The Regulator Technologies division ( of Emerson Process Management published Edition VI of its Natural Gas Technologies Pressure Regulator Application Guide. The 752-page guide provides technical applications and pressure data for Fisher, Francel and Tartarini brand natural gas regulators. Information includes principles of various products and applications, such as oil and gas production, transmission, city gates/distribution, commercial/industrial, and residential.

Several new and updated sections include “Regulator Components,” “Principles of Direct-Operated Regulators,” “Principles of Pilot-Operated Regulators,” “Selecting and Sizing Pressure Reducing Regulators,” “Over Pressure Protection Methods,” “Principles of Relief Valves,” “Principles of Series Regulation and Monitor Regulators,” “Valve Sizing Calculations,” “Valve Sizing,” “Temperature Considerations,” “Sulfide Stress Cracking,” “Conversions, Equivalents, and Physical Data.”

The guide is designed for engineers, maintenance technicians and supervisors, and those in purchasing or production/plant operations. To request a copy of the Application Guide, visit