Supreme Lightweight Style 189
UIP International, Inc. “SUPREME” Style 189 Lightweight Rubber Expansion Joints are available in round, or rectangular, with arch configurations. They are recommended for pressure and limited vacuum applications such as air, gas and water service where pressures are slight and duty not severe.
They feature a lighter wall and flange thickness to provide extreme flexibility. Their duck plies are reinforced with steel rings.
Style 189 Joints are also available for temperatures up to 500ºF and can be made with sleeve ends.
Maximum operating pressure for all sizes is 25 PSI internal pressure and 15 inches of mercury vacuum.