INSULATING GASKET KITS
Flanges, the most
common trouble area, need to be sealed properly to prevent leakage and must also
be cathodically insulated to prevent stray currents which cause undo corrosion
and eventual breakdown of the metal. Advance Products & Systems manufactures and
maintains a supply of quality products and materials which help solve most
flange sealing problems, therefore preventing subsequent corrosion and saving
the integrity of the pipeline.
Type D gaskets are specifically designed to fit into the ring groove of
ring-type-joint flanges. They are manufactured of a medium weave,
fabric-reinforced phenolic material and are sized to ANSI specifications
available in basic oval as well as octagonal shape. Also available are BX
gaskets with pressure ratings to 15,000 PSI.
Type E is a full-faced gasket with the same outside diameter as the flange
and precision cut bolt holes. This design facilitates proper alignment of the
gasket during installation and foreign material prevented from shorting the
flange insulation. Type E gaskets are available in plain face or Neoprene face
phenolic, as well as a variety of high temperature materials.
Type F gaskets are made to fit the raised face portion of the flange only.
As there are no bolts holes in the F gasket, the inside diameter of the bolt
hole circle is slightly smaller than the outside diameter of the gasket,
assuring an exact, automatic positioning of the gasket. Available in the same
materials as the type E gasket.
SLEEVES AND WASHERS
Insulating sleeves manufactured of high density polyethylene, NEMA grade LE
phenolic, and Mylar are available in a full range of sizes. Also available are
one-piece integral sleeves and washers which are made of Minton, providing
superior compression strength. Integral sleeves are available in sizes through
1-1/2". A variety of high temperature sleeves are also stock items. With each
insulating washer, a 1/8" thick S.A.E. electro-plated steel washer is provided
to protect the insulating washer from damage by the nut. Advance flange
insulation sets are available in single washer or double washer kits.
Trojan gaskets are state-of-the-art in near zero leakage static sealing. The
elastomer sealing element is encapsulated in the electrically insulated
retainer. The encapsulation of the sealing element permits only micro-exposure
of the seal to hostile environs of fire, chemicals and corrosive fluids.
Because of the
controlled confinement of the elastomer sealing ring within the available volume
of the groove in the retainer, 92% to 94% filled volume, a consistent
controlled-pressure seal can always be obtained without tremendous bolt loads.
Reduced loads allow for reduced flange thickness, smaller bolts and smaller
The cross section
of APS’s Trojan Sealing Gasket (A) shows the elastomer sealing element as it
appears before compression between flanges. This compression causes the seal to
effectively fill the void of the groove and encapsulate, permitting only micro
exposure of the actual seal to hostile elements either from within or without.
QUAD SEAL TROJAN
Four seals on the new Quad-Seal Trojan further insures the integrity of the
sealing capability of an already-proven reliable gasket. For areas where
absolute zero leakage is a must, the Quad-Seal Trojan works twice as hard.
utilized with mismatched flanges |
utilized with misaligned flanges |
|Can be used in
place of RTJ or BX rings |
torque required |
cannot be left out |
tested from 0 - 100,000 psi |
of seal exposed (long fire life) |
pressure, compression, vibrations, temperature, variations, etc. |
reduces human error during installation |
selection of materials available |
|Three to four
times the dielectric strength necessary |
installation and maintenance costs |
through 144" |
HIGH TEMPERATURE PRODUCTS
grade G7 and G10, Durabla, Durlon, Lydall, JMRD81 |
NEMA grade G7, G10, Durabla, Durlon |
grade G3, G7, G10, Durabla, Durlon |
materials are available upon request. It is recommended that the factory be
contacted to discuss technical data on the above referenced products.
Advance Products and Systems, Inc. is well equipped to make those special
insulation pads and gaskets sometimes required for odd shaped connections. We
can manufacture any configuration or design needed. These applications include
special closures, vaults, steel boxes, special connectors, utility and light
poles. If it needs to be sealed…we can be of service.
Each Advance flange insulation gasket kit is packaged individually in
durable corrugated boxes. Insulating sleeves and washers are packaged separately
and are cushioned within the box to protect them from damage during shipment.
Each set is clearly tagged with flange size, pressure rating, type of insulating
sleeve and whether it is a single washer or double washer set. A recommended
bolt tightening sequence sheet is provided with each kit.