Product Overview
101
Flow Switches
McDonnell & Miller
• For general purpose applications requiring low flow rate
sensitivity
• In-line configuration eliminates need for a pipe tee
• S i z es ava i l a bl e
–
3
⁄
4
" NPT
– 1" NPT
• Materials of construction
– Brass, carbon & EPDM elastomer (for water);
Models FS5 & FS5-D
– Stainless steel, carbon & Buna N (for water or
water and petroleum base compounds)
Models FS5-S & FS5-DS
• Single pole, double throw snap switch
• Sensitivity adjusting screw makes flow adjustment easy
• Optional feature
– BSPT threads
• Minimum temperature (fluid or ambient) 32°F (0°C)
• Maximum temperature
225°F (107°C) – Stainless Steel models
250°F (121°C) – Brass
• Maximum operating pressure 150 psi (10.5 kg/cm
2
)
Series FS5
F l o w Switches – Liquid
Series FS5
General Purpose Liquid Flow Switches
D i m e n s i o n s , i n . ( m m )
A B C D
3
7
⁄
16
(87) 1
9
⁄
16
(40) 1
5
⁄
16
(33) 3
3
⁄
16
(56)
E F G H
5
1
⁄
16
(129) 3
1
⁄
4
(83)
7
⁄
8
(22) 1
19
⁄
32
(40.5)
J K L M
3
3
⁄
16
(81)
7
⁄
8
(22) 1
3
⁄
8
(35) 1
11
⁄
16
(43)
F l ow Rates
Pipe
Mode of Operation
Size NPT Flow No Flow
in. Settings gpm (lpm) gpm (lpm)
3
⁄
4
F a c t o r y or
o r M i n i m u m 1 . 5 ( 5 . 7 ) 1 . 1 ( 4 . 2 ) 1 6 . 6 2 ( 6 2 . 9 )
1
M a x i m u m 1 5 ( 5 6 . 8 ) 1 0 ( 3 7 . 9 ) 2 7 ( 1 0 2 . 2 )
Values are ± 10%
O r dering Info r m a t i o n
Model Part Weight
Number Number Description lbs. (kg)
F S 5 -
3
⁄
4
1 1 4 7 6 0 General purpose flow switch 2 . 5 ( 1 . 1 )
3
⁄
4
"
N P T
F S 5 - D -
3
⁄
4
1 1 4 7 6 3 F S 5 -
3
⁄
4
w/2 SPDT s w i t c h e s 2 . 5 ( 1 . 1 )
F S 5 - J -
3
⁄
4
1 1 4 7 6 5 F S 5 -
3
⁄
4
w/BSPT connections 2 . 5 ( 1 . 1 )
F S 5 - 1 1 1 4 7 8 0 General purpose flow switch 2 . 5 ( 1 . 1 )
1" NPT
F S 5 - D - 1 1 1 4 7 8 3 FS5-1 w/2 SPDT switches 2 . 5 ( 1 . 1 )
F S 5 - J - 1 1 1 4 7 8 5 FS5-1 w/BSPT connections 2 . 5 ( 1 . 1 )
F S 5 - S - 1 1 1 4 7 9 5 FS5-1 w/SS body 2 . 3 ( 1 . 0 )
F S 5 - D S - 1 1 1 4 7 9 3 FS5-1 w/SS body, 2 SPDT switches 2 . 5 ( 1 . 1 )
F S 5 - J -
3
⁄
4
- E 1 1 4 7 6 6 F S 5 - J -
3
⁄
4
- CE conformance rated 2 . 5 ( 1 . 1 )
F S 5 - J - 1- E 1 1 4 7 8 7 F S 5 - J - 1 - CE conformance rated 2 . 5 ( 1 . 1 )
Electrical Ratings
Motor Switch Rating (Amperes)
Voltage Full Load Locked Rotor Pilot Duty
120 VAC 7.4 44.4
125 VA at
240 VAC 3.7 22.2
120 or 240 VAC
50 or 60 cycles
NOTE: DO NOT USE LIQUID FLOW SWITCHES ON
SYSTEMS WITH FLOW GREATER THAN
10 FEET (3M) PER SECOND.
(for specified models)
See page 132 for CE Confo r mance info r m a t i o n
Max. Flow
Rate gpm
(lpm) w/o
Paddle
Damage
12.FlowSwitches 96-103• 3/6/07 2:05 PM Page 101