LT-14494 r2.5 20200130
1/30/2020
Seametrics • 19026 72nd Avenue South • Kent, Washington 98032 • USA
(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • seametrics.com
AG90 Propeller Replacement
Quick Start Guide
Choose a position that will minimize flow distortion.
Positioning
Positioning
1. Clean the mounting surface, removing
1. Clean the mounting surface, removing
any roughness which would prevent
any roughness which would prevent
the gasket from sealing. Place gasket
the gasket from sealing. Place gasket
centered over pipe opening.
centered over pipe opening.
2. Place saddle top over gasket.
2. Place saddle top over gasket.
3.
3. Make sure saddle top covers entire
Make sure saddle top covers entire
gasket.
gasket.
1
st
4
th
3
rd
2
nd
4. Place the saddle clamps under
4. Place the saddle clamps under
the pipe and align with the clamp
the pipe and align with the clamp
guides on the saddle top.
guides on the saddle top.
6. Insert the AG90 sensor into the saddle
6. Insert the AG90 sensor into the saddle
fitting and secure with mounting clip or
fitting and secure with mounting clip or
attach security clip and seals if required.
attach security clip and seals if required.
5. Place saddle plates over saddle
clamp threads. Attach nuts and
tighten as shown below. Torque to 75
ft-lb in cross pattern.
BEFORE INSTALLING
measure & record inside diameter (ID) of pipe.
*10X/5X
2X
Flow
Flow
Flow
Flow
Flow
Flow
Upstream straight pipe is selected during initial setup. Upstream
options are 5X or 10X the diameter and are based on the
amount of straight pipe available in either new or propeller meter
replacement installation. Downstream straight pipe requirement
is 2X the diameter. See programming setup for details.
Choose a position that will ensure a full pipe.
Side (3 o’clock) and top
(12 o’clock) installations
are acceptable.
1. If you have the bolt-in, 3-vane style they may be removed or left in place. They do not affect performance.
2. If you have the 6-vane, bolt-in style with a cone, it should be removed.
3. For 6-vane, weld-in style installed in a spool, turn the spool 180° and reinstall with the vanes behind the meter.
4. Orifice, tube or Vortab style conditioners will not affect performance.
Flow Straightening Vanes/Conditioners
NOTE: Gasket will extend
NOTE: Gasket will extend
outside of a 4” pipe
outside of a 4” pipe
saddle’s sides.
saddle’s sides.
