EDI specializes in Pulsation Control Analysis as specified in API 618 for reciprocating compressors and in API 674 for reciprocating pumps and is a member of the API 618 and API 674 sub-task forces on vibration control. EDI’s proprietary digital acoustical simulation software has been in use since 1985 and has been utilized extensively for solving problems with existing equipment, as well as for studies to develop pulsation suppression devices in the design stage. Time domain software has been in use since 1995.