Nasme flange standards pdf

Consult relevant manufacturers data for information on its products. Grey cast iron copper alloy cast and forged steel pn 6 120 90 4 m12 14 70 2 16 pn 10 140 100 4 m16 18 78 2 18 pn 16 140 100 4 m16 18 78 2 18 8 18 pn 25 140 100 4 m16 18 78 2 20 9 18. This standard is a collection of the piping material data sheets mds applicable to. Mss flange standards start with an sp followed by a number. Nasme 1a, category d nonmetallic requirements for piping not associated with pressure vessel, boilers, or air receivers. Iso flanges are made from argon oxygen decarburization aod 304 stainless steel. 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. Awwa standards evaluate properties that particularly affect potable water use, as opposed to broader industrial flange applications. Mss standards mss flange standards were adopted by american national standards institute.

Various national standards bodies have incorporated this. Figure 8 presents the scopes of the various standards. For precise data, particularly on flange thickness, refer to relevant standard. Hydraulic fluid power dimensions and identification code for mounting flanges and shaft ends of displacement pumps and motors part 1. This flange information does not necessarily apply to valves and other pipeline equipment which are often designed and manufactured to accommodate multiple flange standards. Mostrecent revision only 35,836 not false 0 publisher.

Each flange standard has limited size ranges and pressure classes. These flange fittings are generally used in vacuum components in the low and medium vacuum range and can be found on a variety of laboratory, production and test equipment. In addition to the listed vacuum flanges there are numerous other flange standards which are used, for example, in industrial and process engineering, but are not as widespread in vacuum technology. They do not apply retroactively forcing changes to existing sscs that are not being touched.

Iso flanges conform to the vacuum flange standards issued by the international standards organization iso. The sight glasses are available as per din standard ansi on request, with. Unplasticized polyvinyl chloride pvc pressures pipes metric series dimensions of adapter for backing flange 95. Ms british standard flanges, ms american standard flanges, ms din standard flanges, gi british standard flanges, ss british standard flanges, ss american standard flanges, ss din standard flanges, flanges table d, flanges table e, flanges table f, flanges table h, asa 150, asa 300, asa 600, nd 10, nd 16, nd 40. Often, their surfaces are rough and designed for flat seals. Asmeansi flanges are commonly used in industrial process systems handling water, steam, air and gas. Api flanges are manufactured for high strength operating refinery systems with products such as oil and explosive gases. Horizontal or vertical installation, flange connection. All sizes and grades compatible to standard pipe ranges and wall thicknesses pressure ratings are available. Each flange face is counterbored or grooved to receive a metal centering ring with an elastomeric oring around its o.

Flange table ansi bs 10 nominal size 25mm 1 in bs 4504 diameter of flange bolt circle number number of bolts diameter of bolts diameter of holes diameter of raised face height of raised face thickness of flange. Bolt specifications for standard ansi flanges cont. Mss sp60 is the standard for connecting flange joint. 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 filters. Flange pressure class rating psi nominal size range inches asmeansi b16. 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. A flange standard lays down the dimensions, surface finish, facing type, marking, material and technical specifications for flanges. Each forging is marked with manufacturers name, heat number or heat identification, designation of. Coastal flange stocks import and domestic ansi b16. From critical applications demanding robustness and precision to common plumbing and hardware, these threads are used everywhere in the united states and abroad.

Class 300, class 400, class 600, class 900, class 1500. The purchaser should specify the exact requirements. Iso flanges also called large iso have a sexless design and are made from 304l stainless or aluminum the design principles of iso and kf seals are identical. Standard connection flange standards asme standards.

Ansi standard flange dimensions are designated as 150, 300, 400, 600, 900, 1500, and 2500, in sizes nps 12 through nps 24. Steel pipe flange standards china hebei haihao flange factory. The six common types of ansi class flanges, including. Grey cast iron copper alloy cast and forged steel pn 6 120 90 4 m12 14 70 2 16. The design principles of iso and kf seals are identical. They share the same underlying principle as the qf kf or nw flange series in that two smoothfaced sexless flanges clamp together with a sealing device between them. These gaskets are dimensionally suitable for use with flanges described in. From these class ratings, several requirements, such as pressuretemperature rating, bolt and nut dimensions, coating material and several other factors, make up the standards according to the flange characteristics.

