Badger Meter 3-A Sanitary - Manual (Page 7)

INSTALLATION
THE METER SHOULD NOT BE SUBJECTED TO TEMPERATURES ABOVE 300° F (149° C), OR BELOW –150° F (–101° C) OR
THE FREEZING POINT OF THE METERED LIQUID. HIGH TEMPERATURES WILL DAMAGE THE MAGNETIC PICKUP, WHILE
LOWER TEMPERATURES WILL LIMIT THE ROTATION OF THE ROTOR.
INCOMPATIBLE FLUIDS COULD DETERIORATE INTERNAL PARTS AND CAUSE THE METER TO READ INACCURATELY.
Plumbing
The flow meter must be installed with the flow arrow, etched on the exterior of the meter body, pointing in the direction of
fluid flow Though the meter is designed to function in any position, it is recommended, where possible, to install horizontally
with the magnetic pickup facing upward
The liquid being measured must be free of any large particles that may obstruct spinning of the rotor If particles are present,
a mesh strainer should be installed
If small particles are present in the fluid, Blancett recommends that a strainer be installed upstream of the meter See
Table 2
for filtration recommendations
Bore Size Ferrule Size Strainer Size Clearance
3/8 in 0 984 in 60 × 60 0 0092 in
1/2 in 0 984 in 60 × 60 0 0092 in
3/4 in 0 984 in 60 × 60 0 0092 in
1/2 in 1 984 in 60 × 60 0 0090 in
3/4 in 1 984 in 60 × 60 0 0092 in
7/8 in 1 984 in 60 × 60 0 0092 in
1 in 1 984 in 60 × 60 0 0092 in
1-1/2 in 1 984 in 20 × 20 0 0340 in
2 in 3 047 in 10 × 10 0 0650 in
Table 2: Filtration recommendations
Severe pulsation and mechanical vibration will affect accuracy and shorten the life of the meter
The preferred plumbing setup is one containing a bypass line that allows meter inspection and repair without interrupting
flow See Figure 3 If a bypass line is not utilized, it is important that all control valves be located downstream of the flow meter
See Figure 4
User Manual
Page 7 November 2013