Description: The flow control switch consists of a paddle system, at the upper end of which is a permanent magnet. Above this magnet, a reed contact is placed outside the flow. A second magnet serves to generate a restoring force, for the paddle. If the flow to be monitored meets the paddle system, it will be deflected. As a result, the magnet changes its position to the reed contact, which is thus actuated. Once the flow is interrupted, the paddle moves back to its original position and thus actuates the reed contact again. The necessary restoring force is generated by the two repelling magnets. The exploitation of the magnetic force, compared to a conventional leaf spring, results in a much better long-term stability and a much higher insensitivity to pressure peaks. Advantages: Direct installation in pipes DN 50 ... 150 • Screw-in spigot for T-pieces and pipe direct installation • Alternatively soldering or welding nipples • Easy installation through screw connection • Various connection plugs or 1.5 m sheathed cable • For use in potentially explosive atmospheres (version VH ... X) max. Media temperature 100°C. Technical details: Flow control switch VH 305 M. Type: VH305M01131R21X3. Brass, SP-9111. Brass screw-in G1 / 2 external thread. Bushings stainless steel. For direct installation in DN 50 ... DN 150, PN 25. Max. Medium temperature 100°C. Output potential-free contact. PVC sheathed cable 3000 mm.. For use in explosive areas. (Only available with blue connection cable).
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