Flange and Bolt Insulation

Flange and Bolt Insulation

Industrial Gaskets manufactures and stocks an extensive range Flange and Bolt Insolation products

 

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.

A flange is typically insulated for cathodic protection reasons.  Insulating the flange requires that no metal to metal contact occurs between the two flanges, this includes between the bolts.  Insulating sleeves and washers are used on the bolts that prevents this contact.

Isolating products are used to guarantee the safe flow of fluids passing through pipeline transmission, distribution and process piping systems.

Flange and Bolt Insulation products are the most widely used form of controlling losses due to corrosion.  They can be used to control stray electric currents in piping at oil, gas, water, refinery, and chemical plants, to increase the effectiveness of cathodic protection systems and confine or eliminate electrolytic corrosion.

Industrial Gaskets can supply various sizes and types of insulating gaskets and complete gasket kits to suit any pressure or product requirements They are available in variety of materials. Each kit is supplied either with steel and insulating washers, sleeves and a insulating gasket or TopHat bolt insulators, steel washers and an insulating gasket. 

The most common insulating materials include Minlon©, G11 Glass Epoxy, G10 Glass Epoxy, Mylar, Phenolic,  PTFE (or Teflon©).  At Industrial Gaskets they are available for all flange sizes, types, pressure ratings.

Flange Insulation is designed to combat the effects of  corrosion often found in flanged pipe system.  Galvanic corrosion between dissimilar metal flanges, flange insulation associated with cathodic protection of underground piping are other examples where Flange Insulation can be put to effective use.

Industrial Gaskets manufactures Flange Insulation Kits in Type E, Type F and Type D configuration, TopHat Bolt Insulators, Insulating Washers and Insulating Gaskets.

Industrial Gaskets is the Australian agent for Advance Products & Systems LLC in USA for their severe service flange, bolt isolation and protection products.

Refer individual product for further information below on Flange and Bolt Insulation or contact one of our Sales Representatives

  

 

Showing 15 products

Blue EPDM Rubber Potable Water

Blue EPDM Potable Water Rubber

Blue Potable Water EPDM is a premium EPDM Duro 70 rubber specially formulated for use for Flange Isolation and potable water applications and fully certified to AS/NZS4020.

Industrial Gaskets stocks and manufactures Bue Premium EPDM Potable Water rubber elastomer sheet and gaskets   Blue Potable Water EPDM is a black premium grade Duro 70 EPDM rubber sheet, specially formulated for use where Flange Isolation is required in a potable water application.  Blue Potable Water EPDM is certified to AS/NZS 4020:2005. Blue Potable Water Premium EPDM retains all the other properties of standard Potable Water Premium EPDM rubber sheet and has high temperature resistance and chemical resistance to acids and alkalis.  It has poor resistance to petroleum based fluids. Blue Potable Water EPDM is specifically formulated for use in applications which require contact with Potable Water and also protect flanges from Galvanic Corrosion when Flange Insulation is required for dissimilar metal flanges.   Industrial Gaskets Blue Potable Water EPDM has been independently tested and fully certified to meet the relevant Australian Standards: AS/NZS 4020:2005 TESTING OF PRODUCTS FOR USE IN CONTACT WITH DRINKING WATER   Blue Potable Water Premium EPDM rubber is completely UV stabilised making it highly resistant to ozone effects and extreme weather conditions.   It is suitable for prolonged exposure to drinking water and will not deteriorate when submerged, making it suitable for gasket sealing applications.      SIZES/AVAILABILITY   Blue EPDM Potable Water rubber elastomer is available in the following thicknesses in cut standard and non standard gaskets, rolls, strips, washers or metre lengths.      

