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V4-2-U | Vane operated flow switch | brass body | universal vane. | Dwyer Instruments
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Details for V4-2-U
Flotect FlowSwitch: V4-2-U by Dwyer Instruments
Dwyer Instruments' Flotect FlowSwitch V4-2-U is a brass-bodied flow switch designed for reliable flow detection in industrial applications. Its compact design and durable construction make it ideal for use in tight spaces and harsh environments.
Key Features:
- Detects flow rates as low as 0.05 GPM
- Brass body provides superior corrosion resistance
- Manual reset button for easy maintenance
- SPDT contact configuration for versatile control
- UL/CSA listed for safety and reliability
Applications:
- Monitoring flow in water, oil, and gas lines
- Controlling pumps, valves, and alarms
- Protecting equipment from damage due to low flow conditions
- Detecting leaks and blockages
At our HVAC supply store, we offer the best prices and fast shipping for Flotect FlowSwitches. Contact us today to learn more and place your order!
SERIES V4 FLOTECT® VANE-OPERATED FLOW SWITCH
Field Adjustable – Dependable Protection Against Flow Variation or Stopping in Pipelines for Fluids, Gases and Flowing Solids
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 specifications). This series can be used in pipes 1-1/2" (38.10 mm) and up.
Product Applications
- Protects pumps, motors and other equipment against low or no flow
- Controls sequential operation of pumps
- Automatically starts auxiliary pumps and engines
- Stops liquid cooled engines, machines and processing when coolant flow is interrupted
- Shuts down burner when air flow through heating coil fails
- Controls dampers according to flow
- Superior performance with unique magnetically-actuated switching design
- Increased product life due to free-swinging vane, which attracts a magnet within the solid metal switch body and actuates a snap switch by means of a simple lever arm with no bellows, springs, or seals to fail
- Meets application requirements with durable leak-proof body machined from bar stock
- Save time and money on maintenance with electrical assembly that can be easily replaced without removing the unit from installation so that the process does not have to be shut down
- Quick installation with fitting that installs directly and easily into pipeline with a threadolet, tee, or flange (see application drawings)
- Meets the most demanding applications with high pressure rating of 1000 psig (69 bar) for the brass body and 2000 psig (138 bar) for the SS body
- Solves customer flow application needs with choice of custom vane calibrated specifically for your application, Model V4, or field adjustable multilayer vane, Model V4-2-U (see set point chart)
Specifications
- Series
- V4 FLOTECT® VANE-OPERATED FLOW SWITCH
- Category/Type
- Flow
- Type
- Flow Switches
- Series
- V4 FLOTECT® VANE-OPERATED FLOW SWITCH
- Service
- Gases or liquids compatible with wetted materials.
- Wetted Materials
- Vane: 316 SS; Body: Brass or 316 SS standard; Magnet Keeper: 430 SS standard; 316 SS optional; Options: Other materials also available; consult factory (e.g. PVC; Hastelloy; Nickel; Monel; Titanium).
- Temperature Limit
- -4 to 275°F (-20 to 135°C) standard; MT high temperature option 400°F (205°C) [MT option not UL; CSA; ATEX or IECEx] ATEX and IECEx options; ambient temperature -4 to 163°F (-20 to 73°C); Process temperature -4 to 163°F (-20 to 73°C).
- Pressure Limit
- Brass body 1000 psig (69 bar); 316 SS body 2000 psig (138 bar); optional 5000 psig (345 bar) available with 316 SS body and SPDT switch only.
- Enclosure Rating
- Weatherproof andExplosion-proof. **Listed with UL andCSA for Class I; Groups C and D;Class II; Groups E; F; and G.ATEX CE 2813 EX II 2 G Ex db IB T6Gb -20°C≤Tamb≤73°C.-20°C≤Process Temp≤73°C.EU-Type Certificate No.: KEMA 03ATEX 2383.ATEX Standards: EN 60079-0:2012+A11:2013;EN 60079-1:2014. IECEx Certified: For Ex db IB T6 Gb -20°C≤Tamb≤73°C. -20°C≤ProcessTemp≤73°C.IECEx Certificate of Conformity: IECExDEK 11.0071.IECEx Standards: IEC 60079-0: 2011;IEC 60079-1: 2014.Zone I. Also FM approved.
- Switch Type
- SPDT snap switch standard; DPDT snap switch optional.
- Electrical Rating
- UL; FM; ATEX and IECEx models 10 A @ 125/250 VAC. CSA models: 5 A @ 125/250 VAC; 5 A res.; 3 A ind. @ 30 VDC . MV option: 1 A @125 VAC; 1 A res.; .5 A ind. @ 30 VDC. MT option: 5 A @ 125/250 VAC. [MT and MV option not UL; CSA; FM or ATEX or IECEx].
- Electrical Connections
- UL and CSA models: 16 AWG; 6" (152 mm) long. ATEX and IECEx unit: Terminal block.
- Conduit Connection
- 3/4" female NPT or 19.05 mm standard or M25 with -BSPT option.
- Process Connection
- 1-1/2" male NPT or 1-1/2" male BSPT or 38.10 mm.
- Mounting Orientation
- Within 5° of vertical for proper operation. Units for horizontal installation (vertical pipe with up flow) available.
- Set Point Adjustment
- For universal vane: five vane combinations.
- Weight
- 4 lb 8 oz (1.9 kg).
- Agency Approvals
- ATEX; CE; CSA; FM; IECEx; UL**.
- **No housing option (-NH) has no approvals
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