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. Ptfe gasket material structured, filled ptfe sheets multidirectionally exp. Institutional video learn more about the solid infrastructure behind quest gasket s line of teadit sealing. Resources to help you determine the right solution for your application. We manufacture spiral wound gaskets in sizes from dn 10 to a diameter of 1200 mm. 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. Sheet type gaskets are not recommended for applications above class 300 due to higher pressures. Scribble it on a virtual napkin, fold it up and drop it right here. Widely used throughout refineries and chemical processing plants, spiral wound gaskets are also effective for power generation, pulp and paper. Metalflex styles 911, 911m, 911t, 914 description teadit metalflex 911 spiral wound gaskets are made of a preformed metallic strip and a soft filler material ptfe or graphite, wound together under pressure. One material used in the sealing element is usually a metal and the other, referred to as a filler, which is a soft nonmetallic material, typically teflon. Materials and gasket styles, which are not commercially available or. 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. Construction style 9 is constructed with a metallic guide ring, metallic winding and a filler element.
Teadit metalflex 911 spiralwound gaskets are made of a preformed metallic strip and a soft filler material ptfe or. The sealing element is formed by winding two materials one for sealing, one for resilience into thin vshaped spirals. For specific application recommendations consult teadit. Styles cg and cgi can be compressed to the ring thickness, if necessary. Teadit has a comprehensive range of cut gaskets with and without metal eyelets, ptfe envelope gaskets, spiralwound gaskets, kammprofile gaskets, made to your specifications. Ptfe tapes braided gland packings carbon graphite packings ptfe packings ptfe aramid packings aramid packings glass packings acrylic packings ramie packings polyimid packings novoloid packings nomex packings preformed packing rings taluft. Spiral wound gasket s style 9m spiral wound gaskets are made of a preformed metal strip and a soft filler wound together under pressure. Except for weld ring gaskets, high loads are required to. Spiral wound gasket with outer ring and inner ring.
What sealability do you get with a standard asme b16. Inner rings should be used with spiral wound gaskets on maleandfemale flanges, such as those found in heatexchanger, shell, channel, and coverflange joints. Advancements in gaskets for hf acid alkylation by david clover, advanced sealing and supply company david reeves, chevron usa. Spiral wound gaskets spiral wound gaskets are designed for asme b16. Existing north america market conditions were carefully taken into consideration. Spiral wound gaskets are available for classes 150 to 2500. Spiral wound gasket compressibility and pressure ratings. Spiralwound gaskets have been especially designed for this. 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. We are able to offer a consistent quality of service based on many years experience, giving you the most cost effective efficient and environmentally friendly seals. The metal strip holds the filler, resulting in excellent mechanical resistance, resilience and recovery. A skived ptfe gasket presents a fragile behavior when compressed by the fins of the heat exchanger. Chlorine institute pamphlet 95 gaskets for chlorine service. Spiral wound gaskets are made of a preformed metallic strip and a soft filler material ptfe or graphite, wound together under pressure, and optionally with an inner andor outer guide ring.
Teadit engineering catalog draco mechanical supply. The sealing element is made of alternating plies of a specified metal and soft sealing material. The simple flat gasket cut from sheet material remains the most widely used method of flange sealing. However, from a sealing technology point of view, at diameters above 1100 mm is recommended the use of grooved gaskets. These plots were derived from 1995 rott test data, shown in table 1 on page performed on a random 8, sample of two spiral wound gaskets averaged for each of the indicated pressure classes for each manufacturer. Teadit tf 1590 is a structured ptfe gasket sheet manufactured by a unique process which provides a high level of fibrillation to overcome the creep relaxation and cold flow problems associated with normal skived or moulded ptfe sheets. Tous les catalogues et fiches techniques pdf teadit.
