UIP INTERNATIONAL

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Single Bellows Expansion Joints

UIP International, Inc. “MATCHLESS” Metal Bellows are manufactured from solution annealed A/SA240 321SS sheet rolled into a tube and seam welded. Multi-ply bellows can be designed and manufactured based on the application and design requirements. UNAFLEX® has a wide variety of materials available to design and manufacture bellows.

UIP has the most commonly used metal bellows materials and thicknesses in stock so we are prepared to serve our customers faster. Our “MATCHLESS” bellows conform to the latest EJMA standards.

Overall lengths of standard assemblies are based on 150# drilling for both plate flange and raised face slip on thicknesses. Overall length may change if other types of flanges are requested. Overall lengths of the SHP and LHP series are based on 300# raised face slip on flanges.

Fixed Plate Flanges 44

Fixed Plate Flanges-Type 44

UIP International, Inc. Type 44 metal bellows expansion joints are provided with 150# drill carbon steel flanges (AWWA Class D C207) fixed on each end of the expansion joint. Bellows necks are welded directly to the flanges.

Floating Plate Flanges 66

Floating Plate Flanges-Type 66

UIP International, Inc. Type 66 metal bellows expansion joints are provided with 150# drill carbon steel flanges (AWWA Class D C207) floating on each end of the expansion joint. Bellows necks are flared (Vanstone) to retain the flanges. Floating flange arrangement allows use of carbon steel flanges when all wetted materials need are required to be either Stainless Steel or an alloy material. Floating flanges also permit bolt hole alignment in the field.

Welding Nipples (Pipe Ends)-Type 22

UIP International, Inc. Type 22 metal bellows expansion joints are provided with carbon steel weld ends on each end. Weld ends are bevelled per ANSI standards. Schedule 40 (sch. std.) pipe is used through 12″ ND and 1/4″ wall thickness for sizes over 12″ unless otherwise specified.

Raised Face Flange 55

Raised Face Flange-Type 55

UIP International, Inc. Type 55 metal bellows expansion joints are provided with 150# drill and 300# drill carbon steel raised face flanges.