Model Options

Name: Dwyer Instruments V4-2-U | Vane operated flow switch | Brass body | Universal vane
Brand: Dwyer
SKU: V4-2-U
Rating: 5 (1 reviews)

Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

Weight

Set Point

Connection

Approvals

Mounting

Manufacturer Dwyer Instruments

Maximum operating temperature

Maximum Operating Pressure

Enclosure Rating

Rating

Switch Type

Type

Material

Dwyer Instruments V4-2-U | Vane operated flow switch | Brass body | Universal vane

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Part Number : V4-2-U

Robust and dependable, the Model V4-2-U Flotect® Flow Switches are perfect for automatically safeguarding pipeline systems and equipment against harm caused by flow reduction or loss. This series has been tried and proven in thousands of pipeline installations and processing facilities worldwide. It is weatherproof, NEMA 4 compliant, and explosion-proof (specifications include a listing). Use this series on pipes up to 1-1/2" (38.10 mm).

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Specifications

Details

Manufacturer

Dwyer Instruments

Type

Vane operated flow switch

Material

Wetted: 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)

Maximum operating temperature

-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)

Maximum Operating Pressure

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 and Explosion-proof. **Listed with UL and CSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX CE 2813 EX II 2 G Ex db IB T6 Gb -20°C≤Tamb≤73°C. -20°C≤Process Temp≤73°C. EU-Type Certificate No.: KEMA 03 ATEX 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≤Process Temp≤73°C. IECEx Certificate of Conformity: IECEx DEK 11.0071. IECEx Standards: IEC 60079-0: 2011
IEC 60079-1: 2014. Zone I. Also FM approved

Rating

Electrical: 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]

Connection

Electrical: UL and CSA models: 16 AWG, 6" (152 mm) long. ATEX and IECEx unit: Terminal block

Connection

Conduit: 3/4" female NPT or 19.05 mm standard or M25 with -BSPT option

Connection

Process: 1-1/2" male NPT or 1-1/2" male BSPT or 38.10 mm

Mounting

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)

Approvals

ATEX, CE, CSA, FM, IECEx, UL

Switch Type

SPDT snap switch standard, DPDT snap switch optional