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Bolt Insulation - Minlon Top Hat

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 M33 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 2010

Doniflon 2010 is a biaxially orientated PTFE filled with hollow glass microbeads that gives high compressibility on pressure sensitive connections.

Industrial Gaskets is an Authorised distributor of Donit® Doniflon2010.   Donit® Doniflon2010 is biaxially orientated PTFE sheet produced from virgin PTFE resin filled with hollow glass microbeads. Donit® Doniflon2010 is recommended for the pharmaceutical and food industries.  A specially designed sealing material for use in applications requiring low bolts loads like glass lined or ceramic flanges, uneven or distorted flanges.   It has enhanced creep performance compared to virgin PTFE materials. Donit® Doniflon2010 has a superior chemical resistance to nearly all media with the exception of molten alkali metals, fluorine compounds and hydrofluoric acid.   Composition PTFE resin filled with Hollow Glass Microbeads / Colour - Blue Specifications Complies with FDA Regulation 21 CFR 177.1550 and Food Legislation EU Regulation No. 1935/2004 Applications STEAM SUPPLY COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY CHEMICAL INDUSTRY PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY REFRIGERATION AND COOLING PHARMACEUTICAL INDUSTRY VALVES Properties Material for superior sealability, chemical resistance great mechanical and thermal resistance. Dimensions of Standard Sheets Sheet size (mm): 1500 x 1500 Thickness (mm):  1.5 | 2.0 | 3.0Other dimensions and thicknesses are available on request.

Doniflon 2010

Doniflon 2010 is a biaxially orientated PTFE filled with hollow glass microbeads that gives high compressibility on pressure sensitive connections.

Industrial Gaskets is an Authorised distributor of Donit® Doniflon2010.   Donit® Doniflon2010 is biaxially orientated PTFE sheet produced from virgin PTFE resin filled with hollow glass microbeads. Donit® Doniflon2010 is recommended for the pharmaceutical and food industries.  A specially designed sealing material for use in applications requiring low bolts loads like glass lined or ceramic flanges, uneven or distorted flanges.   It has enhanced creep performance compared to virgin PTFE materials. Donit® Doniflon2010 has a superior chemical resistance to nearly all media with the exception of molten alkali metals, fluorine compounds and hydrofluoric acid.   Composition PTFE resin filled with Hollow Glass Microbeads / Colour - Blue Specifications Complies with FDA Regulation 21 CFR 177.1550 and Food Legislation EU Regulation No. 1935/2004 Applications STEAM SUPPLY COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY CHEMICAL INDUSTRY PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY REFRIGERATION AND COOLING PHARMACEUTICAL INDUSTRY VALVES Properties Material for superior sealability, chemical resistance great mechanical and thermal resistance. Dimensions of Standard Sheets Sheet size (mm): 1500 x 1500 Thickness (mm):  1.5 | 2.0 | 3.0Other dimensions and thicknesses are available on request.

Doniflon 2020

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® Doniflon2020 is biaxially orientated PTFE sheet produced from virgin PTFE resin filled with silica. Donit® Doniflon2020 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. Donit® Doniflon2020 as a superior chemical resistance to nearly all media and commonly used concentrated inorganic acids.  Not suitable for molten alkali metals, fluorine compounds and hydrofluoric acid.   Composition PTFE resin filled with Silica / Colour - Fawn Specifications Complies with FDA Regulation 21 CFR 177.1550 and Food Legislation EU Regulation No. 1935/2004 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.

Doniflon 2020

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® Doniflon2020 is biaxially orientated PTFE sheet produced from virgin PTFE resin filled with silica. Donit® Doniflon2020 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. Donit® Doniflon2020 as a superior chemical resistance to nearly all media and commonly used concentrated inorganic acids.  Not suitable for molten alkali metals, fluorine compounds and hydrofluoric acid.   Composition PTFE resin filled with Silica / Colour - Fawn Specifications Complies with FDA Regulation 21 CFR 177.1550 and Food Legislation EU Regulation No. 1935/2004 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.

Doniflon 2030

Doniflon 2030 is a biaxially orientated PTFE filled with barium sulphate that can be used with strong acids.

Industrial Gaskets is an Authorised distributor of Donit® Doniflon2030.   Donit® Doniflon2030 is biaxially orientated PTFE sheet produced from virgin PTFE resin filled with barium sulphate. Donit® Doniflon2030 is recommended for the pharmaceutical and food industries.  It has enhanced creep performance compared to virgin PTFE materials. Donit® Doniflon2010 has a superior chemical resistance to nearly all media especially for strong alkalis.  Not suitable for molten alkali metals and fluorine compounds.   Composition PTFE resin filled with Barium Sulphate / Colour - White Specifications Complies with FDA Regulation 21 CFR 177.1550 and Food Legislation EU Regulation No. 1935/2004 Applications STEAM SUPPLY COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY CHEMICAL INDUSTRY PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY REFRIGERATION AND COOLING PHARMACEUTICAL INDUSTRY VALVES PAPER AND CELLULOSE INDUSTRY Properties Material for superior sealability, chemical resistance great 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.

