The Expansion Joint Manufacturers Association is an organization of a
metal bellows expansion joint
manufacturers
Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of secondary sector of the economy. The term may refer to a range ...
. It was founded in 1955 to create and maintain a set of standards for quality
expansion joint
An expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials, and vibration, or to allow movement due to ground settlement or seis ...
design and
manufacturing
Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of secondary sector of the economy. The term may refer to a r ...
. The EJMA standards are used worldwide as a reference for the proper selection and application of metallic bellows expansion joints. The standards are a combination of a variety of expansion joint manufacturers' knowledge and experience.
The EJMA organization performs extensive technical research on a variety of topics concerning the design and manufacturing of expansion joints. This knowledge contributes to providing new versions of the EJMA book of standards.
Members
The current members that are a part of the Expansion Joint Manufacturers Association include:
*AEROSUN-TOLA Expansion Joint Co. Ltd.
*
American BOA, Inc.
*Badger Industries, Inc.
*EagleBurgmann EJS
*Flexider
*Hyspan Precision Products, Inc.
*Idrosapiens S.r.l.
*KE-Burgmann EJS
*MACOGA, S.A
*Microflex, Inc.
*Senior Flexonics Pathway
*SFZ, S.A.
*Teddington Engineered Solutions Ltd.
*
US Bellows
US Bellows is a manufacturer of metal bellows
Metal bellows are elastic vessels that can be compressed when pressure is applied to the outside of the vessel, or extended under vacuum. When the pressure or vacuum is released, the bellows will retu ...
, Inc.
U.S. Bellows: About Us
U.S. Bellows, Inc. (retrieved 31 August 2010)
*WahlcoMetroflex, Inc.
*Witzenmann GmbH
*UnisonHKR Co., Ltd. (South Korea) - https://www.unisonhkr.co.kr:40012/
*Teadit Juntas Ltda.
References
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External links
Official EJMA Site
* Metal Expansion Joint Pressure Thrust – http://oakridgebellows.com/metal-expansion-joints/metal-expansion-joints-in-one-minute/part-2-pressure-thrust (1 minute)
*Metal Expansion Joint Anchors and Guides - http://oakridgebellows.com/metal-expansion-joints/metal-expansion-joints-in-one-minute/part-3-anchors-guides (1 minute)
See also
* Expansion joint
An expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials, and vibration, or to allow movement due to ground settlement or seis ...
Organizations established in 1955
1955 establishments in the United States