The
2001J Mainline Packer
responds to the highest standards for testing & sealing joints
of mainline sewer pipes with chemical grout. A thick
cross-biased reinforced SBR rubber sleeve with soft natural rubber over the
seating portion is bonded to the stainless steel core. The smooth
outer finish reduces the adherence of the grout on the packer.
The 2001 J Mainline Packers come standard with two grout ports and a third
port dedicated for the test medium (air/water).
MAIN FEATURES:
Void
Pressure Monitoring Systems: Two different void pressure
monitoring systems are available to accurately transmit the
test & grouting pressures to a gauge read by the camera or
through a pressure transducer. The conventional localized
sensor is recommended for acrylamide and acrylate grouts. The
in-wall water chamber sensor is recommended for stickier
grouts such as urethanes and polyurethanes. The 2001J Packer
can be ordered with both systems or one of the two as needed
by customer.
Dedicated Test Port:
By using a dedicated hose from the truck to the packer for the
test medium (air/water), tees and check-valves are eliminated
and the mixing ratio of the two part grout is kept constant
(no flushing of the catalyst when testing).
Three-Function Adjustable
Rubber Check-Valve: They are non-dripping when set to open
at a pressure of 20 to 35 P.S.I., prevent backflow and provide
a good mixing of the two part chemicals through the fan like
stream of the opposed & adjacent ports.
The Autotesting Concept:
When inflating the 2001J packers, the ends first sealagainst
the pipe wall, while its central portion progressively expands, trapping air and compressing it into the tiny grout mixing
chamber. The pressure in the chamber is transmitted through
the liquid filled sensor and/or the in-wall water chamber
sensor to a gauge or transducer at the packer. The operator
can tell if a joint is obviously good or not by simply
inflating the packer over it. By avoiding time consuming
conventional tests, productivity could be increased by as much
as 40%.
