease. Mechanical stops protect both the spring and the micro-switch from over pressurization.

This product has the following features:

• • Body: 24 mm hexagonal in zinc-plated carbon steel

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• • Assembly: in every position

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• • Working temperature: from – 25°C to 85°C

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• • Switching frequency: 90 cycles/min

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• • Switching accuracy: ± 4% of the pressure settled to 20°C

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• • Operating point: adjustable through an internal screw

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• • Fixed hysteresis value: ~ 15% of the settled value

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• • Weight: 0,05 Kg

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• • Mechanical life: 106 cycles at 70 bar (1000 psi) at 20°C

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Download Data Sheet