Flange Insulation Kits

Corrosion has long been natures most destructive element, but with Lone Star flange insulation products this costly profit robbing item can all but be eliminated. Lone Star engineered insulation products, of consistent high quality, can be used to control and confine electrolytic corrosion in almost every piping system.  Lone Star insulation products are manufactured from materials with superior high dielectric strength, low water absorption and chemical stability to maintain the high quality required in refinery and chemical plant applications. Hydrocarbon exposure, weathering and salt water are no problem for Lone Star insulating materials.  Lone Star quality assurance and high production rate allow our customers to economically protect and lengthen the service life of equipment with little or no down time due to electrolysis. 

Lone Star manufactures a full line of standard flange insulation sets including Type F (Ring) gaskets, Type E (Full Face) gaskets and Type D (API Ring Joint) gaskets. Lone Star Type F and E gaskets are manufactured from 1/8″ thick fabric based phenolic (Nema Grade CE) sheet with either no coating (plain faced) or a Nitrile rubber coating on both faces. Type F & E gaskets are also available in Compressed Non-Asbestos with superior electrical insulation qualities.

Insulation Kits
Flange insulating sets are packaged for one flanged joint, including gasket, sleeves and washers. Each flange set is securely packaged in a cardboard box, clearly labeled as to size, ASA Rating, style and material.Either polyethylene or phenolic sleeves are available with these insulating sets. Polyethylene sleeves are standard and will be furnished unless otherwise specified.

Type D (API Ring Joint) – gaskets are insulating ring joint gaskets made to fit the ring groove of Ring Type Joint flanges. The Type D central gasket is made of medium weave fabric-reinforced phenolic, manufactured to ASA (ANSI) gasket dimensions. Properties are similar to those of phenolic flat central gaskets and are available in the basic octagonal shapes. Oval shapes can be ordered by special request. When installing Type D gaskets, it is also recommended that tape be wrapped around the outside of the flange to prevent foreign material from lodging between the exposed portions and causing “shorting out” of the flanges. Alignment pins should be used whenever possible to assure proper alignment of flanges when installing all flange insulation sets. Pins should be a minimum of 3/32″ (2.38mm) larger than the bolt size.

Type E (Full Face) – gaskets are designed for full protection of flanges, and have the same outside diameter as the flange. Each gasket has precision-located bolt holes. Upon installation, it is recommended that tape be wrapped around the outside of the flange to prevent foreign material from lodging between the exposed portions and causing “shorting out” of the flanges. All Type E gaskets are easily centered with the flange inside diameter. Gaskets with slightly larger outside diameters are available on request.

Type F (Ring) – gaskets are designed to fit the raised face portion of flanges. The outside diameter of the gasket is slightly smaller than the inside diameter of the bolt hole circle. The outside diameter is designed for alignment by the insulating sleeves. The central gaskets are available in the same materials as Type E. Upon installation, it is recommended that tape be wrapped around the outside of the flange to prevent foreign material from lodging between the exposed portions and causing “shorting out” of the flanges. 

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About Lone Star Sealing Technologies
Lone Star Sealing Technologies was founded in 2004 to better serve the customers of Lone Star Fasteners and Walker Bolt. Our core product line consists of API Ring Joint Gaskets, Proprietary Wellhead Gaskets and Spiral Wound Gaskets. We also provide specialty cut gasket services for our OEM clients as well as general distribution for Raised Faced and Full Faced flange gaskets to ANSI B16.5 dimensions. LoneStar have a variety of high quality of gaskets and other options for fluid sealing applications built to endure, even under the toughest conditions. You can be confident that we go to every extreme to make sure that our products are built to perform. As manufactures and distributors of industrial gaskets for the oil and gas, and petrochemical industries, we know that it takes to produce quality that lasts and we continually tweak product lines in an effort to improve even the most proven gasket in the industry. In 2005 Lone Star acquired the assets of K&W Manufacturing, a Houston based API Ring Gasket producer. Established in 1964, K & W Manufacturing is an industry leader, among a few selected manufacturers in the world, approved by the American Petroleum Institute to apply the API monogram to Ring Joint Gaskets. In 2006 Lone Star acquired Grange Gaskets and Grange Precision Engineering (now Lone Star Grange) based in Leeds, England. Since 1948, Grange has been one of the United Kingdoms premier specialty gasket companies, specializing in Heat Exchange Gaskets of all types and configurations. Grange is world renowned for it's specialty clad gasket capabilities and quick service on spiral wound gaskets.

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