... --DN3000MM (1 1/4"--120") Material:EPDM, NBR, NR Rubber Expansion Joint: Size: DN32MM--DN3000MM (1 1/4"--120") Flange ... : DN32MM--DN3000MM (1 1/4"--120")Rubber material: EPDM,NBR, NRRubber sphere: Single sphere, Double sphere Flange: ANSI B16.5, DIN2501 ... )3.0(30)4.8(48)5.5(55)Vacuum KPa(mmHg)53.3(400)86.7(650)100( ... sea water,hot water,oil,acid,alkali etc EPDM double sphere rubber expansion bellow joint