131 FLOW SWITCH

The model 131 Flow Switch is suitable for setpoints between 2.5 m/s and 12.5 m/s, with a max flow rate up to 17.5 m/s.

Vane Operated Flow Switch is designed to provide protection and control in ducted air systems in flammable atmospheres.

Its main application is to detect air flow in HVAC systems located in harsh environments and/or hazardous area.

The sensing element is a freely pivoted, counter-weighted vane which at its rest position lies at right angles to the direction of flow. The action of the flow is to pivot the vane and operate a microswitch via a dustproof seal.

The sensing element is also available in noble materials to withstand with NACE applications.