Dwyer Omega – Series V4 FLOTECT® Flow Switches: Weatherproof, Explosion-Proof, Low Flow Protection
Product Code: Series V4
Manufacturer: Dwyer Omega
The Series V4 Flotect® Flow Switches are rugged and reliable, ideal for automatically protecting equipment and pipeline systems against damage from reduction or loss of flow. Time tested in thousands of pipeline installations and processing plants around the world this Series is Weatherproof, designed to meet NEMA 4 and Explosion-proof (listing included in the specs). This series can be used in pipes 1-1/2″ (38.10 mm) and up.
Applications
Fluid Measurement and Control, HVAC, Oil, Pump Control, Fluid Measurement and Control, HVAC, Oil, Pump Control
Compliance
Hazardous Location Rated
Electrical Connection
3/4 in NPT male Conduit with Screw Terminal block, 3/4 in NPT male Conduit with Screw Terminal block
Enclosure Ratings
Hazardous Location Rated, Weatherproof
Enclosure Ratings Note
Weatherproof and Explosion-proof
Media Compatibility
Alcohols, Argon, Compatible Gases, Compatible Liquids, Nitrogen, Oils, Water, Alcohols, Argon, Compatible Gases, Compatible Liquids, Nitrogen, Oils, Water
Mounting Orientation
± 5° from Vertical, ± 5° from Vertical
Operating Temperature, Max
275 °F, 275 °F
Operating Temperature, Min
-4 °F, -4 °F
Pipe Size, Min
1.5 in, 1.5 in
Process Connection Size
1 1/2 in, 1 1/2 in
Process Connection Type
NPT Male, NPT Male
Process Temperature, Max
163 °F, 163 °F
Process Temperature, Min
-4 °F, -4 °F
Set Point Adjustment
Vane adjustments, Vane adjustments
Switch Rating
10 A @ 125/250 Vac, 10 A @ 125/250 Vac
Switch Rating Note
UL, FM, ATEX and IECEx models 10 A @ 125/250 VAC (V~). CSA models: 5 A @ 125/250 VAC (V~); 5 A res., 3 A ind. @ 30 VDC(V ). MV option: 1 A @125 VAC (V~); 1 A res., .5 A ind. @ 30 VDC (V ). MT option: 5 A @ 125/250 VAC (V~). [MT and MV option not UL, CSA, FM, ATEX or IECEx]
Weight
1.9 kg
Wire Gauge
16 AWG
- Unique magnetically actuated switching design gives superior performance
- Features a free-swinging vane which attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm with no bellows, springs, or seals to fail
- Leak proof body machined from bar stock
- Electrical assembly can be easily replaced without removing the unit from installation so that the process does not have to be shut down
- Installs directly and easily into pipeline with a thredolet, tee, or flange (see application drawings)
- High pressure rating of 1000 psig (69 bar) with the brass body and 2000 psig (138 bar) with the 316 SS body
- Choice of custom vane calibrated for your application, Model V4, or field adjustable multilayer vane, Model V4-2-U (see set point chart)