The first thing that must be determined is what type of ptfe gasket material your looking for. Spiral wound gaskets have been especially designed for this. Spiral wound gaskets spiral wound gaskets open a further dimension for safe and effective sealing. We offer superior customer service and are committed to meeting the needs of all your industrial sealing applications. This will not damage the gasket or affect the sealing performance and the ring is provided as a compression limiting stop. Quest gasket sealing and fastener edmonton alberta canada. Spiral wound gaskets are manufactured by spirally winding a vshaped metal strip and a strip of nonmetallic filler material. Find out how teadit provided two unique solutions for. Spiralwound gaskets are metallic gaskets consisting of an outer centering ring also known as ocr, or an outer guide ring, metallic windings with a soft filler material, and a. Metalwound gasket designed to deliver a seal with the most dynamic recovery, with graphite filler. Spiral wound styles 911, 911m, 911t, 914 all seals. Ptfe gaskets ptfe sheet gasket material comes in several forms. View pdf spiral wound gaskets with pv370 comparative testing of a micagraphite based material to be used as a filler.
Suggested torque values for use with teadit 905 metalbest. Cut gaskets from all teadit sheets available, manufactured according to all established engineering standards, custommade products ptfe envelope gaskets doublejacketed gaskets manhole gaskets and lid seals spiral wound gaskets kammprofile gaskets. Flexseal industrial is a full line gasket and oring distributor. Required gasket compression for spiral wound gaskets spiral wound gaskets with internal or external rings, i. Teadit spiral wound gaskets have been designed to meet these demanding requirements. With plants and operations worldwide, the teadit group serves industrial fluid sealing requirements. A spiral wound gaskets is categorized as semimetallic gasket that is typically used for high pressure applications. Teadit cd le spiral wound gasket 040820 2 slideshare. The spiral wound gaskets are used to replace the plastic gaskets asbestosfree or graphite when their limits of application are exceeded. 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. The teaditchevron study cited earlier shows that not. Quest gasket sealing and fastener, edmonton, calgary, alberta, canada, ags, teflon, waterjet. Teadit tf1590 is produced from virgin ptfe resin filled with silica.
Resiliency and strength make spiral wound gaskets an ideal choice under a variety of conditions and applications. The first and most common form is a virgin ptfe gasket material. Teadit metalflex 911 spiralwound gaskets from teadit n. Spiral wound gaskets teadit pdf catalogs technical. These gaskets can be fabricated in a variety of shapes and sizes recommended for use in high pressuretemperature applications. Virgin ptfe is specified for medical or electrical applications. Teadit metalflex 914 spiral wound gaskets are used in boiler handholes and manholes. Spiralwound gaskets spiralwound gaskets open a further dimension for safe and effective sealing. Learn about spiral wound gasket including dimensions and.
Spiral wound gasket dimensions were used for the flange stress analysis. Spiral wound gaskets, flexpro gaskets grooved metal gasket with covering layers, metal jacketed gaskets, mrgs metal reinforced gaskets. When the gasket is seated, the filler flows, filling in the imperfections of the flanges. Specifications are subject to change without notice. Not suitable for flange materials with elongation at failure less than 20%.
The addition of solid metal inner rings is recommended for some applications to avoid crushing or pinching on the gasket id. Custom filler, winding strip, guide ring and inner ring materials are available upon request. Spiralwound gaskets are made of a preformed metallic strip and a soft filler material ptfe or graphite, wound together under pressure, and optionally with an. For applications with high temperature variations thermal cycling, andor pressure variations, andor flange rotation problems etc. Users of chlorine gaskets are strongly encouraged to become familiar with chlorine institute pamphlet 95 gaskets for chlorine service. A method of manufacturing a spiralwound ptfe gasket includes winding a laminated ptfe tape 300 around a shaft 305 that has an outer diameter that coincides with the gasket inner dia spiralwound ptfe gasket and methods of manufacture teadit n. Teadit spiralwound gaskets have been designed to meet these demanding requirements. Also, ringjoint groove dimensions were not included, because they were included in asme ansi b16. Camandgroove gaskets provide a tight seal between couplings in lowpressure fluid applications such as regulators and pumps. See inward buckling of flexible graphite filled spiral wound gaskets for piping flanges, 1996, rod mueller. Spiralwound gaskets are made of a preformed metallic strip and a soft filler material ptfe or graphite, wound together under pressure, and optionally with an inner andor outer guide ring. Were tested spiral wound gaskets teadit style 9 manufactured with the filler materials defined in item 3, dimensions per asme b16. Ring gaskets are used with plumbing fixtures to create tight seals in plumbing repair, maintenance, or installation jobs. Failure to select proper sealing products could result in property damage andor serious personal injury.
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