Rubber Expansion Joints Expansion joints are specially engineered products inserted in a rigid piping system to achieve one or more of the following: Absorb movement Improved thermal stability Relieve system strain due to thermal change, load stress, pumping surges, wear or settling Reduce mechanical noise Compensate for misalignment Eliminate electrolysis between dissimilar metals They are ideally suited for hundreds of applications in a wide range of industries, including: Power Generation Pulp and Paper Chemical Processing Water/Waste Water Marine Mining Heating, Ventilating, and Air Conditioning Rubber Expansion Joints Union Type Size: 1/2" to 3", DN15 to DN80 Union Material: Malleable Iron Union Dimension: ASME B16.39 Union Thread: BSPT, NPT, DIN Rubber Material: SILICONE, PTFE/TFE/FEP, EPDM, VITON, HYPALON, SBR/GRS/BUNA-S, BUNA-M/NITRIL, CHLOROBUTYL, BUTYL, NATURAL RUBBER, GUM RUBBER, NEOPRENE Working Pressure: PN10/PN16, Class 150/Class 300 Medium: Water, Chemical, Oil&Gas, Alkali Diluted, Acid Diluted etc. Rubber Expansion Joints Flange Type Size: 1 1/4" to 120", DN32 to DN3000 Flange Material: Carbon Steel, Stainless Steel Flange Dimension: ANSI B16.5, BS4504, DIN EN 1092-1 Rubber Material: SILICONE, PTFE/TFE/FEP, EPDM, VITON, HYPALON, SBR/GRS/BUNA-S, BUNA-M/NITRIL, CHLOROBUTYL, BUTYL, NATURAL RUBBER, GUM RUBBER, NEOPRENE Working Pressure: PN10/PN16, Class 150/Class 300 Medium: Water, Chemical, Oil&Gas, Alkali Diluted, Acid Diluted etc. Into Plywood Case