Rubber Expansion Joints
Rubber Expansion Joints
Protecting Piping and Equipment Systems from Stress/Motion
Spool Type-Single Arch-Double Arch
Spherical Type
Wide Arch Type
Concentric Reducer Type
Eccentric Reducer Type
Benefits of Rubber Expansion Joints:
One-Piece Construction
A leakproof tube extends through the bore and forms the outside surfaces of the flanges. Natural or synthetic rubber compounds are used to meet the requirements of the application. Both tube and flange are coated with a special urethane formulation for extra resistance to aging.
Longer Service-Higher Pressures
Longer life and higher working pressures result from “double-protected” construction. The tied metal rings and extra plies over the arch prevent usual causes of expansion joint failure.No Gaskets
All expansion joints are supplied with full-face flanges of vulcanized rubber and fabric. This design make gaskets unnecessary. Large sealing surface permits low bolting pressures and tends to equalize uneven surfaces to provide a tight seal.
Resists Exposure
A one-piece rubber cover is especially compounded to provide optimum resistance against aging and exposure. If oil is present in the application, oil-resistant compounds are used for maximum service life.
Advantages Over Metallic Expansion Joints:
Greater resistance to shock
Natural recovery from movement
Both axial and lateral deflection
No flex-cracking with age
No electrolysis problem
Better insulation again vibration and sound
No gaskets needed
Requires less space
Lighter weight
Easier to install
Higher working pressures
Longer service life
Requires no maintenance