Bolt Insulation - Minlon Top Hat

TopHat

Top Hat or Bolt Insulators are a one piece moulded sleeve and washer that are used to electrically isolate bolts from flanges to stop galvanic corrosion. Material is a mineral filled nylon - Minlon

Top Hat Bolt Insulation offers a tough, convenient-to-use, one-piece sleeve and washer option. Industrial Gaskets Top Hats are manufactured from Mineral Reinforced Nylon (commonly known as Minlon®).  Industrial Gaskets Top Hat Bolt Insulators contain a UV resistant stabilizer and have good di-electric strength. Bolt Insulating  "Top Hats" are used to provide electrical isolation between the bolts and flanges on pipelines, or between dissimilar metals. Mineral Reinforced Nylon (commonly known as Minlon®) exhibits good to excellent resistance to most hydrocarbons, ozone, gasoline, ethanol, oil, grease, water etc.  We can manufacture and supply various sizes and types of "Top Hat" bolt insulation.  Sizes stocked include M3 through to M30 in Metric and 1/2" through to 1-3/4" in Imperial.  They can be used for single bolt isolation or combined with a gasket and steel washers to form a flange kit.  

Doniflon 2020

DONIFLON2020

Doniflon 2020 is a biaxially orientated PTFE with silica. Fawn in colour, it has superior chemical resistance especially for concentrated inorganic acids.

Industrial Gaskets is an Authorised distributor of Donit® Doniflon2020.    Donit® Doniflon 2020 is recommended for the pharmaceutical and food industries.  A general purpose grade suitable for use with alkalis, solvents, fuel and steam. It has enhanced creep performance compared to virgin PTFE materials. Doniflon® 2020 is structurally enhanced PTFE gasket sheet filled with silica. It has outstanding chemical resistance to various media, same as Doniflon® 900E; especially recommended for inorganic acids in all concentrations, except hydrofluoric acid. This material has enhanced creep performance compared to plain PTFE material. It is recommended for pharmaceutical and food industries as well as LNG & cryogenic applications. Composition PTFE resin filled with Silica / Colour - Fawn Approvals and Compliances Complies with FDA Regulation 21 CFR 177.1550 and Food Legislation EU Regulation No. 1935/2004 BAM (Oxygen) EN 12308 LNG & Cryogenic applications Applications STEAM SUPPLY COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY GENERAL PURPOSE CHEMICAL INDUSTRY PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY REFRIGERATION AND COOLING PHARMACEUTICAL INDUSTRY VALVES Properties Material for superior sealability, chemical resistance, very good mechanical and thermal resistance. Dimensions of standard sheet Sheet size (mm): 1500 x 1500 Thickness (mm):  1.5 | 2.0 | 3.0Other dimensions and thicknesses are available on request.

Flange Insulation Kit - Type E

Flange Insulation Kit - Type E

Type "E" Insulation Gaskets extend to the outside diameter of the flange.

Industrial Gaskets standard Type E Flange Insulation Kits feature precision located bolt holes, to automatically center the gasket and prevent foreign material from becoming lodged between the flange and "shorting out" the flange. Industrial Gaskets can supply various sizes and types of insulating gaskets, bolt insulation and complete gasket kits to suit any pressure, temperature or operational specifications. Flange Insulation Gaskets are available in Compressed Fibre (Tesnit BA-GL or Tesnit BA-U), G11 Epoxy, Reinforced Phenolic, GPT Linebacker © Fire Safe and other materials.  Each kit is also supplied with washers, sleeves  in a wide variety of materials including Phenolic, Minlon, Mylar G11 Epoxy and Nomex. They are available for all flange sizes, types, pressure ratings and temperature ratings. Industrial Gaskets Flange Insulation products are designed to combat the effects of corrosion often found in flanged pipe systems.  Galvanic corrosion between dissimilar metal flanges, flange insulation associated with cathodic protection of underground piping are other examples where Flange Insulation can be put to effective use.  Industrial Gaskets Flange Insulation Kits -  Designed to minimise electro-chemical erosion Prevent Galvanic Corrossion Used to electrically isolate sections of pipework Comprise of materials with high dielectric strength Flange Insulation kits are available in different Types to suit flange configuration and subsequently the gasket style that is supplied within the kit.  Below is the three main types of Flange Isolation Kits. Flange Kits are also available for Potable Water applications. TYPE D - Consists of an RTJ Phenolic gasket (supplied with supporting bolts insulation materials) TYPE E - Consists of a Full Face gasket (supplied with supporting bolts insulation materials) TYPE F - Consists of a Ring gasket (supplied with supporting bolts insulation materials) The most commonly specified kit style is the Type E unless ring groove flanges are being used in which the Type D must be specified. For further information please contact one of our sales representatives.

