Spiral wound gaskets are made and assembled in accordance with asme b16. Data specification sheet novus spiral wound gaskets. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Thegasket sealing element consists of a preformed metallic. It is designed for tongue and groove and malefemale flanges. Introducing the spiral wound gasket that reinvents the category. Download spiral wound gaskets dn 15 to 600 asme b 16. The spiral wound gaskets consist of a vshaped strip of metal which is wound into a spiral. The gasket in a bolted flange connection is but one essential component in that complex mechanical device that enables lowleakage service. These gaskets are intended for use on class 150 and 300 applications, where customers traditionally do not use spiral wound gaskets due to concerns about exceeding.
Spiral wound gaskets properties and application spiral wound gaskets are special semimetallic gaskets of great resilience, there fore they are very suitable for applications featuring heavy operating conditions. Flexseal industrial is a full line gasket and oring distributor. The metal strip provides outstanding resilience, while the flexible sealing filler guarantees excellent. Widely used throughout refineries and chemical processing plants, spiral wound gaskets are also effective for power generation, pulp and paper, aerospace, and a variety of valve and specialty applications. The buckling of spiral wound gaskets swgs causes turbulence of the fluid flow inside flanges and may result in leakage failure over time due to the unwinding. Spiral wound gaskets class 150 dimensions of spiral wound gaskets class 150, asme b16. Cgrj and cgirj spiral wound gaskets are designed for use, as a replacement maintenance item, of standard oval and octagonal ring joint gaskets. Klinger maxiflex spiral wound gaskets klinger australia. Graphonic gaskets garlock kammprofile gaskets the garlock edge gasket other metal gaskets garlock manufactures a wide variety of doublejacketed, spiral wound, metalclad and solid metal gaskets for heat exchanger and. The metal strip, in 304, or 316 stainless steel, holds the filler resulting in excellent mechanical resistance, resilience, and recovery. Spiral wound gaskets flexitallic pdf catalogs technical.
Above is the maxiflex spiral wound gaskets basic sealing element. Ptfe virgin white applications spiral wound gaskets are widely used in the. Large winder for swg horizontal style medium winder for swg. Data specification sheet novus spiral wound gaskets properties spiral wound gaskets are suitable for use across a wide gasket stress range.
The style mcs gasket is an exclusive flexitallic design, consisting of a flexitallic spiral wound gasket with an integral solid metal inner ring. It is created by winding alternating strips of metal and filler material. Technical catalogue spiral wound gaskets comdiflex. Macroseal provides a large inventory of spiralwound gaskets, metallic gaskets and. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Automatic winding machine for spiral wound gaskets. The change gasket design combines aspects of both a traditional spiral wound gasket and a kammprofile, improving upon both using. In this article we will discuss the spiral wound gasket basic characteristic and styles. The spiral wound sealing element provides resilience, strength, blowout resistance and superior sealability. Know your flange type when using spiral wound gaskets one of the most commonly specified gaskets in industry is the spiral wound gasket. Spiral wound gaskets maxiflex spiral wound gaskets have the ability to recover under the action of fluctuating loads caused by process fluid pressure and temperature changes, flange face temperature variations, flange rotation, bolt stress relaxation and creep.
We offer superior customer service and are committed to meeting the needs of all. Our spiral wound gaskets are made of a preformed metallic strip and a soft filler material ptfe, or flexible graphite, wound together under pressure. Gasket handbook 1 edition fluid sealing association. The spz spiral wound gasket can withstand severe operation conditions, as the ptfe sealing zone is protected by areas with graphite filler.
Hightemp steam unions extreme environment, class 3000 service hart industrial spiral wound gasket unions are engineered to provide class 3000 service in extreme temperature and environmental conditions. Dimensions of spiral wound gaskets class 150, asme b16. Spiral wound gasket the identification of metallic winding materials and fillers the color coding on outer ring for clear identification, zw spiral wound gaskets nominate a colorcoding system around the outside edge of the outer ring, thus allowing full identification of both the winding strip and filler materials in according to asme b16. Spiral wound gaskets mechanical engineering materials. Available for solidworks, inventor, creo, catia, solid edge. This is a phenomenon that would occur due to edge swelling when the gasket would be affected by confined fluid, as in the case of elastomeric compounds affected by the confined fluids, such as solvents, causing the gasket material to swell and increase the interaction of the gasket against the flange faces. Spiral wound gaskets swg general information and description the sealing element of the spiral wound gasket consists of a vshaped metal strip spirally wound in combination with a soft sealing material filler. Spiral wound gaskets, class 150, nps 12 nps 24, asme b16. All cg and cgi gaskets for these standard flanges are 4. Pdf file, spiral wound cataloggasket indetification, gasket selection. Spiral wound gaskets are manufactured by spirally winding a vshaped metal strip and a strip of nonmetallic filler material. They are manufactured with high purity flexible graphite, and ptfe. Spiral wound gasket is composed of a steel outer ring, a spiral wound sealing strip filler and a special steel inner ring. Clearly stamped in either the outerinner ring is the size, materials constructed from, windings material and filler.
