Exchange the measuring insert
1.
Before the installation of a replacement measuring insert, the inside surface of the
body, especially the seating areas of the O-ring, must be checked for damage. If
damaged, a new O-ring must be used.
2.
The O-ring and the lip seal must be lubricated with grease approved for use with
potable water before installation in to the meter body.
3.
To avoid damaging the O-ring when installing a meter insert, the O-ring must first
be fitted onto the cover flange and then pushed into the meter body. If the O-ring is
fitted into the body first, it can be pinched when fitting the meter inset and cause
leaks.
4.
When installing the measuring insert into the meter body, make sure that the
direction of the arrow on the head flange aligns with the arrow on the meter body.
5.
The screws fixing the measuring insert in the body shall be screwed hand tight and
then tightened crosswise to the torque specification in the following table with the
correct-sized tool.
Torque Specifications
OMNI Meter Type
& Size
Chamber Cover
Bolts (ft-lbs)
Strainer Cover
Bolts (ft-lbs)
Test Port Plug (ft-
lbs)
Test Port Cover
Bolts - R2 only (ft-
lbs)
1.5"-2" C2, T2, R2 30-35
25-40
15-20
12-15
3" C2, T2
30-35
25-40
15-20
N/A
3" H2, V2
25-30
20-35
N/A
N/A
4" C2, T2
30-35
30-45
15-20
N/A
4" F2
30-35
180-200
15-20
N/A
6" C2, T2
35-45
30-45
15-20
N/A
6" F2
35-45
180-200
15-20
N/A
8" C2, T2
35-45
30-45
15-20
N/A
8" F2
35-45
180-200
15-20
N/A
10" C2, T2
35-45
90-100
15-20
N/A
10" F2
35-45
180-200
15-20
N/A
5 Measuring chamber | 23
