MDC Model 102 is the most widely used Twin Sphere type of expansion joint / flexible connector in the industry today.

It provides the greatest pressure, temperature and movement, at a very reasonable cost. The joint’s resiliency also helps control pulsation shocks and noise transmission.

Constructed of Neoprene*
and Nylon, the spherical shape allows pressure to exert itself uniformly in all directions, thus reducing the force exerted on pipe lines and equipment. Bias-ply tire cord provides strength, a high safety factor, and low force to move. Precision molding provides a dense, uniform carcass.

Solid plate steel flanges grip the sealing area and provide a fluid tight connection. All flanges are drilled or optionally tapped to mate with 150# or 300# companion flanges. The tapped bolt holes and rotating flanges make installation easy. The arch is self-cleaning, thus eliminating the need for filled arch when solids are present in the stream.

* Other standard materials: EPDM, Butyl, Nitrile, Hypalon, Viton.

This flexible joint should be installed at the length shown on the drawing. MDC Model 102 with Control Rods must be used to maintain joint integrity in systems where proper guiding and anchoring might not be possible or verifiable. Not intended for torsion.