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TWIN CITY HOSE Externally Pressurized Expansion Joints The perfect solution to absorb thermal expansion. “TFEP” Expansion Joints can be utilized in piping for domestic hot water, chilled water, heating water, steam and steam condensate as well as for other equipment as indicated within the specifications, drawings and equipment schedules to compensate for thermal pipeline growth. |
Externally Pressurized EJ's: |
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TWIN CITY HOSE Externally Pressurized Expansion Joints DESIGN Joints are rated for 300 PSIG working pressure up to 650º F. Axial movements of 4” compression and 3/4” extension (short) or 8” compression and 1-1/2” extension (long). Externally Pressurized Expansion Joints are designed with external pressure to the bellows along with an internal guide ring which eliminates bellows squirm; they have an internal liner as part of their integral design to eliminate flow induced vibrations along with an internal limit stop to eliminate over-extension of the bellows. They are compact when compared to a pipe loop, which saves valuable space. Simplicity of this proven design eliminates packing, requires no maintenance, will demonstrate long-life, dependability and is easy to insulate. Available from 3” ID to 48” ID. |
Expansion Joints shall be utilized on heat transfer piping, tubing, heaters, radiators and other equipment as indicated within the specifications, drawings and equipment schedules to compensate for thermal pipeline growth. Vertical piping for domestic hot water, chilled water, heating water, steam and steam condensate shall be provided with expansion compensators at each floor. Joints shall be constructed with Series 300 stainless steel 3-ply bellows and carbon steel seamless shroud, internal liner and end fittings. All connections shall have ends to match piping system. Joints for steel piping shall have plain weld ends, male NPT threaded ends, grooved ends or flanged ends. Joints to have a minimum rating of 300 PSIG working pressure and axial movements of 4” or 8” axial compression as required. Carefully align joint and make proper allowance for temperature of pipe at time of installation. Pipe guides should be placed as per EJMA standards. Expansion Joints shall be Twin City Hose Series “TFEP”.