Size range dn as in din en 10921 2512 tongue and groove. Lanlengineering standards manual std 342 100 chapter 17, pressure safety section nasme new nonasme system requirements rev. Aalco service centres operate a quality manual designed to iso90012008. Plastics pipes and fittings peel decohesion test for polyethylene pe electrofusion assemblies of nominal outside diameter greater than or equal to 90 mm. Flange couplings types and operating description properties of flange couplings. This specification covers the material and dimensional requirements applicable to lap joint flange pipe ends that are manufactured by a mechanical forming process, and are widely used for lowpressure systems in the marine, process piping, and similar industries. Lanl engineering standards manual std 342 100 chapter 17.

Iso flanges also called large iso have a sexless design and are made from 304l stainless or aluminum. National flange standards in europe have largely been superseded by the european en 1092 series. In addition to those listed, flange standards exist for stainless steel, copper and international metric drilling. Ansi delivers flange standards to consumers related to pressure in pounds per second per inch psi, according to the size of the flange. Engineering standards manual std 342 100 chapter 17, pressure safety section nasme new nonasme system requirement. All pipe plugs must be blocked or anchored adequately against a force equal to the head pressure times the crosssectional area of the pipe. Ms british standard flanges, ms american standard flanges, ms din standard flanges, gi british standard flanges, ss british standard flanges, ss american standard flanges, ss din standard flanges, flanges table d, flanges table e, flanges table f, flanges table. When a fitting has more than one asa flange, such as a fourway cross, indicate. Certified standards of ansi flanges provide a wide variety of flanges with dimensions ranging from. Flange comparison table standard dimensions mm nb mm name rating od pcd bolts dia. Aug 06, 2014 ansi delivers flange standards to consumers related to pressure in pounds per second per inch psi, according to the size of the flange. Several vacuum flange standards exist with differences in ultimate attainable pressure, size, and ease of attachment.

Plastics pipes and fittings peel decohesion test for polyethylene pe electrofusion assemblies of nominal outside diameter greater than or equal to 90 mm amendment 1. The esm defines the minimum technical requirements for the design, fabrication, construction, commissioning, repair, and replacement of both new and existing systems, structures, and components sscs, including both maintenance and modification, for programmatic and facility work. Standard specification for lap joint flange pipe end. This standard covers minimum requirements for class 150 and 300 cast ductile iron pipe flanges and flanged fittings. Vacuum flanges several vacuum flange standards exist with. An example would be adapter flange model number asa6338200zg. The american national standards institute ansi code for flanges and flanged fittings ansi b16. Never use an inflatable plug when its failure could cause injury or catastrophic damage or as the only means of protection for personnel working downstream. Nps 12 through nps 24 metricinch standard covers pressuretemperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings.

Flanges to msssp44 shall have a maximum wall thickness under tolerance of 0,3 mm for the. 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. Experience in using the standard showed the need for hub dimensions of companion flanges and for other changes, including rerating of 250lb and 1,350lb flanges and development of flanged fittings with integral bases. These threads are used everywhere in the united states and abroad. 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.

The pressure and size may differ depending on whether the flange is welded, threaded or bolted to a pipe. Each flange face is counterbored or grooved to receive a metal centering. 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. Both materials may also influence which class your flange is placed into. This material is certified to meet astm240 and has less than 0. The same rule applies when ordering a fit ting or adapter flange with only one asa flange.

Mss sp44 is the standard for steel pipeline flanges. Flange tables flanges are commonly used to connect valves into pipework making it easier for removal and maintenance. Standards organization specification so they can be mated to other manufactur ers iso flanges. The difference between asmeansi and api is the fabrication material and a higher rated api operating pressure.

Flange dimensions shall be such that the stresses in the flange, calculated in accordance with 27, do. It comprises flanges with din origin and pndn designations dn classification being dependent on pn. Most standards specify the material from which the flange is produced. Still, these standards are the most common in this industry. Information on flanges din 26312638, din25732576, din2527, din26412642, din25652566, din2502. Regardless of size or specification, flanges are fundamentally designed to close, cover, connect, or support pipe systems.