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Model
FS-2

Vane Flow Switch
Low Cost, Field Adjustable Set Point

SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Bellow: Tin-bronze; Vane: Stainless Steel; Body: Forged brass.
Temperature Limits: 230°F (110°C).
Pressure Limits: 145 psig (10 bar).
Enclosure Rating: NEMA 4 (IP64).
Switch Type:
SPDT snap switch.
Electrical Rating: 10 A res, 3 A ind @ 250 VAC.
Electrical Connection: Cable gland with attached wire leads.
Process Connection: 1" male NPT.
Mounting Orientation: Switch must be installed vertically on horizontal pipe runs.
Set Point Adjustment: Four vane combinations and an adjustment screw.
Enclosure:
Die-cast aluminum alloy.
Weight: 28.22 oz (0.8 kg).
Agency Approvals:
CE.

FLOW RATE CHART
Pipe
Diameter
(inch)
Vane
Length
in (mm)
Dim. X
Approximate Actuation and Deactuation
Flow Rates for Water
Minimum Setting
GPM (LPM)
Maximum Setting
GPM (LPM)
Actuate
Deactuate
Actuate
Deactuate
1
1.34 (34)
4.0 (15.0)
1.8 (6.7)
8.8 (33.3)
6.6 (25.0)
1-1/4
1.34 (34)
5.3 (20.0)
2.6 (10.0)
11.4 (43.3)
8.4 (31.7)
1-1/2
2.24 (57)
7.0 (26.7)
4.0 (15.0)
14.5 (55.0)
11.4 (43.3)
2
2.24 (57)
14.1 (53.3)
9.7 (36.7)
31.3 (118.3)
22.5 (85.0)
2-1/2
3.46 (88)
18.5 (70.0)
15.4 (58.3)
35.2 (133.3)
30.8 (116.7)
3
3.46 (88)
27.7 (105.0)
25.1 (95.0)
52.8 (200.0)
46.2 (175.0)
4
3.46 (88)
59.4 (225.0)
52.8 (200.0)
123.3 (466.7)
114.5 (433.3)
5
6.57 (167)
52.8 (200.)
39.6 (150.0)
132.1 (500.0)
123.3 (466.7)
6
6.57 (167)
75.7 (286.7)
52.8 (200.0)
154.1 (583.3)
140.9 (533.3)
8
6.57 (167)
184.9 (700.0)
158.5 (600.0)
396.3 (1500.0)
374.2 (1416.7)


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