|
ISOJOINT
IsoJoint is a
true monolithic isolating joint. The most up-to-date, patented joint on
the market, IsoJoint
does not depend on the use of insulating sleeves and washers for bolts
nor insulating gaskets or O-rings between flanges. Why? These insulating
gasket kits require a critical, even surface to provide regular and
variable crushing and must be maintained over the life of the insulator.
External pressure, causing an uneven load on the flange area, can result
in loss of insulating properties as well as the transported fluid.
IsoJoint
employs one or more, preassembled pressure seals and the insulating
rings. Unlike insulating gasket kits, IsoJoint
does not depend on installer's actual fitting of the joint's insulating
gasket, sleeves and washers and the possible loss or damage to any one
of the number of these materials which would result in complete
breakdown of the insulated flange. One lost or damaged part will render
these flanges useless. The monobloc design of the IsoJoint
allows the joint to be welded into place as one piece, virtually
eliminating any field problems. Unless a meticulous on-site assembly and
over-wrapping is undertaken in the installation of the insulating gasket
kits, gradual penetration of moisture will erode the electrical
resistance. This problem, along with the others listed above, make
inspection and maintenance necessary. Contrary to this inconvenience,
IsoJoint's
technique and design of the pressure seals, coupled with the closure
weld, guarantees that the specified mechanical and electrical properties
will always be maintained allowing for direct burial and requiring no
maintenance.
At first
glance, flange gasket kits seem to be the economical route to take to
the insulating problem, but when coupled with the expense of components,
labor and maintenance, IsoJoint
has proven itself to be the productive solution. The IsoJoint
provides for current control by separating pipework into distinct zones
as part of a cathodic protection system and effectively eliminating
long-line currents. This assures increased plant and equipment life by
reducing or eliminating corrosion damage. Effective control can be
realized by placing IsoJoints
at pipeline entry points to processing plants or gas compressor
stations, where a branch is connected to the mainline, where two
pipelines of different material connect to where well coated pipe meets
a poorly coated system. Optimum cathodic protection can be achieved for
each section of pipeline—maximizing savings and minimizing costs.
|
Iso-Joints
