Description
Flow includes Flow Transmitters, Flow Sensors, Flowmeters, Sight Flow Indicators and Water Meters. Mass Flowmeters, Controllers, Flow Indicators and Controllers are ideal for measurement of flow rates. Flow Switches come as paddle, thermal, piezo, and shuttle/piston. Flow Switch Sensors with an electrical contact output at a specific flow rate have different types of switches, which are paddle, thermal, piezo, and shuttle/piston.
Paddle flow switches or vane sensors with an electrical contact output are at a specific flow rate. Dwyer flow switches are economical and reliable. Applications include proof of boiler flow, air conditioning, controlling of dampers according to flow, and protecting pumps, motors and other equipment against low or no flow. The Series V7 Flotect® Flow Switch is an inexpensive range switch for use with compatible liquids to start or stop electronic operated equipment when flow or no-flow conditions occur. Design is standard weatherproof, meeting NEMA 4X.
Features
- 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
- Lower body is machined solid metal bar stock assuring no leak points, no matter how long the unit is in service
- Robust vane design is rigid and field trimmable for set point adjustment
Application
- Proof of boiler flow
- Shuts down burner when air flow through heating coil fails
- Protects pumps, motors and other equipment against low or no flow
- Stops liquid cooled engines, machines and processing when coolant flow is interrupted
Specification
Service | Compatible gases and liquids. |
Wetted Materials | Body: Acrylic plastic; O-ring: Buna-N (fluoroelastomer available); Metal parts: SS; Float: SS; Fittings: VFC: PVC; VFCII: Acetal thermoplastic. |
Temperature & Pressure Limits | 100 psig (6.9 bar) @ 120°F (48°C); |
Accuracy | 2% of FS. |
Process Connection | VFC: 1″ female NPT back connections. End connections optional. VFCII: 1″ male NPT back connections. End connections optional. |
Scale Length | 5″ typical length. |
Mounting Orientation | Mount in vertical position. |
Weight | 24 to 25 oz (.68 to .71 kg). |
Agency Approvals | Meets the technical requirements of EU Directive 2011/65/EU (RoHS II). |
Download Data Sheet: Series V7 Flotect® Vane Operated Flow Switch
Ref: dwyer-inst.com
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