Doniflon 2030

Doniflon 2030 is a biaxially orientated PTFE filled with barium sulphate that can be used with strong acids.

Industrial Gaskets is an Authorised distributor of Donit® Doniflon2030.   Donit® Doniflon2030 is biaxially orientated PTFE sheet produced from virgin PTFE resin filled with barium sulphate. Donit® Doniflon2030 is recommended for the pharmaceutical and food industries.  It has enhanced creep performance compared to virgin PTFE materials. Donit® Doniflon2010 has a superior chemical resistance to nearly all media especially for strong alkalis.  Not suitable for molten alkali metals and fluorine compounds.   Composition PTFE resin filled with Barium Sulphate / Colour - White Specifications Complies with FDA Regulation 21 CFR 177.1550 and Food Legislation EU Regulation No. 1935/2004 Applications STEAM SUPPLY COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY CHEMICAL INDUSTRY PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY REFRIGERATION AND COOLING PHARMACEUTICAL INDUSTRY VALVES PAPER AND CELLULOSE INDUSTRY Properties Material for superior sealability, chemical resistance great 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

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, Lamons 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.

Spiral Wound - Style CGIR

Style CGIR windings and construction is similar to the Style CR however it has a solid 3.2mm thick Inner ring fitted into the gasket bore. Commonly used in arduous or critical service conditions.

The Inner Ring prevents turbulence and erosion damage to the flange faces at the bore and also acts as a shield to protect the gasket bore and inner windings. Materials commonly used are Mild or Carbon Steel, 316 Stainless Steel and 304 Stainless Steel. Other materials include Titanium, Monel, Hastalloy, 321 and 320 Stainless Steel Nickel. Stocks of Style CGIR Spiral Wound Gaskets are held from 15mm through to 750mm in standard flange sizes #150 (ANSI 150) to #1500 (ANSI 1500).

TESNIT BA-GL

Donit Tesnit BA-GL combines excellent thermal and chemical resistance with outstanding mechanical properties, especially torque retention.

Industrial Gasket Authorised Distributor of Donit Tesnit® BA-GL.  Donit Tesnit BA-GL is particularly suited for gas and steam supplies, heating systems, pumps and compressors.  Donit Tesnit BA-GL combines excellent thermal and chemical resistance with outstanding mechanical properties, especially torque retention. Donit Tesnit BA-GL has superior dielectric strength is an excellent material choice for Flange Insulation or Isolation. Composition Glass fibres, aramid fibres, inorganic fillers, NBR binder. Optional steel wire mesh or expanded steel insert on request. Properties This material combines excellent thermal, chemical and mechanical properties. It has outstanding bolt torque retention. Applications COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY HEATING SYSTEMS HIGH TEMP. APPLICATIONS PAPER AND CELLULOSE INDUSTRIES PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY POWER PLANT REFRIGERATION AND COOLING SHIPBUILDING STEAM SUPPLY VALVES Certificates - DIN-DVGW DIN 3535-6 - DVGW VP 401 - DVGW KTW - BAM (Oxygen)- TA-Luft (VDI 2440) - WRAS - EC 1935/2004 Surface treatment Surface finish is 4AS Dimensions of standard sheet Sheet size (mm): 1500 x 1500  Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0 Other dimensions and thicknesses are available on request.

TESNIT BA-GL

Donit Tesnit BA-GL combines excellent thermal and chemical resistance with outstanding mechanical properties, especially torque retention.

Industrial Gasket Authorised Distributor of Donit Tesnit® BA-GL.  Donit Tesnit BA-GL is particularly suited for gas and steam supplies, heating systems, pumps and compressors.  Donit Tesnit BA-GL combines excellent thermal and chemical resistance with outstanding mechanical properties, especially torque retention. Donit Tesnit BA-GL has superior dielectric strength is an excellent material choice for Flange Insulation or Isolation. Composition Glass fibres, aramid fibres, inorganic fillers, NBR binder. Optional steel wire mesh or expanded steel insert on request. Properties This material combines excellent thermal, chemical and mechanical properties. It has outstanding bolt torque retention. Applications COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY HEATING SYSTEMS HIGH TEMP. APPLICATIONS PAPER AND CELLULOSE INDUSTRIES PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY POWER PLANT REFRIGERATION AND COOLING SHIPBUILDING STEAM SUPPLY VALVES Certificates - DIN-DVGW DIN 3535-6 - DVGW VP 401 - DVGW KTW - BAM (Oxygen)- TA-Luft (VDI 2440) - WRAS - EC 1935/2004 Surface treatment Surface finish is 4AS Dimensions of standard sheet Sheet size (mm): 1500 x 1500  Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0 Other dimensions and thicknesses are available on request.

