Spiral wound gasket datasheet styles sealing element thickness uncompressed spiral wound gaskets are available in the following thicknesses. Flexitallic calls their kammprofile gasket lineup, flexpro. Inner rings should be used with spiral wound gaskets. This data sheet relates to the material as supplied. Spiral wound gaskets are precisionengineered for flanged joints, heat exchangers, boiler handholes, manholes and hightemperature applications, and offer resistance to corrosive and toxic elements. This gasket are manufactured by winding of metallic strip, preformed v, alternated with inorganic fillers, can be made on specific standards asme, api, uni en or customers design. Due to this combination of materials the spiral wound gasket is suitable for sealing under severely fluctuating. Rx tefmet rx tefmet datasheet 48kb moulded ptfe ring with perforated stainless steel insert. The spiral wound sealing element is manufactured by spirally winding a preformed metallic strip and filler material around the periphery of a metal mandrel. 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.
Flexseal industrial is a full line gasket and oring distributor. Semimetallic gaskets are designed to feature soft, pliable sealing materials which enhance the tightness of the assembly with lower overall load requirements when compared to full metallic gaskets. Data sheet spiral wound gaskets description spiral wound gaskets are special semimetallic gaskets of great strength and resilience, therefore they are suitable for use under heavy operating conditions. Corrugated metal gasket cmg metal jacketed gaskets.
The information contained in this technical data sheet are based on our experience. Properties and application parameters shown throughout this datasheet are. Spiral wound gaskets should always be in contact with the flange and should not protrude into the pipe or project from the flange. Spiral wound graphite gaskets will tolerate certain irregularities and flange or sealing face deformations more than most other gasket types. Spiral wound gaskets spiral wounds are available in a fill range of styles and material and are manufactured in accordance with asme b16. It is created by winding alternating strips of metal and filler material. Spiral wound gaskets can be used to seal fluid pressures up to 250 bar and from cryogenic temperatures up to elevated temperatures of oc. When looking for a high pressure and high temperature gasket sprial wound gaskets are the industries standard. 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. Spiral wound gaskets can be used in flanges with various flange face configurations. 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. 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. This dynamic leadership is is backed up by iso certification, comprehensive engineering support and knowledgeable customer service, in short, total quality manangement.
Sf 3300 complies with the requirements of the bs 7531 grade x specification. Vshaped metal strip spirally wound in combination with a soft, filler material. Data specification sheet novus spiral wound gaskets properties spiral wound gaskets are suitable for use across a wide gasket stress range. Phoenix spiral wound gaskets comprise a preformed metal strip and a softer filler material, spirally wound together to form a seal with both excellent. Spiral wound gaskets with pv370 quest gasket and supply. Edmonton, b 8700 v 7803989 27 spiral wound gaskets spiral wound gaskets are designed for asme b16. Style aspcg spiral wound gaskets are ideal for high temperature and high pressure applications. This will not damage the gasket or affect the sealing performance and the ring is provided as a compression limiting stop. The type of configuration is the main determinant of the style of spiral wound gasket used. Spiral wound gaskets with inner and outer supporting rings for welded flanges with raised face and specified via pn and class, data sheet 923925 edition. We manufacture spiral wound gaskets in sizes from dn 10 to a diameter of 1200 mm. An important consideration when using spiral wound gaskets is to control the maximum compression the gasket is subjected to during gasket installation.
Resources to help you determine the right solution for your application. 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. These gaskets are intended for use on class 150 and 300 applications, where customers traditionally do not use spiral wound gaskets. Required gasket compression for spiral wound gaskets spiral wound gaskets with internal or external rings, i. 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. The inner retaining ring increases the axial rigidity and resilience of the gasket. The vshaped metal strip is spirally wound with the soft material filler. A spiral wound gasket consists of thin metal windings wound together with a soft filler material such as graphite or ptfe placed between the windings.
Because of the robust design of the spiral wound gasket. The sealing element is manufactured by interleaving plies of alternating metallic winding strip and filler to create a gasket. Style ls gaskets have the inherent strength, resiliency and blowout resistance of spiral wound gaskets. The metal strip provides outstanding recovery, while the flexible filler guarantees excellent sealing. Gasket datasheets blind flange sizes 12 through 24 spiral wound gaskets. Data specification sheet novus spiral wound gaskets special profiles in the event of a graphite filled spiral wound possibly causing an undesirable reaction between graphite and the medium to be sealed, or of a possible medium contamination, the problem can be solved by using a spiral wound gasket with a gtzone.
The spiral wound gasket with center ring is for use w ith flat face and raised face flanges, this gasket features increased compressive. Cold flow of ptfe is reduced to a minimum envr pure ptfe envelope with fibre gasket. Inner and outer diameters are reinforced with several plies of metal without. 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. Flexitallic sf 3300 is suitable for use across a wide range of.
