MAC-F, MAC-FT, MAC-FP, MAC-FC, MAC-FB, MAC-FR & MAC-O Series
High quality custom-made expansion joints supplied with split or fixed steel backing flanges. The full face flanges are integral with the body of the joint and drilled to conform the bolt pattern of the companion flanges of the pipe line.
Rubber bellows: Reinforced EPDM, EPDM HT, Nitrile, Spec. Nitrile, Nitrile white, Hypalon, SBR, Viton®, Chloroprene, etc.
Flanges: shot-blasted and painted carbon steel as standard. Also available in hot dip galvanized carbon steel, stainless steel, etc. Drilled to EN, ANSI, AWWA, JIS standards or any specific dimension.
For vacuum applications, an internal vacuum ring is incorporated.
MAC-F and MAC-FT can be supplied with one or more arches. Dimensions from DN 15 to DN 6000.
Gimbal Expansion Joints are designed to allow angular movement in any plane by the use of two pairs of hinges affixed to a common floating gimbal ring.
These expansion joints can be fabricated with single and multiple arches.
The gimbal ring, hinge and pins, are designed to restrain the pressure thrust due to internal pressure and shear forces.
A gimbal ring is either round or square.
For round gimbals the torsional moment shall be considered and for square gimbals the instability due to the bending shall be considered.