Standard practice developed and approved by the manufacturers standardization society of the valve and fittings industry, inc. En standard flange,weld neck flange,plate weld flange,china. We offer en standard flange, pipe tee, and socket weld elbow. Some widely used pipe fitting standards are as follows. Flange weights, dimensions and working pressures prochem. Most standards specify the material from which the flange is produced. Lanl engineering standards manual pd342 chapter 17 pressure safety section d20b31.
An astm designation number identifies a unique version of an astm standard. 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 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. Carbon steel pipe, fittings and flanges atlas steels. Sizes nps 12 through 312 are same as class 600 flanges. Standard marking system for valves, fittings, flanges, and unions. Pipe fitting standards,pipe fitting codes,industrial. Based on flange facing types, it can be further classified as.
Shengsenyuan is china en standard flange manufacturer. Plate weld flange is used in fuel and water pipelines. Below are the flanges based on the pipe attachments. A pipe flange connects piping and components in a piping system by use of bolted connections and gaskets. 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. 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. Texas flange has served the petrochemical, process, and waterworks industries for over 3 decades. The standard cf flange available from mdc can be supplied with a certificate of conformance. Standard marking system for valves, fittings, flanges, and. Our high quality products are offered at competitive prices, welcome. This standard is a purchase specification for metallic, flat, ringshaped gaskets for use in circular, raisedface, flanged pipe joints as described in ansi b16. This specification covers a group of common requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications. For more than 165 years, anvil international has provided quality products combined with the latest technology, industry expertise, and superior customer service.
It is usual industry practice to classify the pipe in accordance with the pressure temperature rating system used for. Pipe flanges are designed to give you added support, block off piping or enable extra attachments to any pipe in your facility. Steel pipe flange standards china hebei haihao flange factory. Anvil pipe fitters handbook 5 gruvlok installation pipe and flange data weld fitting and steel flange data table of contents gruvlok tech. Bolted flange design according to asme section viii division 1.
Nominal pipe size abbreviated nps is a north american standard for identifying pipe sizes. 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. Flanges are standardized according publications from organizations like asme, mss, api and others. A wide variety of iso standard flange dimensions options are available to you, such as equal, reducing. Stainless steel pipe nominal dimensions based on astm a312m and asme b36. Standard specification for common requirements for steel. Ansi flange dimension chart warren electric corporation. Charlotte pipe products are manufactured to the applicable astm standard. 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. For welding neck and lap joint stub and flange applications. Blind flanges are also used as a manhole cover in the vessel. Carbon steel pipe nominal dimensions based on astm a106m and asme b36.
These are commonly referred to by their pressure rating class. It was designed specifically for the manufacture of stainless and alloy pipe fittings and flanges. This table will assist you identify the gasket you need to seal most standard flanges. 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 tables flanges are commonly used to connect valves into pipework making it easier for removal and maintenance. The purchaser should specify the exact requirements. It is highly durable, easy to install and has better sound deadening qualities than pvc and abs foam core pipes. 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. 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. Texas flange flanges steel flanges industrial pipe flanges. Procedural and safety standards are issued by ansi. Although still available in most sizes and pressure ratings, screwed fittings today are used almost exclusively in smaller pipe sizes and.
Flange dimensions shall be such that the stresses in the flange, calculated in accordance with 27, do. An mss standard practice is intended as a basis for common practice by the. It is highly durable, easy to install and has better sound deadening. Most commonly used flanges are weld neck flange, slip on flange, blind flange, socket weld flange, threaded flange and lap joint flange rtj flange. Awwa standards evaluate properties that particularly affect potable water use, as opposed to broader industrial flange applications. We have them in a huge range of materials to suit many applications, including copper, brass, plastic and stainless steel. Its main function is to administer and coordinate the u. However, from nps 14 and above, the nps value matches the outside diameter of the pipe. Still, these standards are the most common in this industry. 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. Technically, the nps is nondimensional and only roughly refers to the diameter of the pipe. All sizes and grades compatible to standard pipe ranges and wall thicknesses pressure ratings are available. Some of the more significant standarde s ar listed under the issuing. Jis flanges find the best stainless steel pipe fittings.
The weakest item in a piping system may be a fitting made of weaker material or rated lower due to design and other considerations. 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. There are four common pressure classes within the ansiasme standards listed above. This standard covers materials, dimensions, tolerances, and markings for metal ringjoint gaskets, spiralwound metal gaskets, and metal jacketed gaskets and filler material. Learn different types of pipe flanges used in piping. Slip on weld flange is ideal for connection of steel pipes with nominal pressure less than 2. These types of flanges are used with another type of flange to isolate the piping system or to terminate the piping as an end. 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. This effective width calculation removes any possible correlation between asme flange calculation methods and flange manufacturers provided m and y values.
Active standard astm a961 a961m developed by subcommittee. Each flange standard has limited size ranges and pressure classes. The gasket contacts the entire mating faces full face gaskets or the. 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. Warren electric corporation 36 franklin street, po box 86 warren, rhode island, usa 028850086 tollfree. Flange dimensions are determined by the pipe size and the pressure class required for the application. Box 40443 houston, tx 772400443 11906 fm 529 houston, tx 77041. In addition to those listed, flange standards exist for stainless steel, copper and international metric drilling.
The piping rating must be governed by the pressuretemperature rating of the weakest pressure containing item in the piping. The typical flange faces used are flat face, raised face, tongue and groove and ring joint. Ansi flange standards ansiapproved flanges are used for the industrial market which handles gas, air and steam process systems. Pipe tee is used to connect pipelines with a pipe at a right angle with the line. These dimensions are nominal substantial tolerances apply refer to atlas technote 12 and the standards for details. 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. Standards usually specify the material from which the flange is produced. There are different standards to describe the steel pipe size, od and wall thickness. Pvc schedule 80 pipe is for pressure applications and has a thicker wall than schedule 40 pipe. It places responsibility for the selection of a flange series with the purchaser.
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. Figure 8 presents the scopes of the various standards. There are available flange sizes and grades for all standard pipe wall thicknesses and pressure ratings. Home datasheets flange datasheets standard connection flange datasheets flange long weld neck, ansi class 150, asme b16. The american national standards institute ansi is a private, nonprofit organization. These gaskets are dimensionally suitable for used with flanges described in the reference flange standards asmeansi b16. Carbon steel pipe flanges dimensions and weights atlas steels.
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. From our founding by an experienced forging insider in the summer of 1986, texas flange has grown to an industry leader you can trust. Pipe flanges are classified in different ways based on pipe attachment, pressuretemperature pt rating, facing, face finish. Mss and the american society of mechanical engineers asme. Forged flanges steel astm a105n, a181, a350lf2, wpb a234. Pipe and pipe fitting standards, steel pipe, fitting, sunny steel. Pipe inch mm pipe bo d t t g f r h x c holes bolt dia.