Made of expanded ptfe and an envelope of compressed eptfe. The inside diameter is closed for a minimum diffusion. Metallic gaskets for pipe flanges ringjoint, spiral wound, and jacketed asme b16. Spiral wound flexitallic thermiculite 835 waranty exclusion in view of the variety of different installation and operation conditions and application and process engineering options, the information given in this datasheet can only provide approximate guidance and cannot be used as basis for warranty claims. Developed for general industrial applications where an high performance asbestos free sheet is desirable. Data specification sheet novus spiral wound gaskets. Pdf metallic gaskets for pipe flanges ringjoint, spiral. This publication is designed to facilitate the specification and ordering of standard flexitallic spiral wound gaskets. The change gasket design combines aspects of both a traditional spiral wound gasket and a kammprofile, improving upon both using reinvented winding wire 5times thicker than traditional spiral. Spiral wound gasket is composed of a steel outer ring, a spiral wound sealing strip filler and a special steel inner ring.
When flexitallic invented the spiral wound gasket in 1912, there was nothing like it. Outer guide ring is fitted to centralise the gasket. Custom filler, winding strip, guide ring and inner ring materials are available upon request. The primary purpose for this development was the increasingly severe temperatures and pressures used. Table of dimensions and tolerances of spiral wound gaskets. Spiral wound gaskets flexitallic equals gasket material. Spiral wound gaskets spiral wound gaskets consist of a vshaped metal strip spirally wound in combination with a soft, filler material. One of the main applications is steam sealing at high pressures or temperatures superheated steam.
Spiral wound gaskets masterpacasia company limited. Acts as compression limiter preventing overloading and over compression of the spiral wound sealing element. Inner ring recommended for all gaskets exceeding class ansi 600lbs. To combat the effects of pressure and temperature fluctuations, flexibility and recovery are essential. Spiral wound gaskets are manufactured by spirally winding a vshaped metal strip and a strip of nonmetallic filler material. The vitaflex spiralwound gasket operates by the axial compression of the winding, which results in the plastic deformation of the filler material ptfe or.
Reliable, safe and costeffective solutions from one single source. The spiral wound gaskets are used to replace the plastic gaskets asbestosfree or graphite when their limits of application are exceeded. Due to this combination of materials the spiral wound gasket. Styles cg and cgi can be compressed to the ring thickness, if necessary.
They are most popular due to this configuration, and are available in a wide variety of styles and sizes. This gasket system also has an inner as well as outer support ring in addition to the wound spiral. The aspcg style uses an 18 external ring which accurately centers the gasket on the flange face and provides additional radial strength to prevent gasket blowout and act as a compression stop. Spiral wound gaskets are available for classes 150 to 2500. Pv 370 is designed as a filler for the spiral wound gasket. Style cg spiral wound gaskets utilize an external ring which accurately centers the gasket on flange. They are available in various designs to suit a wide range of flange applications for power generation, refineries and petrochemical. R, basic type for tongue and grove or male and female or grooved to flat face flanges.
The spz spiral wound gasket can withstand severe operation conditions, as the ptfe sealing zone is protected by areas with graphite filler. Used as a guide for location of gasket between the bolts. Spiral wound gaskets must contain an appropriate filler between the winding for the application. The sealing element is made of alternating plies of a specified metal and soft sealing material. Gasket handbook 1 edition fluid sealing association. Spiral wound gaskets are made of a preformed thin metallic strip combined with a soft sealing composite material, wound together under pressure to energize.
Spiral wound gaskets can be used for sealing flange joints. Spiral wound gaskets, class 150, nps 12 nps 24, asme b16. Learn about spiral wound gasket including dimensions and. The spiral wound gasket element is precision formed using a v shaped. E gasket material intended for use as a sealing material between flanges, can be in the form of sheets or cut gaskets. 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. With a broad spectrum of highquality gaskets ranging from fiber and rubberbased, ptfe types to graphite and metal seals plus the relevant accessories, eagleburgmann can be relied upon to provide the right sealing solution for every application. Asbestos free, compressed, spiral wound metalic gaskets fibre. 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. 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 class 150 dimensions of spiral wound gaskets class 150, asme b16.
Technical catalogue spiral wound gaskets comdiflex. Extraordinary ability to adapt with recovery and flexibility under frequent fluctuations of pressure and temperatures. Dimensions of spiral wound gaskets class 150, asme b16. Spiral wound gaskets swg manufactured by masterpac is the precision. Spiral wound gasket datasheet design application flange surface finish sealing element thickness uncompressed operating temperatures and pressures halo seal spiral wound gaskets comprise a preformed metal strip and a softer filler material, spirally wound together to. The concept of spiral wound gasket construction was originated by flexitallic in 1912, inaugurating the beginning of a new era in safe, effective sealing. Klinger maxiflex maxiflex spiral wound gaskets are available in a range of configurations and materials.
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