Standard Specification for Pressure-Reducing Valves for Steam Service
|Publication Date:||15 October 1994|
|ICS Code (Pressure regulators):||23.060.40|
1.1 This specification covers self-contained, internally operated, globe style, pressure-reducing valves for use in steam service. In these valves, the downstream pressure feedback is sensed by a spring-loaded diaphragm to position a pilot valve--the pilot valve utilizes the inlet steam pressure to position the main valve plug via an operating piston.