Dwyer Series-V4 Flotect Flow Switches: Weatherproof, Explosion-Proof, Low Flow Protection
Dwyer V4 Flotect vane flow switch for pipes 1-1/2 in and up: weatherproof and explosion-proof, up to 5000 psig, for loss-of-flow protection in hazardous areas.
Built to order to your specification and supplied by Ronsor Engineering · +65 6779 2818 · Not sure it's the right one? Try the Product Finder
Model / series: V4
The V4 Flotect® protects equipment and pipelines against reduced or lost flow. As on the V6, the vane moves a magnet that operates a snap switch through the solid metal body, with no bellows, springs or seals. Five vane combinations set the trip point.
Key specifications
- Pipe sizes: 1-1/2 in and larger; 1-1/2 in NPT or BSPT
- Pressure: 1000 psig brass, 2000 psig 316 SS (5000 psig option)
- Temperature: -20 to 135 °C (205 °C high-temperature option)
- Switch: SPDT or DPDT, up to 10 A at 125/250 VAC
- Approvals: UL, CSA, FM; ATEX and IECEx Ex db IIB T6
- Wetted parts: 316 SS vane; brass or 316 SS body (other materials on request)
Where it’s used
Our application pages place it on pumps and compressors, electric arc furnaces and water purification (UPW).
Ordering
Built to order. Tell us the pipe size, the fluid and trip flow, the pressure and the approvals, and we’ll confirm the model code and lead time.
