Series | Chapter 2 Installation |
Insertion Procedure for Meters with a Compression Connection
Caution!
The sensor alignment pointer must point downstream, in the direction of flow.
Figure 2-7. Flow Meter with Compression Type Fitting
1.Calculate the required sensor probe insertion length.
2.Fully retract the stem until the sensor head is touching the bottom of the stem housing. Slightly tighten the compression nut to prevent slippage.
3.Bolt or screw the flow meter assembly into the process connection. Use Teflon tape or pipe sealant to improve the seal and prevent seiz- ing on NPT styles.
Warning!
To avoid serious injury, DO NOT loosen the compression fitting under pressure.
4.Hold the meter securely while loosening the compression fitting. Insert the sensor into the pipe until the calculated insertion length, I, is measured between the base of the enclosure adapter and the top of the stem housing, or to the raised face of the flanged version. Do not force the stem into the pipe.
5.Align the sensor head using the sensor alignment pointer. Adjust the alignment pointer parallel to the pipe and pointing downstream.
6.Tighten the compression fitting to lock the stem in position. When the compression fitting is tightened, the position is permanent.
