CHERNE Test-Ball - Page 30

30
PLACEMENT OF PLUGS UNDER WATER. When installation requires a
plug to be submerged, remove the ination tting and partially ll the plug
with water to create neutral buoyancy. Properly replace the ination tting
(using pipe sealant or teon tape), correctly position the plug in the pipe
and then inate the plug normally with air through an ination extension
hose.
NEVER inate a pneumatic plug over or near a sharp object or obstruction.
Puncture of the plug body and failure may result upon plug ination and
use.
NEVER inate a pneumatic plug over lateral openings. The plug may
rupture upon ination in the non-supported body area. Note: Cherne
Long Test-Balls® and MS2® Long Test-Balls® are designed for use in
wye pipeline sections where the plug body is not completely supported.
Clean-Seal® plugs are designed for use in blocking test tees that have an
unsupported area on each branch of the tee.
NEVER allow a pneumatic plug to protrude from the end of a pipeline
during ination or use. The plug may rupture upon ination or dislodge
when back pressure is applied.
NEVER inate a pneumatic plug outside of a pipeline in excess of one (1)
PSIG. The plug may rupture catastrophically.
THE INFLATOR
CAN BE REMOVED
TEMPORARILY TO
FILL PLUG WITH
WATER TO PROVIDE
NEUTRAL BUOYANCY.
USE PIPE SEALANT
OR TEFLON TAPE
WHEN REPLACING
INFLATOR FITTING.
PLACEMENT OF PLUGS UNDER WATER