Flange Insulation Kits - Type D

Flange Insulation Kits - Type D

Insulating kits are used to provide electrical isolation between flanges on a pipeline. Type "D" Gaskets are specially made for RTJ flanges to be positioned in the ring groove.

Industrial Gaskets Type "D" Flange Insulation Kits are specially made for RTJ flanges to be positioned in the ring groove. Industrial Gaskets can supply various sizes and types of insulating gaskets, bolt insulation and complete gasket kits to suit any pressure, temperature or operational specifications. Flange Insulation Gaskets are available in Compressed Fibre (Tesnit BA-GL or Tesnit BA-U), G11 Epoxy, Reinforced Phenolic, GPT Linebacker© Fire Safe.  Each kit is also supplied with washers, sleeves  in a wide variety of materials including Phenolic, Minlon, Mylar G11 Epoxy and Nomex. They are available for all flange sizes, types, pressure ratings and temperature ratings. Industrial Gaskets Flange Insulation products are designed to combat the effects of corrosion often found in flanged pipe systems.  Galvanic corrosion between dissimilar metal flanges, flange insulation associated with cathodic protection of underground piping are other examples where Flange Insulation can be put to effective use.  Industrial Gaskets Flange Insulation Kits -  Designed to minimise electro-chemical erosion Prevent Galvanic Corrossion Used to electrically isolate sections of pipework Comprise of materials with high dielectric strength Flange Insulation kits are available in different Types to suit flange configuration and subsequently the gasket style that is supplied within the kit.  Below is the three main types of Flange Isolation Kits. TYPE D - Consists of an RTJ Phenolic gasket (supplied with supporting bolts insulation materials) TYPE E - Consists of a Full Face gasket (supplied with supporting bolts insulation materials) TYPE F - Consists of a Ring gasket (supplied with supporting bolts insulation materials) The most commonly specified kit style is the Type E unless ring groove flanges are being used in which the Type D must be specified. For further information please contact one of our sales representatives.

Flange Insulation Kits - Type F

Flange Insulation Kits - Type F

Type F are made to fit within the bolt hole circle of the flange faces. The outside diameter of the gasket is slightly larger than the inside diameter of the bolt hole circle.

Industrial Gaskets Type F Flange Insulation Kits feature a Ring Gasket as the main insulating sealant.  Type F Flange Insulation kits are not commonly used as foreign material can become lodged between the flange and "short out" the flange.  As the flanges are not fully covered by an insulating material there is also a risk to the flanges "communicating" with each other which is why Industrial Gasket recommends the use of a Type E flange insulation kit / gasket Industrial Gaskets can supply various sizes and types of insulating gaskets, bolt insulation and complete gasket kits to suit any pressure, temperature or operational specifications. Flange Insulation Gaskets are available in Compressed Fibre (Tesnit BA-GL or Tesnit BA-U), G11 Epoxy, Reinforced Phenolic.  Each kit is also supplied with washers, sleeves  in a wide variety of materials including GPT Linebacker, Phenolic, Minlon, Mylar G11 Epoxy and Nomex. They are available for all flange sizes, types, pressure ratings and temperature ratings. Industrial Gaskets Flange Insulation products are designed to combat the effects of corrosion often found in flanged pipe systems.  Galvanic corrosion between dissimilar metal flanges, flange insulation associated with cathodic protection of underground piping are other examples where Flange Insulation can be put to effective use.  Industrial Gaskets Flange Insulation Kits -  Designed to minimise electro-chemical erosion Prevent Galvanic Corrossion Used to electrically isolate sections of pipework Comprise of materials with high dielectric strength Flange Insulation kits are available in different Types to suit flange configuration and subsequently the gasket style that is supplied within the kit.  Below is the three main types of Flange Isolation Kits. TYPE D - Consists of an RTJ Phenolic gasket (supplied with supporting bolts insulation materials) TYPE E - Consists of a Full Face gasket (supplied with supporting bolts insulation materials) TYPE F - Consists of a Ring gasket (supplied with supporting bolts insulation materials) The most commonly specified kit style is the Type E unless ring groove flanges are being used in which the Type D must be specified. For further information please contact one of our sales representatives.

