Spiral wound gasket bridged to guide ring us5823542a en 19951222. Flexitallic style cg and cgi spiral wound gaskets can be asme b16. A spiral wound gasket for low load sealing of a fluid conductor, said gasket comprising. Not suitable for handling crude acids or aqueous solutions of salts in the neutral or acid range. Spiral wound gaskets kammprofile gaskets corrugated metal gasket cmg metal jacketed gaskets high temperature gaskets htg corrukamm.
Spiral wound gaskets kammprofile gaskets corrugated metal gasket cmg metal jacketed gaskets. Lamons corrugated metal gaskets the lamons cmg family of products are considered the standard in respect to corrugated metal gasket technology. Gaskets for pipe flanges which includes spiral wound gaskets and nonmetallic. Gasket weights based on 304 wire, flexite super filler and. Scribd is the worlds largest social reading and publishing site.
Its called flexpro because it offers the compressibility of a sheet gasket for low sealing stress, along with the bolt tightness of a spiral wound gasket. Metallicgasket materials metal gaskets,, solid metal gaskets, metaljacketed gaskets metal clad and solid metal heat exchanger gaskets, 1515 17 20 21 22 heat exchanger gaskets standard shape index spiral wound gaskets. Spiral wound gasket dimen sions for these flanges are listed by pressureclass and nominal pipe size beginning at the bottom of page 7. Lamons manufactures and supplies a large variety of ring type joint gaskets. From page 22, sizing spiral wound gaskets tact lamons sales department, or a technical. The flexitallic spiral wound gasket is the precisionengineered solution for flanged joints, heat exchangers, boiler handholes, manholes, and other hightemperature, highpressure applicationsproviding resistance to virtually every known corrosive and. Other reputable spiral wound gasket manufacturers are garlock and lamons. Gaskets material mechanical seals, orings, packing and seals. Metallic gaskets products metal gaskets lamons manufactures and supplies a large variety of ring type joint gaskets. A high rate of failure may be expected in hot water service ifthe. Lamons is one of the largest gasket and bolt suppliers in. Lamons metallic gasket materials carbon steel commercial quality sheet steel with an upper temperature limit of approx imately 1o00f. Custom filler, winding strip, guide ring and inner ring materials are available upon request.
Lamons is one of the largest gasket and bolt suppliers in the world, committed to quality. Lamons wrilp gasket facedfilled with flexible graphite or ptfe covering layers ptfe is rigidly bonded and completely encapsulating carbon steel inner ring can also be monel for critical service machined serrations create point contactloading basic spiral wound design is consistent with standard design practice. Flexseal industrial is a full line gasket and oring distributor. Previously api 601, the new specification is asme b16. Lamons and parker hannifin corporation parker have. Lamons is a leader in the manufacturing of spiral wound gaskets as.
Lamons kammprofile gaskets are recognized as a problem solver for heat exchangers, large vessels, and equipment that experience excessive movement due to thermal expansion. Ceramic material is also used as a filler material in spiral wound gaskets. The metal winding has a nonplanar crosssection to inhibit buckling under compression. Nov 23, 2014 metallicgasket materials metal gaskets,, solid metal gaskets, metaljacketed gaskets metal clad and solid metal heat exchanger gaskets, 1515 17 20 21 22 heat exchanger gaskets standard shape index spiral wound gaskets. Also, ringjoint groove dimensions were not included, because they were included in asme ansi b16. Lamons ring type joint rtj standard size gaskets are manufactured in accordance to api 6a, api 17d and asme b16. Spiral wound gaskets first and foremost the concept of spiral wound gasket construction was originated by flexitallic in 1912, starting a new era in safe, effective sealing. Types of gaskets for flanges soft, spiral, ring joint. The gasket in a bolted flange connection is but one essential component in that complex mechanical device that enables lowleakage service.
Developing materials that push the parameters of heat, pressure and chemical resistance to allow you to imagine new and better processes. Gasket handbook 1 edition fluid sealing association. Spiral wound gaskets are special semi metallic gaskets of great strength and resilience, therefore they are suitable for use under heavy operating conditions. Our facilities all over the world stock a wide range of sizes and materials ready. Lamons is one of the largest gasket and bolt suppliers in the. Spiral wound gasket style cg with internal ring for an additional compression limiting stop, with flexible graphite filler. Basic spiral wound design incorporates the lamons lc or. Lamons style w a winding is made of alternate plies of a metal wire and a soft nonmetallic filler.
