2
Signet 2537 Flowmeter
Location of Fitting
Recommended sensor upstream/downstream mounting
requirements
Sensor Mounting Position
•
Horizontal pipe runs: Mount sensor in the upright (0°) position for best performance. Mount at a
maximum of 45° when air bubbles are present (pipe must be full). Do not mount on the bottom of
the pipe when sediments are present.
•
Vertical pipe runs: Mount sensor in any orientation, however, downward
fl
ow is not recomended.
Upward
fl
ow is preferred to ensure full pipe.
+45°
-45°
0°
Process
Pipe
15 x I.D.
5 x I.D.
Reducer
+GF+
10 x I.D.
5 x I.D.
Inlet
Outlet
Flange
+GF+
50 x I.D.
5 x I.D.
Valve/Pump
+GF+
40 x I.D.
5 x I.D.
2 x 90° Elbow
3 dimensions
+GF+
25 x I.D.
5 x I.D.
2 x 90° Elbow
+GF+
20 x I.D.
5 x I.D.
90° Elbow
+GF+
+GF
+
+
GF
+
+GF+
+
GF
+
+G
F+
+GF+
O.K.
O.K.
O.K.
Vertical flow is OK IF the pipe remains full at all times.
Select a location with suf
fi
cient length of straight
pipe immediately upstream of the sensor.
Locating the sensor in a trap or where the
fl
ow is
upward helps to protect the sensor from exposure
to air bubbles when the system is in operation.
These con
fi
gurations are not recommended because
it is dif
fi
cult to keep the pipe full.
Installation: Pipe fi ttings
George Fischer Signet offers a wide selection of installation
fi
ttings that control the position of the paddlewheel in relation to the
dimensions of the pipe.
Type
Description
2 to 4 inch, cut 1-7/16 inch hole in pipe
Over 4 inch, cut 2-1/8 inch hole in pipe
0.5 to 4 inch versions
PVC or CPVC
2 to 4 inch, cut 1-7/16 inch hole in pipe
6 to 8 inch, cut 2-1/8 inch hole in pipe
Iron, Carbon Steel,
316 SS Threaded
tees
Carbon steel &
stainless steel
Weld-on
Weldolets
2 to 4 inch, cut 1-7/16 inch hole in pipe
Over 4 inch, cut 2-1/8 inch hole in pipe
For pipes DN 65 to 200 mm
PP or PVDF
For pipes from DN 15 to 50 mm
PP or PVDF
Type
Description
Plastic tees
Metric
Wafer Fitting
Metric
Union
Fitting
PVC
Saddles
Iron
Strap-on
saddles
1.5 inch to 8 in. PVDF insert
> 8 inch PVC insert
Fiberglass
tees &
saddles:
FPT
FPS
0.5 to 2 inch versions
Mounts on threaded pipe ends
40
80
120
160
200
3
6
8
11
14
0
40
80
120
160
200
-18
4
27
49
71
93
°F
°C
psi
bar
240
115
PVDF
Polypropylene
Fluid Conditions
Pressure/Temperature Ratings:
Polypropylene Body:
•
12.5 bar (180 psi) max. @ 20 °C (68 °F)
• 1.7 bar (25 psi) max. @ 85 °C (185 °F)
PVDF Body:
• 14 bar (200 psi) max @ 20 °C (68 °F)
• 1.7 bar (25 psi) max @ 85 °C (185 °F)
Intended Use:
This product is intended for use in industrial water treatment
and waste water treatment applications where the chemical content and the
fl
uid
temperatures are consistent with the speci
fi
cations listed herein.
This device is not approved for use or installation in fl ammable liquids.
