Xylem MM 619F User Manual
Series FS6
Flow Switch
INSTRUCTION MANUAL
MM-619F
SPECIFICATIONS
Maximum Liquid Pressure: 100 psi (7 kg/cm2)
Liquid Temperature Range (T
Ambient Temperature Range (T
): 32 - 225˚F (0 - 107˚C)
L
): 32 - 120˚F (0 - 49˚C)
S
Electrical Enclosure Rating: Nema Type 1 (IP 21) (All models except “W”)
Nema Type 4X (IP 56) (“W” models)
Maximum Velocity: 10ft/sec (3M/sec)
Pipe Connection Thread Size:
3
/4” or 1” NPT (All models except “J”)
3
/4” or 1” BSPT (“J” models)
ELECTRICAL RATINGS
Motor Switch Rating (Amperes)
Voltage Full Load Locked Rotor Pilot Duty
120 VAC 7.4 44.4
240 VAC 3.7 22.2
125 VA at
120 or 240 VAC
50 or 60 cycles
2
FLOW RATES
FS6 VELOCITIES IN FPS
40
30
20
10
VELOCITY IN FEET PER SECOND
GPM CAPA
CITY
10 20 30 40 50 60 70
FS6-
3
/
4
"
PIPE
FS6-1"
PIPE
Flow rates required to activate the flow switch
are shown in chart below.These values were
calculated using clean water in a horizontal pipe.
Flow Rates
Pipe
Mode of Operation
Size NPT Flow No Flow
in. (mm) Settings gpm (lpm) gpm (lpm)
3
4
⁄
or Minimum .12 (.45) .06 (.23)
1 (25)
Values are ± 10%
90
80
70
60
50
40
30
20
DIFFERENTIAL PRESSURE
10
Factory or
(20)
Maximum 2.5 (9.46) 1.5 (5.68)
FS6 SERIES PRESSURE DROP
Max. Flow
Rate gpm (lpm)
w/o Paddle
Damage
70 (265)
Settings will vary when used to sense flow of other
fluids.
NOTE: THIS PRODUCT IS NOT INTENDED
FOR USE IN POTABLE WATER
APPLICATIONS.
NOTE: DO NOT USE LIQUID FLOW
SWITCHES ON SYSTEMS WITH
FLOW VELOCITY GREATER THAN
10 FEET (3M) PER SECOND.
INSTALLATION –
STEP 1 - Determine the Location of the Flow Switch
• The flow switch should be located in a horizontal
section of pipe where there is a straight horizontal
run of at least 5 pipe diameters on each side of the
flow switch.
• The flow switch must be installed in the upright
position as shown with arrow mark on side of casting
in the same direction as fluid will flow.
• Some system conditions that require more than 5
pipe diameters are high viscosity fluid and high fluid
velocity.
10 20
30 40 50 60 70
GPM CAPA
CITY
3/4" or 1" PIPE
5 x D
MINIMUM
D
5 x D
MINIMUM
D= PIPE DIAMETER
3
Loading...