Covers types, sizes, materials, dimensions, tolerances, and markings for nonmetallic flat gaskets. Spiral wound gaskets are available for classes 150 to 2500. These gaskets are dimensionally suitable for use with flanges described in reference flange standards asme b16. Standard thicknesses are 116 and 18, but others are available. Dimensions for 300lbs nps nominal pipe size filler o. Inner rings are recommended for all graphite filled gaskets, required for all ptfe filled gaskets. The specification is very clear about the method of construction, finished product dimensions as well as the required markings on the gaskets. Lubricate on bolt threads and nut faces with compatible antiseize. 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.
Edmonton, b 8700 v 7803989 27 spiral wound gaskets spiral wound gaskets are designed for asme b16. Lamons is licensed by the american petroleum institute. Asme, approval by ansi was given on january 22, 1993, with the designation asme b16. Spiral wound gaskets have widespread use in the process industry, with adequate results in both piping and equipment applications. Please speak to the applications engineering department for further. Sep 21, 2017 gaskets metallic ones for the pipe flanges are discussed in this episode via the tour of asme b16. Com page 2 of 4 elastomeric ring gaskets on asme b16. Applicability of hastelloy c276uns n10276 plate in asme code. Style rx, a pressureenergized adaptation of the standard style r ringjoint gasket. One of the significant changes is the introduction of maximum permissible leakage rate. Metallic gaskets for pipe flanges ringjoint, spiralwound, and jacketed asme b16. Table of dimensions and tolerances of spiral wound gaskets. Ring joint gaskets lamons manufactures and supplies a large variety of ring joint gaskets.
Suggested torque values for use with teadit 905 metalbest. These dimensions are in millimeters unless otherwise indicated. We offer a qualitative range of various types of gaskets, sizes, standards, outside diameter, inside diameter, sealing element. In addition, the following higher pressure class spirals will be supplied with inner rings for all filler material. This standard covers materials, dimensions, tolerances, and markings for metal ringjoint gaskets, spiralwound metal gaskets, metaljacketed gaskets, and grooved metal gaskets with covering layers. The asme b16 standardization of valves flanges, fittings and gaskets committee, which operates under asme s board on pressure technology codes and standards is responsible for standards covering valves, flanges, pipe fittings, gaskets and. Delmar company offers a wide range of metallic gaskets that meet asme b16. This standard covers materials, dimensions, tolerances, and markings for metal ringjoint gaskets, spiralwound metal gaskets, and metal jacketed gaskets and filler material. Nonmetallic gasket dimensions and tolerances in accordance with asme b16. R type ring joint gaskets are available in oval or octagonal crosssection and manufactured according to api 6a and asme b16. Associations asa organized sectional committee b16 to unify and further develop standards for pipe flanges and fittings and later for valves and gaskets.
These gaskets are dimensionally suitable for use with flanges described in the referenced flange standards. These gaskets are dimensionally suitable for used with flanges described in the reference flange standards asmeansi b16. While based on data believed to be reliable, seller assumes no responsibility. Table 4 gasket dimensions for asme b 16 5 class 150 pipe.
Assuming new, noncoated and well lubricated bolts and nuts are used with throughhardened washers. For gaskets larger than nps12, select standard id or gls id as appropriate. Alloy 276 is a nickelmolybdenumchromiumirontungsten alloy which is among the read more. Hastelloy c276 spiral wound gaskets,n10276 gasket, asme b16. Use correct size, new, bolts studs, nuts, washers multiply torques by 0. Metal jacketed gaskets are commonly used with flanges with asme b16. Metallic and nonmetallic gaskets for pipe flanges asme. These gaskets are dimensionallysuitable for use with flanges described in referenceflange standards asme b16. Dec 01, 2016 this paper discusses each of the requirements in asme b16. Dimensions of spiral wound gaskets class 150, asme b16. Cosponsors of the b16 committee were asme, the heat ing and piping contractors nat ional associat ion now mechanical.
Metallic gaskets for pipe flanges ringjoint, spiralwound. The api 6a standard covers both flanges and matching gaskets, which can be divided into three distinct groups. This type of rtj gasket is machined to tight manufacturing tolerances to ensure correct installation with standard asme b16. Kammprofile gaskets in june 2012 grooved metal gaskets with covering layers kammprofiles were added to asme b16. B16 standardization of valves, flanges, fittings, and gaskets. Pdf metallic gaskets for pipe flanges ringjoint, spiral. Metallic gaskets for piping withdrawn replaced by asme b16. Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations. Moreover, our gaskets find extensive application in oil refineries power plants, petro chemical industries and marine fertilizer industries. This type of gasket is designed to be used in rtj groove flanges and are produced under license to dimensions as per api6a and asme b16.
This marks a landmark introduction of an actual leakage performance criterion into asme b16. Please note that gaskets for nonstandard flanges are also readily available. It addresses gaskets that are dimensionally suitable for use with flanges described in reference flange standards asme b16. Click here to purchase the full version from the ansi store. Types of gaskets for flanges soft, spiral, ring joint. Wound gaskets can be manufactured in accordance with all relevant gasket standards to suit the following flange designations. Dimensions and tolerances of ring joint gaskets type r asme. The rtj standard size gaskets are manufactured in accordance to api6a and asme b16.
Ring type joint gaskets are precision machined metallic gaskets generally used in high pressure applications such as the oil, gas, petrochemical and offshore industries. This paper will also include other items not mentioned in asme b16. The gasket material ideally needs to be less than the flange material to ensure sufficient. Dec 29, 2017 this standard covers materials, dimensions, tolerances,and markings for metal ringjoint gaskets, spiralwoundmetal gaskets, metaljacketed gaskets, and grooved metalgaskets with covering layers. Class 900 nps 24 to 48 class 1500 nps 12 to nps 24 class 2500 nps 4 to nps 12. Metallic and nonmetallic gaskets for pipe flanges standards for engineers worldwide asme b16. Custom filler, winding strip, guide ring and inner ring materials are available upon request. Dimensions are in millimeters, except for hole diameter dimensions, which are in inches. If no inner ring is used, gasket may buckle on the id.
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