Consult flexitallics entire spiral wound gaskets catalogue on directindustry. The wound spiral also has in addition a metallic outer ring. The primary purpose for this development was the increasingly severe temperatures and pressures used by u. One of the most commonly specified gaskets in industry is the spiral wound gasket. The primary purpose for this development was the increasingly severe temperatures and pressures used. This will not damage the gasket or affect the sealing performance and the ring is provided as a compression limiting stop. Normally the metal layers are separated by a filler, usually asbestos. To request a quote, upload a document in one of the folloiwng formats. Resiliency and strength make spiral wound gaskets an ideal choice under a variety of conditions and applications. Dimensional data for standard spiral wound gaskets o.
Styles cg and cgi can be compressed to the ring thickness, if necessary. Table of dimensions and tolerances of spiral wound gaskets. Spiral wound gaskets mechanical engineering materials scribd. Kammprofile gaskets spiral wound gaskets with inner ring solid metal gaskets low pressure gaskets include. Outer guide ring is fitted to centralise the gasket between the bolts and to act as a compression limiter. Spiral wound gaskets information 3 available styles of spiral wound gaskets 46 dimensions for style w to suit lar ge male and female joints 7 style w spiral wound gasket tolerances 8 dimensions for style w to suit lar ge and small tongue and groove joints double colour coding for spiral wound gaskets as per asme b16. When flexitallic invented the spiral wound gasket in 1912, there was nothing like it. The metal strip holds the filler giving the gasket mechanical resistance and resilience. Pdf spiralwound gaskets swg are used extensively as primary seals in critical joint applications of plant process piping systems in all industries.
Introduction first and foremost the concept of spiral wound gasket construction was originated by flexitallic in 1912, inaugurating the beginning of a new era in safe, effective sealing. Required gasket compression for spiral wound gaskets spiral wound gaskets with internal or external rings, i. The concept of spiral wound gasket construction was originated by flexitallic in 1912, inaugurating the beginning of a new era in safe, effective sealing. Leadercam camprofile fr this profile has a section that performs as the guide ring in a sr spiral wound gasket. The principle the spiral wound function is based on the metal winding filler re lationship and the flange surfaces.
Because of the robust design of the spiral wound gasket, it is. Spiral wound gasket basic characteristic and styles. Operational conditions such as temperature, pressure, and media will dictate selection of the proper spiral wound gasket for your application. Flexitallic style cg and cgi spiral wound gaskets can be asme b16. Pdf generic issues effecting spiralwound gasket performance. Inner rings should be used with spiral wound gaskets on maleandfemale flanges, such as those found in heatexchanger, shell, channel, and coverflange joints.
Spiralwound gaskets, nps 12, nps 34, and nps1 in classes 150,300, and 600, shall be designed so that a uniform bolt stress, based on the nominal bolt root diameter, of 25,000 psi will compress the gasket to a thickness of 0. On the buckling of spiral wound gaskets request pdf. Know your flange type when using spiral wound gaskets garlock. The buckling of spiral wound gaskets swgs causes turbulence of the fluid flow inside flanges and may result in leakage failure over time due to the unwinding of the spirals. The spiral wound gasket element is precision formed using a v shaped metallic winding strip continually wound and incorporating an inner wound soft filler.
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. Learn about spiral wound gasket including dimensions and. These gaskets can be used in flanges with larger surface roughnesses, but in this case the bolt loads should be increased so as to ensure proper function of the gasket. Many spiral wound gaskets for critical applications include an inner guide ring also, which gives the gasket a greater resistance to thermal shock and in the case of vacuum service prevent the filler material being sucked in.
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