
11451 Belcher Road South, Largo FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
F-1500 Turbine Flow Meter Manual 02/18 - 1018-6 / 35726
Page 18
1. Calculate the required sensor probe insertion length. Measure from the depth marker
arrow down the stanchion and scribe a mark at the calculated insertion depth.
2. Fully retract the flow meter until the sensor head is touching the bottom of the stem
housing. Attach the meter assembly to the full-port isolation valve. Use Teflon tape or
pipe sealant to improve seal and prevent seizing on NPT style.
3. Remove the two top stem clamp nuts and loosen two stem clamp bolts. Slide the stem
clamp away to expose the packing gland nuts.
4. Loosen the two packing gland nuts. Loosen the stem lock bolt adjacent to the sensor
alignment pointer. Align the sensor head using the sensor alignment pointer. Adjust the
alignment pointer parallel to the pipe and pointing downstream. Tighten the stem lock
bolt to secure the sensor position.
5. Slowly open the isolation valve to the full open position. If necessary, slightly tighten
the two packing gland nuts to reduce the leakage around the stem.
6. Turn the insertion tool handle clockwise to insert the stem into the pipe. Continue until
the top of the upper retractor bracket lines up with the insertion length mark scribed on
the stanchion. Do not force the stem into the pipe.
CAUTION
The sensor alignment pointer must point downstream, in the direction of flow.
!
IMPORTANT NOTE
If line pressure is above 500 psig, it could require up to 25 ft lb of torque to insert the
flow meter. Do not confuse this with possible interference in the pipe.
i
7. Tighten the packing gland nuts to stop leakage around the stem. Do not torque over 20 ft-lbs.
8. Slide the stem clamp back into position. Torque stem clamp bolts to 15 ft-lbs. Replace the
stem clamp nuts and torque to 10-15 ft-lbs.
9. To separate the insertion tool from the flow meter, remove four socket head cap bolts
securing the upper and lower retractor brackets. Remove the insertion tool.