Slip on weld flange is ideal for connection of steel pipes with nominal pressure less than 2. En standard flange,weld neck flange,plate weld flange,china. Flange dimensions are determined by the pipe size and the pressure class required for the application. There are many common flange standards and flanges within the same standard can etiher be flat commonly cast iron, ductile iron or raised face commonly cast steel and stainless steel. These gaskets are dimensionally suitable for used with flanges described in the reference flange standards asmeansi b16. Standard marking system for valves, fittings, flanges, and unions.
Sizes nps 12 through 312 are same as class 600 flanges. Awwa flange standards awwa flange standards differ from ansi american national standards institute and asme american society of mechanical engineers certifications in a variety of ways, the most important being their specificity. Flange tables flanges are commonly used to connect valves into pipework making it easier for removal and maintenance. Warren electric corporation 36 franklin street, po box 86 warren, rhode island, usa 028850086 tollfree. Technically, the nps is nondimensional and only roughly refers to the diameter of the pipe. Most standards specify the material from which the flange is produced.
Nominal pipe size abbreviated nps is a north american standard for identifying pipe sizes. Plate weld flange is used in fuel and water pipelines. The weakest item in a piping system may be a fitting made of weaker material or rated lower due to design and other considerations. Blind flanges are also used as a manhole cover in the vessel. These dimensions are nominal substantial tolerances apply refer to atlas technote 12 and the standards for details. Some widely used pipe fitting standards are as follows. The purchaser should specify the exact requirements. This standard is a purchase specification for metallic, flat, ringshaped gaskets for use in circular, raisedface, flanged pipe joints as described in ansi b16. There are available flange sizes and grades for all standard pipe wall thicknesses and pressure ratings.
Astm flange standards 120 of 35,836 results 20 results per page 10 results per page 30 results per page 50 results per page 100 results per page. Following is a partiat of l lisagenciehoss we standards have a direct bearing on the design and production of for ged steel valves, fittings, fl anges and unions. However, from nps 14 and above, the nps value matches the outside diameter of the pipe. The typical flange faces used are flat face, raised face, tongue and groove and ring joint. We provide ansi, api, and awwa pipe flanges in carbon steel, stainless steel, alloys. Pipe fitting standards,pipe fitting codes,industrial. Pvc schedule 80 pipe is for pressure applications and has a thicker wall than schedule 40 pipe.
For welding neck and lap joint stub and flange applications. We offer en standard flange, pipe tee, and socket weld elbow. Charlotte pipe and foundry cannot accept responsibility for the performance, dimensional accuracy, or compatibility of pipe, fittings, gaskets, or couplings not manufactured or sold by charlotte pipe and foundry. It is usual industry practice to classify the pipe in accordance with the pressure temperature rating system used for. Ansi flange standards ansiapproved flanges are used for the industrial market which handles gas, air and steam process systems. Lanl engineering standards manual pd342 chapter 17 pressure safety section d20b31. Class 125 and class 250 are cast iron flanges and flanged fittings while class 150 and class 300 are ductile iron, steel or stainless steel. Standard pipe flange dimensions the attached table compares the dimensions of australian, ansi, din and jis standard flange details up to 1200 mm nominal bore. Carbon steel pipe flanges dimensions and weights atlas steels. A wide variety of iso standard flange dimensions options are available to you, such as equal, reducing. This can be attributed firstly to the fact that this part of iso 7005 has not, prior to this revision, been updated and, secondly, that this part of iso 7005 lacked normative requirements for many materials and their corresponding pressuretemperature ratings. An mss standard practice is intended as a basis for common practice by the.
Active standard astm a961 a961m developed by subcommittee. Flange related installation issues standard water pipe flanges are of the flatface also called fullface variety, the flange slips over the end of the pipe and is attached with internal and external fillet welds, see figure 1. There are different standards to describe the steel pipe size, od and wall thickness. Section 5 carbon steel pipe, fittings, and flanges october 2016 page 9 section 5 au carbon steel buttwelding fittings weight buttwelding fittings kg per unit standard weight nominal size od elbows returns caps reducers stub ends long short tees long short mss asme dn nps mm 90 deg 45 deg 90 deg. Pipe flanges are classified in different ways based on pipe attachment, pressuretemperature pt rating, facing, face finish. The design of a flange involves the selection of the gasket material, type, and dimensions, flange facing, bolting, hub proportions, flange width, and flange thickness. Learn different types of pipe flanges used in piping. Ansi flange dimension chart warren electric corporation. Pipe flanges are designed to give you added support, block off piping or enable extra attachments to any pipe in your facility. Each flange standard has limited size ranges and pressure classes.
