The standard for Controlled Volume Positive Displacement Pumps (metering and diaphragm pumps).
The Complete Guide to API 688: Pulsation and Vibration Control in Positive Displacement Pump Systems
Reciprocating machinery creates a cyclic, unsteady flow of fluid due to the stroking action of the pistons. This periodic flow generates pressure waves, known as acoustic pulsations. api 688 pdf
The API 688 PDF can be purchased legally through official standards distributors such as: The American National Standards Institute (ANSI) Webstore. IHS Markit / S&P Global Standards Store. Techstreet. Implementing API 688 in Projects
The standard is highly technical and contains detailed guidelines on the following core areas: The API 688 PDF can be purchased legally
: Determine the cylinder count, operating speed range, and gas properties.
: Standard for low-risk, lower-horsepower applications. Implementing API 688 in Projects The standard is
(officially titled Pulsation and Vibration Control in Positive Displacement Machinery Systems ) is a globally recognized engineering standard developed by the American Petroleum Institute (API). For engineers, plant operators, and rotating equipment specialists in the petroleum, petrochemical, and natural gas industries, having a reliable understanding—or an official copy of the api 688 pdf —is essential.
After installation, the standard mandates field vibration and pulsation measurement under normal operating conditions. Acceptance criteria are provided for:
API 688 addresses systems prone to fatigue and structural damage caused by pulsations and vibrations. It specifically covers: Southwest Research Institute API Std 688 - Accuris Standards Store