API RP 688 is a (not a mandatory standard) focused on diagnosing and mitigating pulsation-induced vibration problems in reciprocating pumps and compressors . It bridges the gap between API 618 (compressors) and API 674 (pumps), offering unified guidance.
(primary focus, often used with API 618 ). api 688 pdf
Legally, standards are voluntary unless adopted by a regulatory body (e.g., OSHA, local building codes). However, most EPC contracts and insurance policies for oil & gas facilities explicitly require compliance with API 688. Ignoring it exposes you to liability and voided warranties. API RP 688 is a (not a mandatory
The standard details 3D finite element methods and acoustic simulation to predict "shaking forces" that cause vibration. offering unified guidance. (primary focus