Dynasonics 701_771C Series Insertion Ultrasonic Flow Meter - Manual (Page 14)

Rev. 12/97 -13- D77X
PART 2 - TRANSDUCER INSTALLATION
The installation instructions cover Hot-Tapped
installations (installations where it is required to install or
remove the transducer probe without shutting down the
process pressure). If the product is being installed
without an isolation valve, ignore the steps that pertain to
its installation. Figure 3 illustrates an exploded view of
an isolation valve assembly and names the various
components.
If the DBV or DSSV accessory kits were ordered with the
DT7 probe, a Hot-tapped installation can be conducted.
The kits include an isolation valve assembly and is
designed for installation in pipes under pressure, up to
700 psi at 70
?
F.
All items required for installation are provided with the kit,
except for the 1.5" NPT weld coupling or service saddle
and the drilling and welding equipment. These
instructions call for the use of a drilling machine
designed for operations under pressure (for example,
Muller Co., Decatur, Illinois).
Step B - Hot Tapped
Installation