Pipe tee is used to connect pipelines with a pipe at a right angle with the line. This specification covers a group of common requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications. Based on flange facing types, it can be further classified as. This standard covers materials, dimensions, tolerances, and markings for metal ringjoint gaskets, spiralwound metal gaskets, and metal jacketed gaskets and filler material. The gasket contacts the entire mating faces full face gaskets or the. Pipe schedule chart unit in mm as below, view here for pipe schedule chart in inch. This effective width calculation removes any possible correlation between asme flange calculation methods and flange manufacturers provided m and y. It is highly durable, easy to install and has better sound deadening qualities than pvc and abs foam core pipes. Texas flange has served the petrochemical, process, and waterworks industries for over 3 decades. An astm designation number identifies a unique version of an astm standard. In addition to those listed, flange standards exist for stainless steel, copper and international metric drilling. Standard marking system for valves, fittings, flanges, and.
The piping rating must be governed by the pressuretemperature rating of the weakest pressure containing item in the piping. Steel pipe flange standards china hebei haihao flange factory. It was designed specifically for the manufacture of stainless and alloy pipe fittings and flanges. Bolted flange design according to asme section viii division 1. Pipe inch mm pipe bo d t t g f r h x c holes bolt dia.
Figure 8 presents the scopes of the various standards. Forged flanges steel astm a105n, a181, a350lf2, wpb a234. The standard cf flange available from mdc can be supplied with a certificate of conformance. Although still available in most sizes and pressure ratings, screwed fittings today are used almost exclusively in smaller pipe sizes and. From our founding by an experienced forging insider in the summer of 1986, texas flange has grown to an industry leader you can trust. These types of flanges are used with another type of flange to isolate the piping system or to terminate the piping as an end. Our high quality products are offered at competitive prices, welcome. Carbon steel pipe, fittings and flanges atlas steels. Still, these standards are the most common in this industry. Most commonly used flanges are weld neck flange, slip on flange, blind flange, socket weld flange, threaded flange and lap joint flange rtj flange. Jis flanges find the best stainless steel pipe fittings. Flange dimensions shall be such that the stresses in the flange, calculated in accordance with 27, do not exceed the allowable stresses specified in 28. In reality, the asme rules, including the flange rotation limits in 214, do not allow enough flange rotation for the gasket to be partially in contact.
The steel flange harmonization specified in the previous edition did not achieve the anticipated market acceptance. The american national standards institute ansi is a private, nonprofit organization. Its main function is to administer and coordinate the u. Stainless steel pipe nominal dimensions based on astm a312m and asme b36. There are four common pressure classes within the ansiasme standards listed above. This effective width calculation removes any possible correlation between asme flange calculation methods and flange manufacturers provided m and y values. Home datasheets flange datasheets standard connection flange datasheets flange long weld neck, ansi class 150, asme b16. Anvil pipe fitters handbook 5 gruvlok installation pipe and flange data weld fitting and steel flange data table of contents gruvlok tech. A pipe flange connects piping and components in a piping system by use of bolted connections and gaskets. For more than 165 years, anvil international has provided quality products combined with the latest technology, industry expertise, and superior customer service. Charlotte pipe products are manufactured to the applicable astm standard. Standard practice developed and approved by the manufacturers standardization society of the valve and fittings industry, inc.
Flanges are standardized according publications from organizations like asme, mss, api and others. Procedural and safety standards are issued by ansi. Standard specification for common requirements for steel. Some of the more significant standarde s ar listed under the issuing. Mss and the american society of mechanical engineers asme. We have them in a huge range of materials to suit many applications, including copper, brass, plastic and stainless steel. Below are the flanges based on the pipe attachments. Shengsenyuan is china en standard flange manufacturer. Orifice flanges are not covered by this standard, but all ansi flange tolerances, where applicable, apply to all coastal orifice flange diminisions except the bore. Flange dimensions shall be such that the stresses in the flange, calculated in accordance with 27, do.
This table will assist you identify the gasket you need to seal most standard flanges. It places responsibility for the selection of a flange series with the purchaser. A flange is an external or internal ridge, or rim lip, for strength, as the flange of an iron beam such as an ibeam or a tbeam. Awwa standards evaluate properties that particularly affect potable water use, as opposed to broader industrial flange applications. Pipe and pipe fitting standards, steel pipe, fitting, sunny steel. Flange weights, dimensions and working pressures prochem. Carbon steel pipe nominal dimensions based on astm a106m and asme b36. Box 40443 houston, tx 772400443 11906 fm 529 houston, tx 77041. These are commonly referred to by their pressure rating class. Texas flange flanges steel flanges industrial pipe flanges. Standards usually specify the material from which the flange is produced.
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