... : Size: DN32MM--DN3000MM (1 1/4"--120") Rubber material: EPDM, NBR, NR, Neoprene Rubber Joint without flange: Size: DN32MM--DN3000MM (1 1 ... /4"--120")Rubber material: EPDM, NBR, NR, NeopreneRubber sphere: Single sphere, Double sphereMain ... ~250Applicable Mediawater,sea water,hot water,oil,acid,alkali etc Rubber Joint without flange