EJMA standard Universal Hinge Bellows Expansion Joint

Hinge Expansion Joint

[Structural Features]

Working principles of universal hinged type expansion joints are almost the same as that of simplex hinged bellow expansion joints. Universal hinged type expansion joints consist of one bellow and hinge plates connected with four groups of end pipes and gimbal ring, and flexibility components made of two pairs of hinge pins. The hinge plates face to face and they are perpendicular to the gimbal ring so it can absorb angular movements in any plane. Just as simplex hinged bellow expansion joints, SWJ don’t work alone but usually two or three of them are combined together to be put into use. It is used to compensate deflection movements of Z spatial pipe line. The hinge, hinge pin and hinge plate can carry thrust and some other additional external force.

Material of Bellows: SUS 304(SUS 321 and SUS316L are also available)

Nominal Diameter: DN100-DN1000

Working Pressure: PN2.5/6/10/16/25

Working Temperature: -80℃/+450℃

Connection: Pipe end connection

Material of Connection: Carbon steel GB/T 700 for standard use(Special material of connection to meet specific customer & industry requirements)

Other choices: Inner sleeve, carbon steel, SUS304(SUS 321 and SUS316L are also available)

Notes: If you have any other requirement, please contact us.

Tianjin Wide Metal Hose Co., Ltd is a manufacturer and supplier of high quality flexible metal hoses, bellow expansion joints and related products, founded in September,1992. The company has skilled design team, professional technology, advanced manufacturing process, up-to-date research and development ability. And with the perfect production, quality control procedures and after-sales service system, the company continuously to create exquisite products to meet multiple demands of customers.

By following the Chinese manufacturing standard GB/T12777-2008, GB/T14515-2010, international standard ISO 10380(E) and the US EJMA, Tianjin Wide has been optimizing its design, introducing European advanced manufacturing equipments, continually developing products and processes to support both existing & new applications. Our main products have passed ISO9001 and CE certification which give us enough confidence to explore the international market. The company provide products and engineering solutions to domestic and foreign customers like Petro China, Sinopec, China Chemical, Sinoma Group, Heidelberg, Lafarge, Invista, P&G,USA DuPont and to the ones from metallurgy, thermal energy, electric power, construction and other fields.

"Stand on users position, consider users interests, strive for perfection" is our constant pursuit and commitment to our customers.

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Tianjin Wide Metal Hose Co.,Ltd

Add.: No.16, Xinghua Branch 4 Road, Xiqing EDZ 300385, Tianjin P.R.China

Tel: +86 22 87979887; Fax:+86 22 83988867

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