Dwyer Instruments SERIES V8 Catalog Page
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SERIES V8 | W. E. ANDERSON™ BY DWYER
FLOTECT® VANE OPERATED FLOW SWITCHES
Field Adjustable – 1 to 6 Inch Pipe, Leak Proof Body, Chemical Resistance
[3] 18 AWG
LEAD WIRES,
18 [460] LONG
1.650 DIA. [42]
1/2 NPTM
FLOW
SWITCH BOD
1 5/16 [34]
OCTAGON
1 NPTM
FIELD
TRIMMABLE
VANE
9 3/8
[238]
3 1/16
[78]
5 1/4
[134]
TRAVEL
E
O
D
I
V
O
N
L
I
N
V8 V8-WP V8-WP2
The Series V8 Flotect® Vane Operated Flow Switches are ideal for protecting
unattended equipment from damage or loss of production. This Series is available for
installation in a 1 to 6˝ pipe with operating pressures are up to 150 psig (10 bar) and
temperatures to 212°F (100°C).
FEATURES/BENEFITS
• UL recognized as an industrial motor controller per UL standard 508, suitable for
mounting in a protected environment
• Magnetically actuated switching design gives superior performance with free swinging vane which attracts a magnet within the switch body, actuating a snap
switch with no bellows, springs, or seals to fail
• Leak proof body and vane constructed of tough durable polyphenylene sulde which
has excellent chemical resistance
• A full size trimmable vane is provided with molded-in graduations
APPLICATIONS
• Chemical processing
• Air conditioning
• Refrigeration
• Heating systems
• Cooling lines
• Machinery
• Liquid transfer systems
• Water treatment
• Food processing
• Machine tools
APPROXIMATE ACTUATION/
DEACTUATION FLOW RATES
FOR COLD WATER; GPM (LPM)
Pipe Size Actuate/Deactuate
1˝
1-1/4˝
1-1/2˝
2˝
3˝
4˝
6˝
10.8/9.1 (40.9/34.6)
9.8/8.3 (37.2/31.4)
8.6/6.8 (32.4/25.7)
10.9/8.8 (41.2/33.4)
12.9/8.9 (48.8/33.5)
21.1/13.8 (79.7/52.2)
45/33 (170.2/124.7)
APPROXIMATE ACTUATION/
DEACTUATION FLOW RATES
FOR AIR; SCFM (LPM)
Pipe Size Actuate/Deactuate
1˝
1-1/4˝
1-1/2˝
2˝
3˝
4˝
6˝
39/32.6 (1105/923)
37.5/32.2 (1062/912)
33.4/26.7 (945/757)
43/36.8 (1218/1042)
52.7/38.9 (1493/1100)
87.6/63.6 (2482/1802)
168.6/137.4 (4775/3890)
1/2 NPTM
1-21/32
[41.31]
1-5/16
OCTAGON
[33.34]
1 NPTM
FIELD
TRIMMABLE
VANE
1/64
[309.17]
3-1/16
[77.79]
5-1/4
[133.35]
1 NPTM
FIELD
TRIMMABLE
VANE
11.800
[299.72]
3-1/16
[77.79]
5-1/4
[133.35]
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials: Vane and body: Polyphenylene Sulde (PPS); Pin and spring:
316 SS or Inconel
®
; Magnet: Ceramic 8.
Temperature Limit: 212°F (100°C).
Pressure Limit: 150 psig (10.34 bar).
Enclosure Rating: General purpose, WP/WP2 option is weatherproof.
Switch Type: SPDT snap switch, MV option: SPDT gold contact snap switch.
Electrical Rating: 5 A @ 125/250 VAC, 5 A resistive, 3 A inductive @ 30 VDC;
MV option: 1 A @ 125 VAC, 1 A resistive, 0.5 A inductive @ 30 VDC.
Electrical Connections: 18 AWG, 18˝ (460 mm) long.
Conduit Connection: 1/2˝ male NPT, 1/2˝ female NPT on WP and WP2.
Process Connection: 1˝ male NPT.
Mounting Orientation: Actuation/deactuation ow rates are based on horizontal
pipe runs and are nominal values. Unit cannot be used with vertical down ow.
Set Point Adjustment: Vane is trimmable.
Weight: 4.5 oz (0.13 kg).
Agency Approvals: CE, cURus.
MODEL CHART
Model Description
V8 Flow switch
OPTIONS
To order
add sufx: Description
-MV Gold plated contacts, for dry circuits; rated 1A @ 125 VAC; 1A
resistive, 0.5A inductive @ 30 VDC
Example: V8-MV
-INC Inconel
®
alloy option; Inconel® alloy replaces standard 316 SS wetted
parts; wetted parts are Inconel
®
alloy, ceramic 8, and polyphenylene
sulde
Example: V8-INC
-WP Weatherproof enclosure; optional housing is phenylpolioxide and
provides weatherproof protection for electrical wiring; not UL approved
Example: V8-WP
-WP2 Optional housing is aluminum and provides weatherproof protection for
electrical wiring; not UL approved
Example: V8-WP2
Inconel® is a registered trademark of Huntington Alloys Corporation
DWYER INSTRUMENTS, INC. |
1/2 NPTM
1-21/32
[41.31]
1-5/16
OCTAGO
[33.34]
Flow Switches,
Paddle
275
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