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NORMALLY OPEN
6-31/32 [177.00]
[17.46]
SERIES V7
FLOTECT® VANE OPERATED FLOW SWITCH
FLOW
Magnetic Linkage, UL Approved
3/4
[19.05]
NORMALLY
1 NPT
11/16
A
The Series V7 Flotect® Vane Flow Switch is an inexpensive range switch for use
with compatible liquids to start or stop electronic operated equipment when ow or noow conditions occur. Design is standard weatherproof, meeting NEMA 4X.
BENEFITS/FEATURES
• Superior performance with magnetically-actuated switching design
• Increased product life due to free-swinging vane, which attracts a magnet within the
solid metal switch body to actuate 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
• Long operating life with robust vane design which is rigid and eld trimmable for set
point adjustment
APPLICATIONS
• Proof of boiler ow
• Shuts down burner when air
ow through heating coil fails
• Protects pumps, motors and
other equipment against low
or no ow
• Stops liquid cooled engines,
machines and processing
when coolant ow is
interrupted
APPROXIMATE ACTUATION/DEACTUATION
FLOW RATES FOR COLD WATER; GPM (LPM)
Pipe Size Actuate Deactuate
1˝
1-1/4˝
1-1/2˝
2˝
2-1/2˝
3˝
4˝
Note: Contact the factory for different actuationdeactuation rates.
7.5 (28.4)
8.1 (30.8)
11.7 (44.1)
16.9 (64.0)
19.6 (74.2)
31.6 (120)
58.0 (218)
6.8 (25.7)
7.6 (28.9)
10.9 (41.3)
15.6 (59.1)
18.1 (68.5)
29.6 (112)
52.0 (197)
Pipe Size Dim. A Pipe Size Dim. A
1
1-1/4
1-1/2
CLOSED
COMMON
GROUND
1-3/8 [34.93]
1/2 FEMALE
3.702
SPECIFICATIONS
Service: Liquids compatible with wetted
materials that are non-coating and noncrystallizing.
Wetted Materials: Vane: 301 SS;
Process connection: Brass or 316 SS;
Magnet: Ceramic; Other: 301, 302 SS.
Upper Body Material: Die cast
aluminum.
Temperature Limits: -40 to 250°F (-40
to 121°C).
Pressure Limits: 250 psi (17.2 bar).
Enclosure Rating: Weatherproof, meets
NEMA 4X (IP66).
Switch Type: SPDT snap switch.
Electrical Rating: 10 A @ 125, 250,
480 VAC; 1/8 hp @ 125 VAC, 1/4 hp @
250 VAC.
MODEL CHART
Model Body Material
V7-WBS-30N
V7-WSS-30N
.554
Brass
316 SS
NPSM
1-17/64 [32.15]
1-19/32 [40.48]
1-53/64 [46.43]
Electrical Connections: 3 screw type,
common, normally open and normally
closed.
Conduit Connection: 1/2˝ NPSM.
Process Connection: 1˝ male NPT.
Contact factory for optional tees.
Pipe Size: 1˝ to 4˝.
Mounting Orientation: Horizontal or
vertical (actuation ow rates are based
on horizontal pipe runs in the vertical
position). Will not work in vertical pipe
with down ow.
Set Point Adjustment: Vane is
trimmable, see set point chart.
Weight: 1 lb 2 oz (500 g).
Compliance: CE, UL.
USA: California Proposition 65
WARNING: This product can expose
you to chemicals including Lead, which
is known to the State of California to
cause cancer and birth defects or other
reproductive harm. For more information
go to www.P65Warnings.ca.gov.
2
3
4
2-11/64 [55.17]
2-11/64 [55.17]
2-11/64 [55.17]
2-37/64
[65.48]
2X 47/6
[18.65]
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