U-Type Rubber Expansion Joints

Unaflex "SUPREME" U-Type Expansion Joints form a flexible connection between equipment outlet and inlet flanges. They are normally constructed of a natural rubber tube, several heavy plies of rubber or neoprene-impregnated fabric, and a neoprene cover to protect the carcass. Maximum operating temperatures is 180?F, and the carcass will withstand full vacuum to 25 psi. They are available in the flowing configurations:

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RECTANGULAR	OVAL	ROUND
Style 145	Style 155 and 157	Style 156 and 185
Rectangular with internal flange (no arch) for vacuum and pressure. They allow ample axial and lateral movement capable of withstanding 30 inches of vacuum, or 25 psi gauge internal pressure. Retaining flanges are provided for support.	Oval with external flange available in Style 155 for vacuum only and Tyel 157 for pressure and vacuum. Used in installations where external bolting is desired. Style 155 withstands 30 inches of vacuum with standard flat steel retaining rings. Style 157 is designed for both 30 inches of vacuum and 25 psi gauge internal pressure and is designed with special steel fabricated support rings.	Round lightweight rubber expansion joints available in Style 156, "U" type, no arch, for vacuum only; Style 185 round "U" type, no arch, steel reinforced for vacuum and pressure. Style 156 body is of duck and rubber without metal reinforcing. Style 185 is constructed with steel reinforcement. These units can also be supplied with offset features.

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