Two metal bellows elements connected by a pipe centre spool fitted with flanges or pipe weld ends, with hinge plates and pins to contain pressure thrust forces on a piping system.

This joint is virtually two single HFF joints connected by a factory fitted pipe piece thereby reducing the system weight by involving two flanges instead of four, and assisting in installation by not having to provide the spool piece on site.

Suitable for large lateral offset movements in a single plane only with minimal reaction forces.

Manufactured to the guidelines laid down in the Standards of the Expansion Joint Manufacturers Association Inc. (EJMA).