Ejma expansion joint pdf files

Ejma the expansion joint manufacturers association, inc. Ejma standards pdf documents similar to ejma 9th standards of expansion joint manufacturers association 9h. The industry has kept abreast of the technological advances in rubber compounding and synthetic fabrics to provide rubber expansion joints. In 1974, asme rekindled a 1966 effort to develop design rules and performance equations covering expansion joints. The expansion joint manufacturers association ejma, the authority on metal expansion joints, has revised the standards in the latest 10th edition ejma standards are recognized throughout the world as the authority on the proper selection and application of metallic bellows type expansion joints for safe and reliable piping and vessel installation. The gimbal expansion joint is obtained by adding a pair of pins hinges to the based angular version that allow it to steer in all directions. These referenced documents shall, to the extent specified herein, form a part of this standard. In this presentation we do not show the detailed analysis. It is based upon the method found in ejma expansion joint manufacturers association. Ihs markit is your source for ejma standards and publications. Hyspan expansion joints, expansion joint technical. These standards combine the knowledge and experience of the associations technical committee and are available to assist users, designers, and others in the selection and application of expansion joints.

Ejma carries out extensive technical research and testing on many euma aspects of expansion joint design and manufacturing. In addition, ejma states, also, as an expansion joint is rotated or deflected laterally it should be noted that one side of the bellows attains a larger projected area than the opposite side. The expansion joint manufacturers association is an organization of established manufacturers of metal bellows type expansion joints. Ejma which types of expansion joints have this problem. Metal expansion joints and connectors, rubber expansion joints, te. Ejmastandards expansion joint manufacturers association. The ejma standards are recognized throughout the world as the authority on the proper selection and application of metallic bellows type. This expansion joint provides angular movement on two perpendicular planes.

Ejma expansion joint manufacturers associaton member u. Expansion joint manufacturers association wikipedia. The authority on expansion joints the ejma standards are recognized throughout the world as the authority on the proper selection and application of metallic bellows type expansion joints. These tests and control procedures include recognized standard tests according to din norms etc. Numerous researchers have conducted studies on bellows expansion joints with the help of standards such as asme and ejma. Receive a free copy of a practical guide to expansion joints with each printed copy of the tenth edition, you will receive ejma s practical guide to expansion joints, a pocket size primer based on ejma standards. The authority on expansion joints the ejma standards are recognized throughout the world as the authority on the proper selection and application of metallic bellows type expansion joints for safe and reliable piping and vessel installation. They are a highly engineered product that needs to conform to one of the industry codes such as ejma. Design and thermal analysis of thermal expansion joint in industrial application. The expansion joint manufacturers association is an organization of a metal bellows expansion joint manufacturers.

The bellows are sized in accordance with the calculation model e. Ejma standards pdf free download download d77fe87ee0 download ejma the expansion joint manufacturers association standards 2008. It is essential that the weld in the bellows be as strong as the surrounding material. Ejma the expansion joint manufacturers association. Ejma is an organization of the leading international manufacturers of metal bellows expansion joints. The discussion in pengs book assumes using an ej to solve the equipment load problem due to piping thermal expansion. Fmh expansion joints design of bellowsdesign of bellows. These standards combine the knowledge and experience of the associations technical committee and are available to assist users, designers, and others in the selection and application of expansion joints for safe and reliable piping and vessel. This catalog outlines the selection and installation of our metal bellows. Prior to 1988, coverage of metallic bellows expansion joints in asme b31. Metallic expansion joints are installed in piping systems to absorb differential thermal expansion and vibration whilst containing the system pressure. Can someone please provide me this standard 9th or 8th edition as well. These computer programs help determine engineering.

The expansion joint manufacturers association, inc. Asme section viii division 1 appendix 26 june 2004 addenda. The highly skilled staff at triad bellows designs metal bellows and expansion joint. The ejma standards are used worldwide as a reference for the proper selection and application of metallic bellows expansion joints. We are able to manufacture bellows from 2 nd to 144 nd as our. The expansion joint manufacturers association ejma, the authority on metal expansion joints, has revised the standards in the latest 10th edition ejma standards are recognized throughout the world as the authority on the proper selection and application of metallic bellows type expansion joints. In the case of an exchanger the thin joint held in alignment. Ejmathe expansion joint manufacturers association, inc.

Expansion joint manufacturers association, materials degradation and corrosion 16 post s. It was founded in 1955 to create and maintain a set of standards for quality expansion joint design and manufacturing. Includes one copy of practical guide to expansion joints. It is calculated as either lb or lu plus length of pipe ends. Ejma was founded in 1955 to establish and maintain quality design and manufacturing standards.

Each expansion joint produced by witzenmann can be designed and. Under the action of the applied pressure, unbalanced forces are set up which tend to distort the expansion joint. The organization is dedicated to the advancement of expansion joints. Peng criticism is addressed to the fact the anchor is so important in the application of bellow expansion joints that many engineers seem to automatically place an anchor or anchors in an expansion joint. The wtandards resistance factor or working spring rate is shown in lbs per inch of lateral offset. Ejmaexpansion joint manufacturers association global ihs. Standards of the expansion joint manufacturers association, inc. It is well known that large span piping systems containing bellows expansion joints must be correctly guided and supported ejma. Good morning friends, i was looking for ejma 9th edition standard. Bellows were required to be designed in accordance with the rules for pressure design of unlisted components par. This ebook can only be opened on 1 device and no printing or copying of the content is.

The guide is intended to provide users with a basic understanding of expansion joints. Refer to the figures below for orientation and ejma for. The authority on expansion joints the ejma standards receive a free copy of a practical guide to expansion joints with each printed. Papers presented at aspect 90, a conference organized by the society for underwater technology and held in aberdeen, scotland. Ejma benchmark calculations free download as pdf file. Ejma the expansion joint manufacturers association standards 2008 ejma expansion joint manufacturers association download bok. You can also find technical information as a pdf download. Both the ejma standards and most reliable pipe expansion joint manufacturers catalogs provide numerous examples to assist the user in this effort. Dear friends do anybody have a practical guide to expansion joints. Ejma hand calculations x caesar ii intergraph cadworx. Comflex metallic expansion joints engineering guide. Designing with expansion joints 8 pressure thrust for a bellows type expansion joint, the pressure.