G-10 Glass Epoxy Washer

G-10 Glass Epoxy Washer

G-10 Glass Epoxy for isolation from dissimilar metals and subsequent galvanic corrosion. G-10 Epoxy glass has high mechanical strength, good electric strength properties and dielectric loss properties under both dry and humid conditions.

G-10 Glass Epoxy is a continuous woven glass fabric laminated with an epoxy resin.  G-10 Glass Epoxy also has low water absorption rates.  This grade is extremely high in mechanical strength, has low water absorption and dissipation factors and has superior electrical characteristics, which are exhibited over a wide range of temperatures and humidities. Especially suited for static applications in which flange or joints require isolation from dissimilar metals and subsequent galvanic corrosion. Grade G-10 Glass Epoxy is used for terminal boards, washers, sleeves, structural components, and parts where the strength to size ratio is critical. G-10 Glass Epoxy Washers are available in standard bolt sizes or cut to your size.  

G-11 Glass Epoxy Washer

G-11 Glass Epoxy Washer

G-11 Glass Epoxy is used for isolation from dissimilar metals and subsequent galvanic corrosion. G-11 Glass Epoxy has extremely high mechanical strength, good electric strength properties and dielectric loss properties at elevated temperatures.

G-11 Glass Epoxy washers are made from continuous woven glass fabric laminated with an epoxy resin. The G-11 Glass Epoxy grade is extremely high in mechanical strength, has low water absorption and dissipation factors and has superior electrical characteristics, which are exhibited over a wide range of temperatures and humidities. G-11 Glass Epoxy is especially suited for static applications in which flange or joints require isolation from dissimilar metals and subsequent galvanic corrosion. Grade G-11 Glass Epoxy is used for terminal boards, washers, sleeves, structural components, and parts where the strength to size ratio is critical. It has a slightly higher maximum temperature than the G10 Epoxy Glass Washer.  Refer datasheet for further technical information Available in standard metric and imperial washer sizes, special non standard sizes, gaskets and bolt sleeves. If you would like any further information please contact one of our sales representatives.   

Integra II SSA Isolation Gasket

Integra II SSA

Integra II SSA (Severe Service Application) gaskets are exceptionally dependable for isolating and sealing purposes in severe service applications

Industrial Gaskets is the Australian agent for the Integra II SSA (Severe Service Application) gasket, which is an exceptionally dependable gasket used for both insulating and general sealing purposes in Severe Service Applications. This gasket has been developed as an inimitable and effective seal for sealing flanges in which the opportunity for leakage must be held at zero allowance. The Integra II SSA gasket is suitable in all services up to and including ANSI #2500 and API #1500 classes. The Integra II SSA was designed specifically for severe isolation service in harsh environmental applications, especially where hydrocarbons are a factor. The Integra II SSA gasket consists of a PTFE spring-energised face seal, seated in a highly compressed insulating glass laminated affixed to a concentrated stainless steel metal core.  This gasket is engineered to be re-useable with a replaceable sealing element. Applications Eliminate corrosion from forming in the cavities between RTJ flanges where intense modes of hostile chemicals may be present. Protect against corrosion on uncoated or scarred flange faces Mating mismatched dissimilar flanges Isolating between dissimilar metals to prevent galvanic corrosion Flange isolation with true Cathodic protection Wellhead isolation from inter-connected flow lines Eliminate turbulence and flow-induced erosion between ring joint (RTJ) flanges To seal between flanges subjected to vibrations/cavitations Zero-free leaks for high Sulfur Content crude oil or H2S Gas fugitive emissions, proven through multiple applications. Refer attached datasheet or contact us for further information or technical support.

