


Dwyer Instruments V7-WBS-30N | Flotect® vane operated flow switch | Weatherproof | Brass body | 1" NPT | Trimmable vane
When flow or no-flow conditions arise, the Model V7-WBS-30N Flotect® Flow Switch is a low-cost range switch that can be used with appropriate liquids to start or stop electrically operated equipment. Design is standard waterproof, satisfying NEMA 4X.

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- Specifications
- Features
- Downloads
Approvals | CE, UL |
Body Material | Upper: Die cast aluminum |
Connection | Conduit: 1/2" NPSM |
Connection | Electrical: 3 screw type, common, normally open and normally closed |
Connection | Process: 1" male NPT. Contact factory for optional tees |
Enclosure Rating | Weatherproof, meets NEMA 4X (IP66) |
Manufacturer | Dwyer Instruments |
Material | Wetted: Vane: 301 SS, Process connection: Brass or 316 SS, Magnet: Ceramic, Other: 301, 302 SS |
Maximum Operating Pressure | 250 psi (17.2 bar) |
Maximum operating temperature | -40 to 250°F (-40 to 121°C) |
Mounting | Horizontal or vertical (actuation flow rates are based on horizontal pipe runs in the vertical position). Will not work in vertical pipe with down flow |
Rating | Electrical: 10 A @ 125, 250, 480 VAC 1/8 hp @ 125 VAC, 1/4 hp @ 250 VAC |
Set Point | Vane is trimmable, see set point chart on Catalog page |
Size | Pipe: 1" to 4" |
Switch Type | SPDT snap switch |
Type | Vane Operated Flow Switch |
Weight | 1 lb 2 oz (500 g) |
- The magnetically-actuated switching architecture offers superior performance.
- Longer product life because of the free-swinging vane, which uses a straightforward lever arm without bellows, springs, or seals to break to activate a snap switch by drawing in a magnet inside the solid metal switch body.
- Dependable, leak-proof body made from bar material that satisfies application standards.
- Strong vane design with a long working life that is field trimmable for set point adjustment and rigid.
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