TESNIT BA-U

Donit Tesnit BA-U as a general-purpose gasket material. It is well designed for gas and potable water supplies.

Industrial Gaskets is an Authorised distributor of Donit Tesnit® BA-U.   Donit Tesnit® BA-U combines very good thermal, chemical, and mechanical properties that makes Donit Tesnit® BA-U as a general-purpose gasket material. It is well designed for gas and potable water supplies. Certified to AS/NZ4020 for Potable Water and Australian Gas Association (AGA) AS4623. Donit Tesnit BA-U has superior dielectric strength is an excellent material choice for Flange Insulation or Isolation, especially where Potable Water is a requirement. Composition Aramid fibres, inorganic fillers, NBR binder. Optional steel wire mesh or expanded steel insert on request. Applications AUTOMOTIVE AND ENGINE BUILDING INDUSTRY COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY GENERAL PURPOSE HEATING SYSTEMS PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY REFRIGERATION AND COOLING SHIPBUILDING VALVES WATER SUPPLY  Properties Material for general purpose with good mechanical and thermal properties and low gas permeability. Surface treatment Surface finish is 4AS. Dimensions of standard sheet Sheet size (mm): 1500 x 1500  Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0 Other dimensions and thicknesses are available on request. Certificates - DIN-DVGW DIN 3535-6 - SVGW DIN 3535-6 - DVGW VP 401 - DVGW KTW - DVGW W270 - TA-Luft (VDI 2440) - BAM (Oxygen) - WRAS & AS/NZ4020 Potable Water - Germanischer Lloyd - ABS- EC 1935/2004 -AGA4623-2008

TESNIT BA-U

Donit Tesnit BA-U as a general-purpose gasket material. It is well designed for gas and potable water supplies.

Industrial Gaskets is an Authorised distributor of Donit Tesnit® BA-U.   Donit Tesnit® BA-U combines very good thermal, chemical, and mechanical properties that makes Donit Tesnit® BA-U as a general-purpose gasket material. It is well designed for gas and potable water supplies. Certified to AS/NZ4020 for Potable Water and Australian Gas Association (AGA) AS4623. Donit Tesnit BA-U has superior dielectric strength is an excellent material choice for Flange Insulation or Isolation, especially where Potable Water is a requirement. Composition Aramid fibres, inorganic fillers, NBR binder. Optional steel wire mesh or expanded steel insert on request. Applications AUTOMOTIVE AND ENGINE BUILDING INDUSTRY COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY GENERAL PURPOSE HEATING SYSTEMS PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY REFRIGERATION AND COOLING SHIPBUILDING VALVES WATER SUPPLY  Properties Material for general purpose with good mechanical and thermal properties and low gas permeability. Surface treatment Surface finish is 4AS. Dimensions of standard sheet Sheet size (mm): 1500 x 1500  Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0 Other dimensions and thicknesses are available on request. Certificates - DIN-DVGW DIN 3535-6 - SVGW DIN 3535-6 - DVGW VP 401 - DVGW KTW - DVGW W270 - TA-Luft (VDI 2440) - BAM (Oxygen) - WRAS & AS/NZ4020 Potable Water - Germanischer Lloyd - ABS- EC 1935/2004 -AGA4623-2008

TESNIT BA-U

Donit Tesnit BA-U as a general-purpose gasket material. It is well designed for gas and potable water supplies.

Industrial Gaskets is an Authorised distributor of Donit Tesnit® BA-U.   Donit Tesnit® BA-U combines very good thermal, chemical, and mechanical properties that makes Donit Tesnit® BA-U as a general-purpose gasket material. It is well designed for gas and potable water supplies. Certified to AS/NZ4020 for Potable Water and Australian Gas Association (AGA) AS4623. Donit Tesnit BA-U has superior dielectric strength is an excellent material choice for Flange Insulation or Isolation, especially where Potable Water is a requirement. Composition Aramid fibres, inorganic fillers, NBR binder. Optional steel wire mesh or expanded steel insert on request. Applications AUTOMOTIVE AND ENGINE BUILDING INDUSTRY COMPRESSORS AND PUMPS FOOD INDUSTRY GAS SUPPLY GENERAL PURPOSE HEATING SYSTEMS PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY REFRIGERATION AND COOLING SHIPBUILDING VALVES WATER SUPPLY  Properties Material for general purpose with good mechanical and thermal properties and low gas permeability. Surface treatment Surface finish is 4AS. Dimensions of standard sheet Sheet size (mm): 1500 x 1500  Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0 Other dimensions and thicknesses are available on request. Certificates - DIN-DVGW DIN 3535-6 - SVGW DIN 3535-6 - DVGW VP 401 - DVGW KTW - DVGW W270 - TA-Luft (VDI 2440) - BAM (Oxygen) - WRAS & AS/NZ4020 Potable Water - Germanischer Lloyd - ABS- EC 1935/2004 -AGA4623-2008

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