Replacement Parts List

53
Series FS4-3
General Purpose Liquid Flow Switches
Flow Switches – Liquid
Components
For Item Part Model Weight
Model Number Number Number Description lbs. (kg)
All models
1 310451 FS4-15SS Stainless steel paddle kit 0.1 (.05)
2 305200 FS4-33 SPDT switch 0.3 (.14)
FS4-3RP 3 336101 FS4-15RP Stainless steel paddle kit 0.8 (.36)
FS4-3D
5 305512 FS4-3D-17 SPDT switch 0.3 (.14)
6 304300 FS1-17 SPDT switch (next to 0.3 (.14)
adjustment screw)
Series FS4-3
2
FL
O
W
C
O
M
MO
N
N
OR
M
OPE
N
N
O
R
M
C
L
O
S
E
D
C
O
MMO
N
NORM
NO
RM
O
P
E
N
C
L
O
S
E
D
6
5
1"
(25mm)
(25mm)
(51mm)
(76mm)
(152mm)
(152mm)
1" 6"
2" 3" 6"
1
3
Note: Paddle kits include screws and washers.
(except those below)
Series FS4-3
Series FS4-3D Paddle Kits
LOW WITCHES
Flow Switch Replacement Parts
McDonnell & Miller
SF