Brooks MT3809G - Meter Float Cleaning (MT3809 & MT3810)

Installation and Operation Manual
X-VA-MT3809G-MT3810G-eng
Part Number: 541B182AAG
July, 2018
Models MT3809G & MT3810G
4-2 Meter Float Cleaning (MT3809 & MT3810)
Float replacement procedures are dependent on the meter size,
connection type and uid (gas vs. liquid) application. Please refer to the
appropriate section below for instructions along with Figures 4-1 thru 4-4.
1. FLANGED CONNECTION
a. Size 0 to 5 (½") anged, liquid or gas service
1. It is NOT recommended to disassemble these meters. Contact Service
for repair.
b. Size 7 (½") anged, liquid or gas service
1. Remove the meter from the process line and lay the meter horizontal on
a table.
2. Remove the gasket support ring. A bearing puller of the correct size is
recommended to remove the gasket support ring.
3. Push the entire oat assembly slowly downward and out of the meter
inlet by pushing from the top with a round bar stock (3/4" or 19 mm
diameter).
4. Remove the oat snap-ring to clean individual oat assembly parts.
5. Reassemble the meter by reassembling the oat assembly and
inserting it into the bottom of the meter. Replace the spiral retaining
ring in the meter inlet.
c. Size 8 (½") anged, liquid service
1. Remove the meter from the process line and lay the meter horizontal on
a table.
2. Remove the gasket support ring. A bearing puller of the correct size is
recommended to remove the gasket support ring
3. Loosen the oat assembly with two screwdrivers one on each end of the
meter and turn to loosen the inlet and outlet screws. Remove inlet screw
at the bottom of the meter.
4. Remove the guide vane at the bottom of the meter and gently push the
oat assembly up and out the top/outlet side.
5. Reassemble by inserting the oat assembly into the top of the meter.
Replace the guide vane and secure the oat assembly by tightening the
inlet and outlet screws. Replace the spiral retaining ring in the meter inlet.
d. Size 8 (½") anged, gas service
1. Remove the meter from the process line and lay the meter horizontal on
a table.
2. Remove the gasket support ring. A bearing puller of the correct size is
recommended to remove the gasket support ring.
3. Secure the damper from turning by inserting a 1/8” pin through the top
guide cartridge. While holding the damper in place, remove the top/outlet
screw.
4. Push the oat assembly out through the inlet/bottom.