Rubber Expansion Joints

 

Molded spherical type rubber expansion joints are most commonly found in tough demanding applications as found in: Food Processing Systems, Industrial Process Piping Systems, HVAC Hot Water & Chiller Lines and Water/Waste-Water Piping Systems. Our Series 240/242 products are manufactured and inventoried in single (240) and double (242) spherical arch configurations and come in a variety of elastomers such as butyl, EPDM, Hypalon®, FDA-Nitrile, Neoprene, Nitrile and Teflon® lined to meet chemical, heat or abrasive conditions.

Additional Features and Benefits:

The Series 240 and 242 rubber expansion joints are engineered in a molded style design thus making them inherently stronger than the conventional hand-built "Spool" types. Internal pressure within a sphere is exerted in all directions, distributing forces evenly over a larger area. The spherical design "flowing arch" reduces turbulence, sediment build up, thrust area and the effects of thrust on piping system equipment.

Greater movements are available with the Series 240/242 products as compared to the movements of conventional hand built spool types. These products have lower spring rates and are also easier to install in non-standard openings, caused by equipment shifting or settling.

Easy product installation is made available with alignable metallic rotating ring flanges. The Series 240/242 expansion joints are manufactured with floating metallic flanges which freely rotate on the bellow, compensating for mating flange misalignment and speed up installation time. Tapped holes are also standard on our designs which eliminates the added bolting costs.

The Series 240/242 spherical rubber expansion joints are manufactured by high pressure molding of elastomer and high tensile fabric reinforcement. This process allows for thinner wall construction thus creating lower spring forces required to compress/extend/offset the expansion joint thus reducing stress on related piping/flange/equipment. (The Style 240/242A and 240/242C expansion joints are acceptable for use with plastic piping systems where even lower deflection forces are required.)