Most Sleeve Type expansion joints are similar to the Spool (Arch) Type, except that the sleeve ends have an I.D. dimension equal to the O.D. of the pipe. These joints are designed to slip over the straight ends of the open pipe and be held securely in place with clamps. This type of joint is recommended only for low to medium pressure and vacuum service because of the difficulty of obtaining adequate clamp sealing.

The Lightweight version of the Spool Type expansion joint is dimensionally the same, except for reduced body thickness. This series is designed for very low pressure and vacuum applications. Joints are again available in single and multiple arch types. Consult MDC for the types of clamps available for sealing (T-bolt, Worm Gear, etc.)

Another variant of Sleeve Type expansion joint is the Enlarged End Type. This joint can be manufactured in the same body design as the Spool Type and Lightweight Type. sleeve ends of this design are the same dimension as the O.D. of the pipe, while the rest of the joint is the same dimension as the I.D. of the pipe.

This design can be manufactured with a filled arch to reduce possible turbulence and to prevent collection of solid material in the arch.

Due the variety of applications, Sleeve Type joints are made to order. One exception being MDC’s Model 201 which is offered from stock.

It has Neoprene and Nylon construction with internal and external stainless steel rings to withstand pressure and vacuum. The maximum temperature is 225°F. The joint is secured with T-bolt or worm gear clamps.