Flotect Series V4 Vane Flow
Switch
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Field Adjustable - 1.5" to
20 inch piping. Leak proof body. CE | UL | SA | Ex. | FM Approved |
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Compact
and reliable, the Flotect V4 Flow Switch operates automatically
to protect equipment and pipeline systems against damage from
reduction or loss of flow. |
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Installed in thousands of pipelines
and processing plants around the world, this unique magnetically
actuated switching design assures superior performance. Universal
multi layer vane accommodates pipe sizes from 1-1/2" up.
Custom vanes are available with factory calibration. There
are no bellows, springs or seals to fail. Instead, a free-swinging
vane attracts a magnet within the solid metal switch body above,
actuating a SPDT snap switch by means of a simple lever arm.
Features
include: simplicity of design and a leak proof switch
body, precision machined from solid bar stock for pressures
to 2000
psig (140 kg/cm2), eliminating the chance of process fluid
entering the switch compartment. The threaded conduit enclosure
cover
permits easy inspection or replacement of electrical assembly
without shutting down the process - once power has been disconnected.
The control fits directly into pipeline with a tee, thread-o-let
or flange for fast, easy installation. Pendulum-like vane
action responds accurately and consistently to fluid flow
rates. Both
multi layer universal and custom vanes are sensitive to low
velocity flows yet are rugged enough to withstand high flow
surges.
Applications: Protects motors, pumps and other equipment
against low or no flow. Controls sequential operation of pumps,
etc. Automatically starts auxiliary pumps and engines or actuates
alarm and signal systems. Stops water cooled engines, machines
and processes when coolant flow is interrupted. Shuts down burner
when air flow through heating coil fails. Controls dampers according
to flow. Stops machines if lubricating oil flow ceases.
{module_literature,c,86798}
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PHYSICAL
DATA |
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 SAA].
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 [meets NEMA 4 (IP65)] and Explosion-proof. Listed with UL and CSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX CE 0344 EX II 2 G EEx d IIB T6 -20°C≤Tamb≤75°C, EC-Type Certificate No.: KEMA 03ATEX 2383. SAA: Exd C T6 (T amb=60°C), Zone I. Also FM approved.
Switch Type: SPDT snap switch standard, DPDT snap switch optional.
Electrical Rating: UL, FM ATEX and SAA models 10A @ 125/250 VAC. CSA models: 5A @ 125/250 VAC; 5A res., 3A ind. @ 30 VDC . MV option: 1A @125 VAC; 1A res., .5A ind. @ 30 VDC. MT option: 5A @ 125/250 VAC. [MT and MV option not UL, CSA, FM, ATEX or SAA].
Electrical Connections: UL and CSA models: 16 AWG, 6" (152 mm) long. ATEX and SAA unit: Terminal block
Conduit Connection: 3/4" female NPT.
Process Connection: 1-1/2" male NPT.
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: UL, CSA, CE, FM, SAA and ATEX. |
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Actuation
- Deactuation Ranges with Universal Vane |
Cold Water - As low as 8.8 - 3.0 GPM (2.0 - 0.7 M3HR) in 1-1/2" pipe
up to 2900-1100 GPM (659 - 250 M3HR) in 20" pipe.
Air - As low as 6.1 - 25 SCFM (0.03 - .012 NM3/S) in 1-1/2" pipe
up to 14,300 - 5900 SCFM (6.7 - 2.8 NM3/S) in 20" pipe. (Consult
factory for more detailed flow information). |
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Model
Numbers
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Description
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Availability
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V4-2-U
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Brass, Universal Vane
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In Stock
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V4-SS-2-U
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316SS*, Universal Vane
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In Stock
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V4-2-U-D
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Brass, Universal Vane, DPDT Contacts
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Ships within 2 Weeks
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V4-SS-2-U-D
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316SS*, Universal Vane, DPDT Contacts
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Ships within 2 Weeks
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V4
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Brass, Custom Vane
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Ships within 2 Weeks
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V4-SS
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316SS*, Custom Vane
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Ships within 2 Weeks
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*316 SS body, float and vane with
430SS magnet keeper (wetted part). For 316SS magnet
keeper specify: With all 316SS parts. |
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Options for Series V4 Flotect
Switches |
-D
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DPDT Contacts |
-MV
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Gold Plated Contacts, options for dry circuits see electrical rating in specification, no listings or approvals). |
-MT
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High temperature construction (400°F). Not UL, CSA or CENELEC
listed. |
-TRD
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decreasing flow, Time Delay Relay, option with 2 SPDT contacts, adjustable from 0-1 to 0-31 minutes. (no listings or approvals). See Note 1 |
-TRI
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increasing flow, Time Delay Relay, option with 2 SPDT contacts, adjustable from 0-1 to 0-31 minutes. (no listings or approvals). See Note 1 |
-316
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316 SS Magnet Keeper, option to replace standard 430 SS. |
-V
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Vertical Up Flow, option for upward flow in vertical pipe. |
-AT
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Atex listed construction. |
-FLG
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Flanged Mounting Connection. Example: 2" 150#RF |
-EPOXY
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Epoxy Coated Housing (Enclosure) |
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Note (1): Time Delay Relay. (2) SPDT, adjustable from 0-1 to 0-31 minutes. Not UL, CSA or CENELEC listed. |
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Actuation
- Deactuation Flow Rates Table (printable) |
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