This will not damage the gasket or affect the sealing performance and the ring is provided as a compression limiting stop. The style mcs gasket is an exclusive flexitallic design, consisting of a flexitallic spiral wound gasket with an integral solid metal inner ring. Spiral wound gasket dimensional table for flanges according to standard asme b16. Technical catalogue spiral wound gaskets comdiflex. Spiral wound gaskets spiral wound gaskets are made of a preformed thin metallic strip combined with a soft sealing composite material, wound together under pressure to energize the sealing element to act like a spring when compressed between two flange. Used as a guide for location of gasket between the bolts. Dimensions of spiral wound gaskets according to en 15142 for use with din flanges en.
For gaskets with a diameter no superior to 1200 mm the thickness of 4,5 mm is. Spiral wound gasket basic characteristic and styles. Describes a spiral wound gasket with an outer ring, but no inner ring, i. Online you can buy several products, such as from various top brands of india. 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. Flexitallic gasket broad term sometimes used to describe nearly any type of spiral wound gasket. When flexitallic invented the spiral wound gasket in 1912, there was nothing like it. Dimensions spiral wound gaskets according to en 15142 for. Flexseal industrial is a full line gasket and oring distributor. The spiral wound sealing element provides resilience, strength, blowout resistance and superior sealability. Type swio spiral wound gasket with centring ring and inner ring. 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. Klinger spiral wound gaskets pacline valves gaskets. This table gives a list of many commonly used gasket materials and contact facings with suggested design values of m and y that have generally proved satisfactory in actual service when using effective.
Corrugated metal gasket cmg metal jacketed gaskets. We manufacture spiral wound gaskets in sizes from dn. The diameter of a spiral wound gasket may range between a few mm up to 5. Spiral wound gaskets of nonstandard dimensions and shapes, and larger diameters are available on request. Required gasket compression for spiral wound gaskets spiral wound gaskets with internal or external rings, i. The section of the gasket that creates the seal between the flange faces is the spiral wound section, which houses the soft sealing element.
The change gasket design combines aspects of both a traditional spiral wound gasket and a kammprofile, improving upon both using. Inner ring recommended for all gaskets exceeding class ansi 600lbs. We offer superior customer service and are committed to meeting the needs of all. Types of gaskets for flanges soft, spiral, ring joint. Gasket for flange connections with and without sealing strip.
One such design is a thick, extruded wire that is spiral wound and welded to look like a kammprofile. This process of precise winding density control provides a gasket designed to meet your specified seating stress and. Spiral wound gaskets swg selection of gasket thickness spiral wound gasket is standard produced with a thickness of 4,5mm. View all products from flexitallic the market leader in the manufacture and supply of static sealing solutions, delivering high quality industrial gaskets on a global scale. A general distinction can be made between two sealing geometries. Gasket handbook 1st edition fluid sealing association. Spiral wound gasket is usually produced with a thickness 4,8 mm. Spiral wound gaskets lewco specialty products, inc. Spiral wound gaskets are the most commonly used gaskets for raisedface flanges. When looking for a high pressure and high temperature gasket sprial wound gaskets are the industries standard. The standard thickness of the metallic strip is 0,2 mm. Grafit is universally applicable, highquality, asbestosfree material with the following. However, selecting the right gasket for a leakfree seal requires. Pressure class 900, nominal pipe sizes 24 and larger, pressure class 1500 from nominal pipe sizes 12 and larger, pressure class 2500 from nominal pipe sizes 4 and larger and all ptfe filled gaskets.
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. However, in some cases another thickness can be selected to obtain effective sealing. The installer applies a gasket on one flange, mates the two flanges together, and attaches the barrel clamp. For price price list of gaskets spiral wound gaskets pri. The maximum winding width is determined by the component materials, thickness. The vitaflex spiralwound gasket operates by the axial compression of the winding, which results in the plastic deformation of the filler material ptfe or cefigraf on the sealing faces. Spiral wound gasket dimensions are in millimeters unless otherwise indicated. The necessity to seal effective under high pressure and temperature variations, flange rotation and vibrations demands a gasket with adequate stress retention, flexibility and recovery. For all filler materials, inner rings shall be furnished in spiral wound gaskets for. For gaskets with a diameter no superior to 1200 mm the thickness of 4,5 mm is recommended. 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. The design dimensions of the gasket diameters are stipulated by the asme b16.
Spiralwound gaskets open a further dimension for safe and effective sealing. 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. Spiral wound gaskets spiral wound gaskets are made of a preformed thin metallic strip combined with a soft sealing composite material, wound together under pressure to energize the sealing element to act like a spring when compressed between two flange faces. Flexitallic is actually a manufacturer of spiral wound gaskets. The primary purpose for this development was the increasingly severe temperatures and pressures used.
Learn about the 5 key flange gaskets types used in the oil and gas industry. Trim the spiral pipe to the measured length and attach the sleeve. The metal strips optimized profile provides elastic recovery, a vital function. Styles cg and cgi can be compressed to the ring thickness, if necessary. The usual nominal thickness of spiral wound gaskets are between 3,2 mm and 4,5 mm. Although its basic fundamental principle has changed little since its creation, the production techniques and materials that have been developed. Ibc form ibc inner bolt circle, round seal without screw holes. Prolonged trouble free service reduced seat cleaning time to order with all orders or inquiries please submit following.
These, and many more, can also be downloaded as pdf files of nonstandard dimensions and shapes, and larger diameters are available on request. A spiral wound gasket may be ordered in different shapes, such as oblong, rectangular, oval, pear and diamond. The spiral wound gaskets are used to replace the plastic gaskets asbestos free or graphite when their limits of application are exceeded. Table of dimensions and tolerances of spiral wound gaskets. Introducing the spiral wound gasket that reinvents the category. Acts as compression limiter preventing overloading and overcompression of the spiral wound element. The vitaflex and flexseal spiralwound gasket concept can solve a. The outer guide ring carbon steel helps center the gasket within the flange. This standard covers metal ringjoint gaskets, spiral wound gaskets, metaljacketed gaskets, and grooved metal gaskets with covering layers.
Acts as compression limiter preventing overloading and over compression of the spiral wound sealing element. Ensure that a cut gasket is free from burrs or ridges at bolt holes and edges to. According to din en and asme normatives garlock is acknowledged as the global leader in highperformance fluid sealing products, committed to a culture of safety by making the world safer, sustainable and more reliable. They are used in all pressure classes from asme class 150 to class 2500. Standard spiral pipe connector pipe to pipe connections are made by using a fitting size. There are no class 900 flanges in nps 50 and larger. The metal strips optimized profile provides elastic recovery, a vital function in order to maintain sealing on a bolted assembly. Apr 14, 2018 in this article we will discuss the spiral wound gasket basic characteristic and styles. The spiral wound gasket outer centring ring provides the following benefits. Gaskets for pipe flanges which includes spiral wound gaskets and nonmetallic. Image shows a spiral wound gasket with inner and outer ring. Dimensions of spiral wound gaskets according to en 15142 for use with din flanges en 10921 dimensions spiral wound gaskets according to en 15142 for use with flanges din en 10921 explore the world of piping.
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