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ADFM Hot Tap Insertion
D-1
Introduction
The ADFM Hot Tap Insertion (HTI) flow meter is a variant of the standard,
open channel ADFM flow monitoring system. The HTI transducer is a
miniaturized version of the standard ADFM transducer. Designed specifi-
cally for use in closed or pressurized pipes, the HTI transducer enables in-
stallation while a pipe is still fully pressurized and in service. Installation
of the HTI transducer is accomplished through an industry standard two-
inch tap through the pipe wall.
The ADFM HTI transducer uses the standard ADFM electronics for data
collection and storage. For the customer already familiar with the standard
ADFM system, any differences between the two systems are transparent.
The ADFM HTI flow monitoring system operates essentially like the stan-
dard ADFM flow monitoring system.
Figure D-1.
ADFM Technical Manual (January 2000)
Size Comparison between a HTI Transducer (Right) and a
Standard ADFM Transducer (Left)
ADFM Hot Tap Insertion
D
Appendix
page D -1
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