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Multi-Ply 308/311 Expansion Joints

Multi-Ply 308/311 Expansion Joints

The Original Multi-Ply Expansion Joint – Always Ask For Keflex™

Keflex™ Multi-Ply Expansion Joints are the premier expansion joints in the industry. They offer the ultimate solution to piping thermal expansion problems. A wide variety of end configurations are available and pressure ratings range from vacuum to 600 PSI at room temperature.

A variety of materials are also available for any type of media, including highly corrosive acids or gases. Keflex™ Multi-Ply Expansion Joints have a softer spring rate compared to other expansion joints with the same dimensions, making them easier to install, and requiring less force to actuate in service. The inner section of the engineering brochure, accessed through the link below, highlights the advantages of the multi-ply construction.

Product Literature

 Brochure

 Installation Instructions

 Submittals

Series 308 (No Shroud) Single 150# Expansion Joint

 1 inch travel groove ends
 1 inch travel flgs tie rods
 1 inch travel flgs
 1 inch travel weld ends tie rods
 1 inch travel weld ends
 2 inch travel flgs tie rods
 2 inch travel groove ends
 2 inch travel flgs
 2 inch travel weld ends tie rods
 2 inch travel weld ends
 3 inch travel flgs
 3 inch travel groove ends
 3 inch travel flgs tie rods
 3 inch travel weld ends tie rods
 3 inch travel weld ends
 4 inch travel groove ends
 4 inch travel flgs tie rods
 4 inch travel flgs
 4 inch travel weld ends tie rods
 4 inch travel weld ends

Series 308 (No Shroud) Dual 150# Expansion Joint

 Dual center base 2 inch travel
 Dual center base 4 inch travel
 Dual center base 6 inch travel
 Dual center base 8 inch travel
 Weld ends 2 inch travel
 Weld ends 4 inch travel
 Weld ends 6 inch travel
 Weld ends 8 inch travel
 Dual tie rods 2 inch travel
 Dual tie rods 4 inch travel
 Dual tie rods 6 inch travel
 Dual tie rods 8 inch travel
 Dual tie rods weld ends 2 inch travel
 Dual tie rods weld ends 4 inch travel
 Dual tie rods weld ends 6 inch travel
 Dual tie rods weld ends 8 inch travel

Series 308 (No Shroud) Single 300# Expansion Joint

 1 inch travel flgs tie rods
 1 inch travel flgs
 2 inch travel flgs tie rods
 2 inch travel flgs
 3 inch travel flgs tie rods
 3 inch travel flgs

Series 308 (No Shroud) Dual 300# Expansion Joint

 Plate flgs 2 inch travel
 Plate flgs 4 inch travel
 Plate flgs 6 inch travel
 Weld ends 2 inch travel
 Weld ends 4 inch travel
 Weld ends 6 inch travel

Series 311 (Shrouded) Single 150# Expansion Joint

 1 inch travel groove ends
 1 inch travel flgs tie rods
 1 inch travel flgs
 1 inch travel weld ends tie rods
 1 inch travel weld ends
 2 inch travel flgs tie rods
 2 inch travel groove ends
 2 inch travel flgs
 2 inch travel weld ends tie rods
 2 inch travel weld ends
 3 inch travel flgs
 3 inch travel groove ends
 3 inch travel flgs tie rods
 3 inch travel weld ends tie rods
 3 inch travel weld ends
 4 inch travel groove ends
 4 inch travel flgs tie rods
 4 inch travel flgs
 4 inch travel weld ends tie rods
 4 inch travel weld ends

Series 311 (Shrouded) Dual 150# Expansion Joint

 Plate flgs 2 inch travel
 Plate flgs 4 inch travel
 Plate flgs 6 inch travel
 Plate flgs 8 inch travel
 Weld ends 2 inch travel
 Weld ends 4 inch travel
 Weld ends 6 inch travel
 Weld ends 8 inch travel
 Dual tie rods 2 inch travel
 Dual tie rods 4 inch travel
 Dual tie rods 6 inch travel
 Dual tie rods 8 inch travel
 Dual tie rods weld ends 2 inch travel
 Dual tie rods weld ends 4 inch travel
 Dual tie rods weld ends 6 inch travel
 Dual tie rods weld ends 8 inch travel

Series 311 (Shrouded) Single 300# Expansion Joint

 1 inch travel flgs tie rods
 1 inch travel flgs
 1 inch travel weld ends tie rods
 1 inch travel weld ends
 2 inch travel flgs tie rods
 2 inch travel flgs
 2 inch travel weld ends tie rods
 2 inch travel weld ends
 3 inch travel flgs
 3 inch travel flgs tie rods
 3 inch travel weld ends tie rods
 3 inch travel weld ends

Series 311 (Shrouded) Dual 300# Expansion Joint

 Plate flgs 2 inch travel
 Plate flgs 4 inch travel
 Plate flgs 6 inch travel
 Weld ends 2 inch travel
 Weld ends 4 inch travel
 Weld ends 6 inch travel
 Dual tie rods 2 inch travel
 Dual tie rods 4 inch travel
 Dual tie rods 6 inch travel