Panametrics C-RL, Instruction Manual

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2 Model C-RL Installation Guide
3 Dampening Material
Panametrics Measurement & Control strongly recommends applying DMP dampening material in all permanent
clamp-on applications to help eliminate noise. The following dampening materials are available:
• DMP-1 is a self-adhesive sheet for applications up to 200°F (93°C): The material comes as two 9.5-in. (24 cm)
wide sheets cut in sufficient length for your application. (Length


twice the circumference of the pipe at the
installation site.)
• DMP-3 is a compound for applications over 150°F (65
o
C). The compound is applied to the pipe with a putty
knife.
• The
Pipe Dampening Jacket (
PDJ ) is a sheath/jacket with DMP-3 pre-applied to the inside and is also used for
applications over 150
o
F (65
o
C). The PDJ is available for pipes 4”, 6”, 8”, 10” and 12” (100, 150, 200, 250 and 300
mm) in diameter.
At a minimum, you should consider applying dampening material if you have any of the following conditions:
• The distance from the nearest butt weld or pipe flange is less than 10 ft (3 m).
• The pipe size is under 16 in. (400 mm) diameter and the gas pressure is 200 psig (1378 kPa) or lower.
• The pipe is deformed (non-circular).
• The pipe is old, with a history of scaling or rust.
• The pipe experiences constant condensation on the outside.
Note:
Consult a Panametrics flowmeter applications engineer or sales engineer if you have any questions
regarding dampening material.
Details for properly installing the dampening material are discussed later in this manual.