... operation methods 3 Low costs Disturbed flow dam with deflector Disturbed flow characteristics of rubber dam The spoiler ... water. The advantages of rubber dam: item specification/type description inflatable air bladder JBD0.5-100-3Using EPDM, ... equipmentRoots blower, pipeline(with 304#stainless steel),muffler, electronic pressure switch, pressure gage, decompression valve, ring flange, cut-off valve, ...