This type of gasket can be used in all pressures from vacuum to the standard 2500 pressure class flange ratings. Thermiculite 835 is a high temperature filler material for spiral wound gaskets. A spiral wound gasket comprises an annulus constituted by a plurality of superposed turns of a profiled metal strip wound upon itself to form a spiral and, interposed between at least some of said superposed turns, a number of turns of a relatively soft sealant material in strip form, the thickness of said metal strip being selected so that prior to use the wound metal spiral is essentially. Wrihtg spiral wound gasket lamons spiraseal gaskets are manufactured. Lamons gasket co priority date the priority date is an assumption. Metallic gaskets are available in many forms including. The spiral winding is formed of interdisposed windings of a metal and an elastomer sealant. This spiral wound gasket is manufactured by spirally winding a preformed vshaped metal strip and various filler on the outer. Flexitallic spiral wound gaskets to combat the effects of pressure and temperature fluctuations, flexibility and recovery are essential. The gasket generally includes a spiral wound portion and an outer guide ring to limit the compression of the gasket. Gasket handbook 1st edition fluid sealing association. Required gasket compression for spiral wound gaskets spiral wound gaskets with internal or external rings, i. He testified that the new spiral wound gaskets installed on the sealand ship came from several sources, including lamons. Spiral wound gaskets can be fabricated of any metal which is available in thin strip and which can be welded.
Lamons also utilizes mica in conjunction with oxidation resistant grade flexible graphite as a filler material for spiral wound. Edmonton, b 8700 v 7803989 27 spiral wound gaskets spiral wound gaskets are designed for asme b16. Flexitallic gaskets 150 flexible graphite filler cgi spiral wound gasket manufacturer. Apparatus and method for manufacturing rubberwrapped spiral wound gaskets. Method and apparatus for assembling spiral wound gasket rings into gauge rings us5664791a en 19951214. Spiralwound be the surface finish of the gasket seating surface. The change gasket design combines aspects of both a traditional spiral wound gasket and a kammprofile, improving upon both using. The spiral wound gasket industry is currently adapting to a change in the specification covering spiral wound gaskets. The metal wire in the gasket is preformed into a chevron configuration, allowing superior resiliency and selfadjustment when compared to conventional gaskets. The primary purpose for this development was the increasingly severe temperatures and pressures used. May 15, 2019 introducing the spiral wound gasket that reinvents the category. The changehf is suitable for use in hfalky service.
Spiral wound gasket inwards buckling 119 figure 54. Spiral wound cylinder head gasket us6665925b1 en 20011211. Flanges that create very high compressive loads might require a metallic spiral wound or kammprofile, but many can also be sealed with a fiber. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed. Styles cg and cgi can be compressed to the ring thickness, if necessary. The softer gaskets would require seating stress in the range of 5,000 psi.
Low compression winding construction, which minimizes the required seating load and offsets the. Doud testified about a specific job in the 1970s on a sealand ship. It is satisfactory for service up to approximately 2000. The kammpro provides one of the tightest seals combined with superior load bearing characteristics. Flexitallic usa innovative gasket and sealing solutions. At ttl we carry the full line of lamons spiral wound gaskets. Help from lamons lamons has experienced gasket sales personnel and engineers ready to assist you on your special requirements. Spiral wound gaskets are available for classes 150 to 2500. Spiral wound wires of a choice of commercially available metals. When flexitallic invented the spiral wound gasket in 1912, there was nothing like it. Double colour coding for spiral wound gaskets as per asme b16. Lamons kammpro gaskets are recognized as a problem solver for heat exchangers, large vessels and equipment that experience excessive movement due to thermal expansion. The substrate geometry promotes recovery and resilience through thermal cycles and extended service life.
Lamons spiral wound gaskets are available in a variety of styles to suit the particular flange facing being utilized on the flanges. Solid metal gaskets that require very smooth, plain surface finishes and high clamping forces in order to seal. Browse the different lamons spiral wound gaskets below, they are categorized under basic, specialty, and popular types. Corrugated metal gasket cmg metal jacketed gaskets. Spiral wound gaskets can also be manufactured with variable densities, i.
Combinations with soft fillers such as doublejacketed and spiral wound that can tolerate greater surface roughness and will seat with lesser compressive forces. We offer superior customer service and are committed to meeting the needs of all. A spiral wound gasket able to compress and seal under various loads and provide sealing capabilities. We try to use softer gaskets in these as well, although fiber gaskets and graphlock will often work.
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