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ASTM F1565-00(2013)

Historical Reaffirmation

Standard Specification for Pressure-Reducing Valves for Steam Service

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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 uses the inlet steam pressure to position the main valve plug via an operating piston.


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 uses the inlet steam pressure to position the main valve plug via an operating piston. The valves shall be of the following compositions: Composition B made with 1.25% chromium, 0.5% molybdenum and Composition B made with carbon steel. All materials shall be selected to prevent corrosion, galling, seizing, and excessive wear or erosion where applicable. Clearances shall prevent interference as a result of the thermal expansion. Cadmium plating is prohibited. Components of these valves shall include body, bonnet, bottom cover, internal trim, cylinder liner, piston, gaskets, diaphragm, springs, and bolts. Valves will be operated, maintained, and repaired on board ships and shall emphasize simplicity, maintainability, ruggedness, and reliability. Design shall permit access for adjustment and repair when working from either side of the valve and without requiring removal of the valve body from the line. Each production valve shall be subjected to the following tests: nondestructive test, hydrostatic test, seat tightness test, and external leakage test.


SDO ASTM: ASTM International
Document Number F1565
Publication Date May 1, 2013
Language en - English
Page Count 8
Revision Level 00(2013)
Supercedes
Committee F25.11
Publish Date Document Id Type View
May 10, 2000 F1565-00 Revision
Nov. 15, 2024 F1565-00R24 Reaffirmation
May 1, 2019 F1565-00R19 Reaffirmation
May 1, 2013 F1565-00R13 Reaffirmation
May 1, 2006 F1565-00R06 Reaffirmation