Dwyer Instruments V4 Flotect Serie Betriebsanleitung

Series V4 Flotect
Specifications - Installation and Operating Instructions
Rugged and reliable the Flotect
®
automatically to protect equipment and pipeline systems against damage from
reduction or loss of flow. The V4 is time tested being installed in thousands of pipelines
and processing plants around the world. A unique magnetically actuated switching
design gives superior performance. There are no bellows, springs, or seals to fail.
Instead, a free-swinging vane attracts a magnet within the solid metal switch body,
actuating a snap switch by means of a simple lever arm.
FEATURES
• Leak proof body machined from bar stock
• Choice of custom vane calibrated for your application, Model V4, or field adjustable
multilayer vane, Model V4-2-U (see set point chart on page 4)
• Weatherproof, designed to meet NEMA 4
• Explosion-proof (listing included in specifications)
• Installs directly and easily into pipeline with a thredolet, tee, or flange (see
application drawings on page 4)
• Can be used in pipes 1-1/2˝ and up
• Electrical assembly can be easily replaced without removing the unit from
installation so that the process does not have to be shut down
• High pressure rating of 1000 psig (69 bar) with the brass body and 2000 psig (138
bar) with the 316 SS body
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
Notes:
• Check all ratings given in the instructions and on the product to make sure that the
product is suitable for your application. Do not exceed electrical ratings, pressure
ratings, or temperature ratings of the product.
• Disconnect power supply before beginning installation to prevent possible
equipment damage or electrical shock.
MAINTENANCE
Inspect and clean wetted parts at regular intervals. The cover should be in place at all
times to protect the internal components from dirt, dust, and weather, and to maintain
hazardous location ratings. Disconnect device from the supply circuit before opening
to prevent ignition of hazardous atmosphere. Repairs to be conducted by Dwyer
Instruments, Inc. Units in need of repair should be returned to the factory prepaid.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Vane Operated Flow Switch
®
V4 Vane Operated Flow Switch operates
3-11/32
[84.93]
2-23/32
1-5/8 [41.28]
[69.06]
CLEARANCE FOR
COVER REMOVAL
6-3/4
[171.45]
4-11/16
8
[119.06]
[203.20]
1
[25.40]
SPECIFICATIONS
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 and explosion-proof. Listed with UL and CSA for
Class I, Groups C and D; Class II, Groups E, F, and G.
ATEX 2813 II 2 G Ex db IIB T6 Gb -20°C≤Tamb≤73°C.
-20°C≤Process Temp≤73°C.
EU-Type Certificate No.: KEMA 03 ATEX 2383.
ATEX Standards: EN60079-0: 2012 + A11: 2013; EN60079-1: 2014.
IECEx Certified: For Ex db IIB 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.
Switch Type: SPDT snap switch standard, DPDT snap switch optional.
Electrical Rating: UL, FM, ATEX and IECEx models 10A @ 125/250 VAC (V~).
CSA models: 5A @ 125/250 VAC (V~); 5A res., 3A ind. @ 30 VDC (V
option: 1A @125 VAC (V~); 1A res., .5A ind. @ 30 VDC (V
125/250 VAC (V~). [MT and MV option not UL, CSA, FM, ATEX or IECEx].
Electrical Connections: UL and CSA models: 16 AWG, 6˝ (152 mm) long. ATEX or
IECEx unit: Terminal block.
Conduit Connection: 3/4˝ female NPT or M25 x 1.5 with -BSPT option.
Process Connection: 1-1/2˝ male NPT or 1-1/2˝ male BSPT.
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).
Phone: 219-879-8000
Fax: 219-872-9057
Bulletin E-71
UL AND CSA TYPE INCLUDES 16 GA LEADS,
6 [152.4] LONG. ATEX VERSION INCLUDES
TERMINAL BLOCK
EXPLOSION-PROOF HOUSING WITH 3/4˝ [19.05 MM]
FEMALE NPT OR BSPT CONDUIT CONNECTION
SWITCH BODY, SAE 72 BRASS OR 316 SS
1-1/2˝ [38.10 MM] MALE NPT OR BSPT
PROCESS CONNECTION
MAGNET KEEPER, 430 SS
VANE BLOCK, 316 SS
FIVE LAYER VANE 316 SS
DESIGNED FOR 1-1/2˝ TO 8˝ [38.10 TO 203.20 MM]
PIPES USABLE IN LARGER PIPE SIZES.
). MV
). MT option: 5A @
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e-mail: info@dwyermail.com