Rubber expansion joints are designed to alleviate piping stress, absorb pipe misalignment, compression and extension, noise and vibration, in a relatively short space. Rubber expansion joints are also known as REJ’s, rubber bellows, rubber joint, single sphere flexible connection and expansion joint bellows. This product can absorb the axial, horizontal and annular displacement. They are also commonly used in Marine Service, Pulp & Paper Systems, Water-Wastewater Sewage and Pollution Control Systems. Installed next to mechanical equipment or between the anchor points of piping system the Joint will Absorb Pipe/Movement/Stress, Compensate Alignment/offset, Decrease Systems Noise, Eliminate Electrolysis, Isolate Vibration and Protect Against Start up / Surge Forces. Structure: One rubber sphere body and two flanges Material: EPDM, Buna Nitrile, Viton, Neoprene, Hyperlon Food Grade: White Nitrile (NBR) (Upon Request) Liner: PTFE, Metallic (Upon Request) Flanges: 316 Stainless Steel, Mild Steel or Zinc Plated in standard or special Flanges sizes Construction: Smoothbore Sphere Profile: Medium Flexibility / Medium Pressure Vacuum Ring: Available on Request Vacuum Conversion: 1 Torr / mmHg = 0.13 kPa or 29.88 inHg Size Available: 1 1/4’’ – 24’’ (Larger sizes upon Request) Temperature: -30°C 105°C
