API STD 672

Abstract

This standard covers the minimum requirements for constant-speed, packaged, general purpose integrally geared centrifugal air compressors, including their accessories. This standard is not applicable to machines that develop a pressure rise of less than 0.35 bar (5.0 psi) above atmospheric pressure, which are classed as fans or blowers. <br>Note: Special Purpose and Process applications, including Process Air Services, are covered by API Std 617. <br>Equipment covered by this standard is considered non-critical, usually spared and may be either of two classifications, Basic or Special Duty. The purchaser shall specify which of the two classifications applies. <br><strong>Basic</strong> packages are vendors' standard packages of proven design and include minimal additional requirements. <br><strong>Special duty</strong> packages are typically specified for installations that require higher availability and include additional features and requirements. <br>Additional or overriding requirements applicable only to packages that have been specified as "Special Duty" are noted at the end of each section (see 6.12; 7.10; 8.5; and 9.4). <br>Conflicting Requirements <br>In case of conflict between this standard and the inquiry, the inquiry shall govern. At the time of the order, the order shall govern.