Series V4 Universal Vane Flow Switches

Compact and reliable, the Flotect V4 Flow Switch operates automatically to protect equipment and pipeline systems against damage from reduction or loss of flow. Installed in thousands of pipelines and processing plants around the world, this unique magnetically actuated switching design gives superior performance. Universal multi-layer vane accommodates pipe sizes from 1-1/2" up to 20". Custom vanes are available with factory calibration. There are no bellows, springs or seals to fail. Instead, the free swinging vane attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm. Simplicity of design and a leak-proof switch body, machined from bar stock for pressures to 2000 psig (140 kg/cm2), eliminates the possibility of process fluid entering the switch compartment. The threaded conduit enclosure cover permits easy inspection or replacement of electrical assembly without shutting down the process, or removing electrical conduit. Power must be disconnected. The units fits directly into pipeline tee, thredolet or flange for easy installation. Pendulum-like vane action responds accurately to fluid flow rate. The custom vane or multi-layer vane is sensitive to low velocity flows, yet is rugged enough to withstand high flow surges. If desired, a delay timer can be wired into the installation. All units are explosion proof and listed U.L. and C.S.A. for Class I, Groups C and D, Class II, Groups E, F, and G.

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