API STD 618: Reciprocating Compressors for Petroleum, Chemical and Gas Industry Services

API STD 618 establishes the essential requirements for low- to moderate-speed reciprocating compressors and their drivers used in petroleum, chemical, and gas industries. It addresses both lubricated and nonlubricated cylinders designed for handling process air or gas. The standard also encompasses associated systems such as lubrication, controls, instrumentation, intercoolers, aftercoolers, pulsation suppression devices, and other auxiliary equipment, ensuring reliable and efficient compressor operation in demanding industrial environments.