APS
Isolation Gasket Kits
QUESTGUARD® flange isolation (insulation) products are constructed of premium engineering materials. The isolation products include a wide selection of isolating/sealing gaskets along with a variety of sleeves and washers. For maximum flexibility, components may be ordered separately or as part of complete flange isolation kits.
Flange Isolation Kits are designed to work in conjunction with our isolating gaskets to affect the complete electrical isolation of a flanged assembly. The Isolation Kits consist of one full-length isolating sleeve, two isolating washers and two steel washers for each of the bolts in the flange assembly. The purpose of the isolating sleeves is to electrically separate the bolts from each side of the flange, while the isolating washers provide electrical isolation for each of the nuts attached to the bolts. This method of isolation provides the user with a high-reliability solution to complete the electrical isolation of a flanged joint.
Type D
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
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. Standard thickness of 1/8".
Type F
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. Standard thickness of 1/8".
Gasket Retainer Specifications
| Name Grade | Water Absorption % | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tensile Strength PSI | Compression Strength PSI | Dielectric Values VPM | Max. Operating Continous | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| CE | 3.5 | 12,000 | 34,000 | 400 | 257°F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| G7 | .09 | 22,000 | 40,000 | 400 | 400°F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| G10 | .01 | 40,000 | 66,000 | 800 | 248°F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| G11 | .20 | 43,000 | 63,000 | 900 | 347°F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| XPN | 1.5 | 18,000 | 45,000 | 600 | 266°F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| XP | 1.5 | 18,000 | 45,000 | 600 | 266°F |
INSULATING 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 SEALING GASKETS
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 circles.
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 ensures 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.
ADVANTAGES OF THE TROJAN
HIGH TEMPERATURE PRODUCTS
Other temperature materials are available upon request. It is recommended that the factory be contacted to discuss technical data on the above referenced products.
SPECIAL APPLICATION
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.
PACKAGING
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.