Edmonton, b 8700 v 7803989 27 spiral wound gaskets spiral wound gaskets are designed for asme b16. The change gasket design combines aspects of both a traditional spiral wound gasket and a kammprofile, improving upon both using. Leadercam camprofile fr this profile has a section that performs as the guide ring in a sr spiral wound gasket. Table of dimensions and tolerances of spiral wound gaskets. This dynamic leadership is is backed up by iso certification, comprehensive engineering support and knowledgeable customer service, in short, total quality manangement.
Spiral wound gaskets are manufactured in many different material combinations as well as a wide range of dimensions and shapes. We combine excellent technical knowledge with customer and demandoriented service. Required gasket compression for spiral wound gaskets spiral wound gaskets with internal or external rings, i. Mica is sometimes chosen in place of graphite however it exhibits very poor sealing characteristics. Gasket handbook 1st edition fluid sealing association. Their ability to be made from almost any metal means they can be produced to withstand almost any corrosive medium and temperature from cryogenic to over 0c. However, from a sealing technology point of view, at diameters above 1100 mm is recommended the use of grooved gaskets. The spiral wound gasket outer centring ring provides the following benefits. In recent years, garlock metallic gaskets has introduced some of the industrys most innovative production methods and products. Type swi spiral wound gasket with inner support ring.
Profiles type sw spiral wound gasket without inner and outer ring for force shunt and groove and spring applications. Pdf generic issues effecting spiralwound gasket performance. Our standard production program comprises a range of spiral wound gaskets with inner diameters of 10 mm to 3000 mm and a nominal thickness of 3. We would like to show you a description here but the site wont allow us. Spiral wound gaskets are made and assembled in accordance with asme b16. The following is a reprint of the gasket tables found in pamphlet 95 with the exception that the tables may contain gaskets and gasket material s that have been added since the most recent publication of pamphlet 95. Pdf spiralwound gaskets swg are used extensively as primary seals in critical joint applications of plant process piping systems in all industries. Technical catalogue spiral wound gaskets comdiflex. Spiral wound gaskets a visual guide associated gaskets spiral wound gaskets are the most common type of gasket used for sealing in high pressure environments. They are also often used in pump applications with recessed flanges.
These gaskets are widely used and cover a large array of applications. Flexitallic style cg and cgi spiral wound gaskets can be asme b16. Klinger maxiflex spiral wound gaskets klinger australia. Style ls gaskets have the inherent strength, resiliency and blowout resistance of spiral wound gaskets. We manufacture spiral wound gaskets in sizes from dn 10 to a diameter of 1200 mm. The od normally extends to the surface of the bolts. Spiral wound gaskets style 304 with outer ring metallic thickness standard thickness of the metallic strip is 0.
Gasket handbook 1 edition fluid sealing association. The primary purpose for this development was the increasingly severe temperatures and pressures used by u. Type swio spiral wound gasket with centring ring and inner ring. Table 22 recommended torque cg spiral wound gaskets 33 table 23 recommended torque cgi spiral wound gaskets 34 table 24 bolting data for asme b16. An electrical conductor and highly noble so promotes corrosion. Introducing the spiral wound gasket that reinvents the category. Styles cg and cgi can be compressed to the ring thickness, if necessary. Spiral wound gasket inwards buckling 119 figure 54.
Chlorine institute pamphlet 95 gaskets for chlorine service. Spiral wound gaskets are available for classes 150 to 2500. Spiral wound gasket with outer 2nd inner lngi style cross section swg swg 1808 1806 1804 1803 ir or oir. 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. Double colour coding for spiral wound gaskets as per asme b16. All cg and cgi gaskets for these standard flanges are 4. Teadit metalflex spiral wound gaskets styles 9, 9m, 9mcmp, 9rj, 9mrj, 9mxhr the construction of this gasket is a circular metal winding with an outer centering ring. The material for the metallic strip conforms to aisi 3043163221. Custom filler, winding strip, guide ring and inner ring materials are available upon request. Its uses are similar to the spiral wound gasket profile s.
The primary purpose for this development was the increasingly severe temperatures and pressures used. In this article we will discuss the spiral wound gasket basic characteristic and styles. The most widely used composite type gasket is a spiral wound gasket. Ptfe virgin white applications spiral wound gaskets are widely used in the. No other company knows more about spiral wound gaskets, in fact, flexitallic invented the spiral wound gasket. The spiral wound gaskets consist of a vshaped strip of metal which is wound into a spiral. Normally the metal layers are separated by a filler, usually asbestos. Maxiflex spiral wound gaskets combine the ease of sealing a graphite, ptfe or mica filler with the strength afforded by a specially profiled metallic, springlike. The objective is to make available in india, spiral wound gaskets manufactured to the most exacting international standards such as api 601, asme b16. Referring to the title failure analysis of pipe joint gaskets spiral wound, this gasket is suitable for use in piping systems spiral wound gasket designs are typically used in flat faced pipe flanges. Klinger maxiflex spiral wound gaskets also meet the tightness requirements of taluft.
Operational conditions such as temperature, pressure, and media will dictate selection of the proper spiral wound gasket for your application. This part of iso 7005 establishes a base specification for pipe flanges suitable for general purpose and industrial applications including, but not limited to, chemical process industries, electric power generating industries, petroleum and natural gas industries. When flexitallic invented the spiral wound gasket in 1912, there was nothing like it. It places responsibility for the selection of a flange series with the purchaser. Maestral offers a multiscale scientific approach combining tests. The sealing element is made of alternating plies of a specified metal and soft sealing material. The vitaflex and flexseal spiralwound gasket concept can solve a large. Inner rings should be used with spiral wound gaskets on maleandfemale flanges, such as those found in heatexchanger, shell, channel, and coverflange joints. It is suitable for wide range of pressure and temperature class. 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. This will not damage the gasket or affect the sealing performance and the ring is provided as a compression limiting stop. By combining different winding materials and metals the gasket can.
Garlock flexseal spiral wound gaskets are ideal for. Garlock metallic gaskets, a division of garlock, manufactures spiral wound, serrated metal, metal clad, solid metal and metal core gaskets at its facility in houston, texas. 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. Outer ring it is made of carbon steel and painted in order to avoid corrosion although it. Spiral wound gaskets, class 150, nps 12 nps 24, asme b16. Gasket standard types gaskets without centering and inner ring type. 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. Clearly stamped in either the outerinner ring is the size, materials constructed from, windings material and filler. Spiral wound gaskets can be fabricated of any metal which is available in thin strip and which can be welded. Spiral wound gaskets of nonstandard dimensions and shapes, and larger diameters are available on request.
Spiral wound gasket basic characteristic and styles. Spiral wound graphite gaskets will tolerate certain irregularities and flange or sealing face deformations more than most other gasket types. These types of gasket are used in higherpressure applications. The metal is intended to offer strength and resilience while the nonmetallic components provide conformability and sealabililty. Dimensions spiral wound gaskets according to en 15142 for.
Dims spiral wound gaskets en 15142 for flanges according to din en 10921. This process of precise winding density control provides a gasket designed to meet your specified seating stress and assures consistent sealing of your most critical fluids. Semi metallic gaskets are made by combining soft materials such as fillers, facings. It is designed for tongue and groove and malefemale flanges. Gaskets for pipe flanges which includes spiral wound gaskets and. These gaskets can be used in flanges with larger surface roughnesses, but in this.
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