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Description / Abstract:
This Practice describes the standard arrangement for liquid ring
vacuum pumps and compressors and systems employing liquid ring
machines. This Practice provides a framework for specifying a skid
mounted liquid ring machines system "package," for systems with
drivers less than or equal to 150 kW (200 hp). This Practice can be
applied to simple once-through arrangements, partial recirculation,
and total recirculation systems.
Comment: This Practice can be used in conjunction with
API 681.
A liquid ring machine data sheet, RESP004-DM/D, is
included with this Practice. This data sheet may be used to
communicate purchaser requirements; however, supplemental
information may be necessary to fully define process
requirements.
Vendor websites provide excellent visualizations of how LRV
machines operate.