 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
FLANGE ISOLATION KITS
Insulating sleeves electrically separate the bolts and the insulating washers to provide electrical insulation for each bolt and nut.
PSI Flange Insulation, Gaskets, Sleeves, Washers, Materials, Kits
Pipe Joint Monolithic Isolation
Monolithic Isolating Joints do not require maintenance. They provide cathodic protection for gas, water, process and petroleum pipelines as well as contribute additional operation and maintenance cost savings. PSI offers the best solutions to preventing corrosion for all industry users including: onshore and offshore mains, petroleum refinery complex, process, chemical plants, waterworks, gas transmission and gas distribution systems.
Flange Isolation Kits include a complete line of Sealing and Isolating Gaskets and a variety of Isolation Sleeves and Washers. PSI flange isolation Kits are designed to provide the complete electrical insulation of a flange assembly.
PSI flange isolation kits are available for all flange sizes, types, pressures and materials including, Mylar, G-10, Nomex, Phenolic. PSI sealing gaskets are available in plain phenolic, rubber faced phenolic, G-3 high-temp phenolic glass, G-7 silicone glass, G-10 epoxy glass, G-11 epoxy glass, Nitrile, EPDM, teflon, Viton, and Special Nitrile.
PSI flange isolation products are the standard for applications subject to the most severe conditions (both internal and environmental), for specialized or exotic fluids, for applications subject to extreme temperature and pressure fluctuations.
LineBacker ZeroTM sealing gasket, LineBacker 250TM sealing gasket and LineBacker 251TM sealing gasket, are all designed to address problems associated with asbestos substitutes and fugitive emissions.
LineBacker® sealing gaskets are self energizing with theoretical near zero “m” and “y” factors resulting in effecting a positive seal without excessive bolt loads required with flat gaskets.
Flange Isolation Kit withType "E" Gaskets have the same outside diameter as the flanges
Type E Gaskets made with precision-located bolt holes. They are easy to center and will prevent foreign material from becoming lodged between the flange faces and "shorting out" the flange insulation. Type "E" gaskets are available in a wide variety of materials; G-10 epoxy glass, G-11 epoxy glass, Nitrile, EPDM, teflon, Viton, and Special Nitrile.
Flange Isolation Kits with Type "F" Gaskets are made to fit within the bolt hole circle.
The outside diameter of the gasket is slightly larger than the inside diameter of the bolt hole circle. They are available in a wide variety of materials; G-10 epoxy glass, G-11 epoxy glass, Nitrile, EPDM, teflon, Viton, and Special Nitrile.
Type "D" Gaskets are made specifically to fit into the ring groove of RTJ flanges. They are available in reinforced phenolic and other materials.
Download a complete PSI Flange Isolation Kit Manual click thr logo f
PSI sealing gaskets far exceed the sealing capabilities of flat gaskets. PSI sealing gaskets consist of a sealing element positioned within a groove on opposite sides of a retainer. Elastic memory characteristics of the confined sealing elements result in near zero m and y factors making it possible to effect a positive seal without the tremendous bolt loads that are required to crush flat gaskets into a configuration capable of producing a marginal seal, at best.
Y = Compressive load necessary to effect a seal.
M = Extra load (above Y factor) necessary to hold fluid pressure over the operational pressure range of the system.
Near zero m and y factor sealing gaskets can be used to effectively seal mating surfaces made from glass, plastics, ceramics and other materials that would tend to shatter when over compressed. When used with flanged piping systems, lower bolt torques and lighter weight, lower pressure rated flanges may be used, resulting in additional material and installation savings.
- Lower bolt torques required to effect a seal
- Reduction in installation time and the need for impact wrenches or cheater bars
- Eliminates the need for retightening due to flat gasket cold flow
- Reduces the need for high tensile strength bolts or studs
- Permits the use of lighter weight or lower ANSI rated flanges
- Assures a positive seal first time, every time while eliminating costly delays to tighten leaking flanges during initial pressurization
- Pressure energized, controlled confinement of PSI sealing elements
- Sealing elements maintain contact with mating surfaces even though the surfaces may tend to warp or separate due to thermal shock, pressure fluctuations or other external forces
- Internal fluid pressure forces the seal elements against the mating surfaces increasing the effectiveness of the seals.