Flexible expansion joint with rubber flange Flexibe expansion joints are designed for piping systems to absorb pipe movements, relieve stress, reduce system noise/vibration, compensate for misalignment/offset and to protect rotating mechanical equipment against start-up surge forces. Rubber flexible expansion joint has been successfully installed in tough demanding applications such as: chemical/petrochemical, marine, power generation, pulp/paper, steel mills and water/wastewater treatment. Features and benefits: 1, versatile hand-built construction. Made in china 2, absorbs directional movement 3, absorbs vibration, noise and shock 4, compensates for misalignment 5, wide flowing arch design 6, virtually eliminates sediment buildup 7, higher pressure rating than conventional expansion joints 8, high vacuum rating (up to 30" hg) can be supplied for certain sizes 9, economical fully molded construction 10, solid galvanized steel floating flanges speed the installation time Size (dn50~200) (dn250~1200) Working pressure mpa 2 10 Explosion pressure mpa >5 >2 Vacuum kpa(mmhg) 53.3(400) 44.9(350) Temperature -20--115 centigrade(for special requirements could reach to-30--250 centigrade ) Media Air, compressed air, water, sea water Heated water, oil, acid, alkali Note: 1. Supply range can be up to dn3000, detailed data can be offered upon request. 2. Control units must be used when piping is not properly anchored. 3. The rated pressure 2.5mpa products will only be sold with control units. 4. Pressure rating is based on 30¡ãc operating temperature. The pressure rating is reduced at higher temperatures. 5. Weights in the above table are joints with din pn16 drilling retaining ring flanges. Plastic bags, wooden box, or according to your demand