Integra II SSAFS Flange Isolation Kit

Integra II SSAFS

Integra II SSAFS (Severe Service Application- Fire Safe) gaskets are exceptional for isolating in severe service applications where API 6FB Fire Safe approval is critical.

Integra II SSAFS (Severe Service Application - Fire Safe) gaskets and isolation kits are exceptionally dependable for isolating and sealing purposes in severe service applications where API 6FB certification is critical. When is an Integra II SSAFS (Severe Service Application - Fire Safe) gasket used ? It is for industry where a non-metallic isolating gasket that could also withstand the damaging effects of a fire is required. The Integra II SSAFS is suitable for use in all services up to and including ANSI #2500 and API #10,000 classes.   Isolation kits are available which include the Fire Safe gasket along with hardened steel isolation washers coated with unique and highly durable, proprietary coating. The Integra II SSAFS incorporates high temperature sealing characteristics of Kammprofile with a highly dielectric mineral secondary seal. Applications Flange Isolation with true cathodic protection Critical Fire Safe Applications Eliminate corrosion from forming in the cavities between RTJ flanges where intense modes of hostile chemicals may be present. Protect against corrosion on uncoated or scarred flange faces Mating mismatched dissimilar flanges Isolating between flanges of dissimilar metals to prevent galvanic corrosion Flange isolation with true Cathodic protection Wellhead isolation from inter-connected flow lines Eliminate turbulence and flow-induced erosion between ring joint (RTJ) flanges To seal between flanges subjected to vibrations/cavitations Zero-free leaks for high Sulfur Content crude oil or H2S Gas fugitive emissions, proven through multiple applications. Refer attached datasheet or contact us for further information or technical support.

Integra SSAXT High Temp Isolation Gasket

INTEGRA SSAXT

Integra SSAXT Isolation Gasket is used for High Temperature Severe Service applications requiring Cathodic Protection.

Integra SSAXT® Isolation Gasket is used for High Temperature Severe Service applications requiring Cathodic Protection. The Integra SSAXT® combines the reliability of a Kammprofile retainer with the temperature capabilities of a highly dielectric mineral seal. This gasket is suitable for use in all services up to and including ANSI #2500 and API #10,000 classes.   Isolation kits are available which include high temperature washers and sleeves. Operational Temperature - 427°C Operational Pressure Range - Full Vacuum to ASME B16.5 2500lb Applications Critical High Temperature Applications Eliminate corrosion from forming in the cavities between RTJ flanges where intense modes of hostile chemicals may be present. Protect against corrosion on uncoated or scarred flange faces Mating mismatched dissimilar flanges Isolating between flanges of dissimilar metals to prevent galvanic corrosion Flange isolation with true Cathodic protection Wellhead isolation from inter-connected flow lines Eliminate turbulence and flow-induced erosion between ring joint (RTJ) flanges To seal between flanges subjected to vibrations/cavitations Zero-free leaks for high Sulfur Content crude oil or H2S Gas fugitive emissions, proven through multiple applications. Refer attached datasheet or contact us for further information or technical support.

Kleerband Flange Protectors

KLEERBAND

KleerbandĀ® Flange Protectors are the quick, easy and effective way to apply protection and prevent corrosion

