Relay Switch:
SPDT 15A @ 125 or 250 Vac, 10,000,000
operations median
Nominal Sensitivity
(% Flow Change to
Activate Switch):
Approximately 10% @ upper end of
range; approximately 30% @ lower end of
range
Differential Pressure
Drop Across Unit:
(Under normal operating conditions)
1"-3" pipe, less than 0.5 PSI; 4"-10" pipe,
negligible
Working Line Pressure:
For standard construction model: 100
PSIG at 150˚F; for special PPS*, Hastelloy
C and Viton construction model: 100
PSIG at 200˚F
Maximum Continuous
Temperature:
Standard construction: 150˚F; special
construction: 200˚F
Wetted Parts:
Standard construction PPS*, 316 SS, Viton
PVC; Special construction: PPS*,
Hastelloy C and Viton
Electrical Cable Fitting:
Water resistant for cable diameters .250"
±0.25"
Weight:
0.25 lb.
PPS* = polyphenylene sulfide plastic
Installation Dimensions
3
INSTALLATION WARNING
THE 1
1
/
2
" X 1
1
/
4
" PVC BUSHING (WHITE OR GRAY) SUPPLIED WITH THE FSW-50 SERIES CAN BE
CRACKED IF THE CENTER BODY IS FIRST TIGHTENED INTO THE BUSHING. CRACKING PROBABILITY
IS REDUCED IF THE BUSHING IS FIRST TIGHTENED INTO THE PIPE OR TANK FITTING AND THEN THE
CENTER BODY TIGHTENED INTO THE BUSHING. THUS:
STEP 1: THREAD AND TIGHTEN THE PVC BUSHING INTO THE PIPE OR TANK FITTING.
STEP 2: THREAD AND TIGHTEN THE CENTER BODY INTO THE PVC BUSHING.
10
Notes
