Owner's manual

3Signet 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  ow is not recommended.
Upward  ow is preferred to ensure full pipe.
+45°
-45°
0°
Process
Pipe
Reducer
15 x I.D. 5 x I.D.
20 x I.D. 5 x I.D.
90° Elbow
40 x I.D. 5 x I.D.
2 x 90° Elbow
3 dimensions
25 x I.D. 5 x I.D.
2 x 90° Elbow
50 x I.D. 5 x I.D.
Pump/Valve
+
GF
+
+
GF
+
+
GF
+
+
GF
+
+
GF
+
OKOK OK
Vertical flow is OK if the pipe remains full at all times.
Select a location with suf cient length of straight pipe
immediately upstream of the sensor.
Locating the sensor in a trap or where the  ow is upward
helps to protect the sensor from exposure to air bubbles
when the system is in operation.
These con gurations are not recommended because it is
dif cult to keep the pipe full.
Installation: Pipe fi ttings
Georg Fischer Signet offers a wide selection of installation  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
Special order 14 in. to 36 in.
0.5 to 2 inch versions (MPVC or CPVC)
2.5 to 4 inch versions (PVC)
2 to 4 inch, cut 1-7/16 inch hole in pipe
6 to 8 inch, cut 2-1/8 inch hole in pipe
Available in 10 and 12 inch sizes only
Cut 2-1/2 inch hole in pipe
Weld in place using solvent cement
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 from DN 15 to 50 mm
PP or PVDF
Type Description
Plastic
tees
Metric
Union
Fitting
PVC
Saddles
Iron
Strap-on
saddles
PVC
Glue-on
Saddles
1.5 in. to 2 in. PVDF insert
Fiberglass
tees
FPT
0.5 to 2 in. versions
Mounts on threaded pipe ends
Metric
Wafer Fitting
For pipes DN65 to 200 mm
PP or PVDF
d