Kleerband® Flange Protectors are the quick, easy and effective way to apply protection and prevent corrosion. Why protect flanges the old way when there is a new, clear advantage to prevent corrosion? Kleerband® Flange Protectors are manufactured of 100% virgin vinyl compound, which allows visual inspection of the flange surface without removing the flange protector.   The Kleerband® Flange Protectors transparent polyband allows 360º continuous inspection with Moisture Proof seal that can hold up to 4lbs of pressure. Kleerband® Flange Protectors are also designed for use on Cathodically isolated flanges to prevent foreign matter from shorting our or bridging over an isolation gasket. Kleerband® Flange protectors are designed to protect flange face, studs and gaskets on raised face, full face and ring joint flanges from atmospheric corrosion encountered in chemical plants, refineries, gas plants, offshore platforms, onshore oil fields, metering stations, water and wastewater plants, pump stations and underground pipelines. In addition, it is non-corroding, providing many years of service life and is completely re-useable. Check out the video link for installation video - https://youtu.be/loAMoMT-P6w Other configurations available -  Stainless Steel For high temperature applications The 7100 Series Flange Protectors are manufactured of 22 gauge 304 or 316 stainless steel band, stainless steel worm-gear strap, and grease fitting.   This standard coupling is practically indestructible and appropriate for extreme temperatures. An exclusive positive loading relief vent and plug assures the complete loading of flange cavities plus allows you to visually inspect the flange without removal of the protector, is standard. The gasket is made of 3/16″ closed cell neoprene for positive seal. Manufactured according to ANSI B16.5 specifications up to 24".  Above 24" please provide the specifications of the flange including the OD. Combind with Radolid® nut and Bolt Protection Caps for full flange protection. Download the brochure or contact one of our Sales Technicians for further information

Mylar Insulating Sleeve

Mylar Insulating Sleeve

Mylar Sleeve / Tube is widely used in flange isolation kits or on it's own to insulate bolts from flanges in an environment where Galvanic Corrosion may occur. Mylar Sleeve has low water absorption and high dielectric strength.

Mylar is used to insulate or isolate bolts from dissimilar metal flanges to avoid galvanic corrossion.  Mylar has excellent dielectric strength and low water absorbtion.  Mylar Sleeves are designed to fit easily over the flange bolts, and may be used with standard size bolts and bolt holes even with some misalignment. Insulating sleeves have a standard wall thickness and are generally used with separate insulating washers such as G10/G11 Glass Epoxy or phenolic. Mylar is the most recognised and industry approved sleeve and bolt insulating material. Industrial Gaskets recommends Mylar Sleeve as it is stronger than Phenolic and less prone to cracking when being torqued or becoming broken during the installation process.  It is available in both Metric and Imperial sizes.  The standard length is 900mm or 3ft and can be supplied in full lengths or we cut to suit your bolt length.  

Phenolic Insulating Washers

Phenolic Insulating Washers

Insulating Washers are generally made of high strength phenolic and provide tough, positive insulation. They are available for most standard bolt sizes and are made to fit over the insulating sleeves.

PROPERTIES Excellent dielectric strength Good machinability Light weight Heat and wear resistant Resists corrosion and chemicals Good mechanical strength & dimensional stability Low moisture absorption  APPLICATIONS Terminal boards Switches Bearings Gears Wear strips Gaskets Washers Transformers Machining components Industrial laminates Insulating Washers are available in kits supplied with gaskets and sleeves or induvidually. Available in phenolic or molded to sleeves in Minlon, Mylar and Polyethelene. Standard bolt sizes in imperial and metric sizes are readily available and stocked.  

Phenolic Sleeve

PHENSLV

Phenolic Sleeve is widely used in flange isolation kits or on its own to insulate bolts from flanges in an environment where Galvanic Corrosion may occur. Phenolic Sleeve has low water absorption and high dielectric strength.

Phenolic Sleeve / Tube is suitable for general electrical applications to assist in isolating bolts from flanges when galvanic corrosion is likely to occur. Phenolic Sleeve is also not recommended for use in alkaline environments and is unaffected by most organis solvents.  Whilst Phenolic Sleeve (and washers) have been widely used over the years it does tend to be fragile and can become brittle and crack or break if under heavy bolt torque or not handled with care. This is where Mylar Sleeve / Tube is now used in place of Phenolic Sleeve / Tube.  Available  in all standard bolt sizes to suit both Imperial and Metric.

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