Temperature impacts on the set pressure of soft seated pressure relief valves

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Description

From a safety standpoint, regardless of plant or facility type, the most important pieces of equipment are the pressure relief devices. The most critical characteristics of a pressure relief device are its set pressure and the related relieving capacity. The Set Pressure of a pressure relief device is defined as that value of increasing inlet static pressure at which the discharge becomes continuous (ASME PTC 25-1994, Performance Test Codes). To preclude an unsafe overpressure situation, the set pressure of the pressure relief device must not exceed the maximum allowable working pressure of the equipment or system being protected. Because of ... continued below

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10 p.

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Engel, J.J.; Zirps, G.T. & Gleason, R.B. November 1, 1995.

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Description

From a safety standpoint, regardless of plant or facility type, the most important pieces of equipment are the pressure relief devices. The most critical characteristics of a pressure relief device are its set pressure and the related relieving capacity. The Set Pressure of a pressure relief device is defined as that value of increasing inlet static pressure at which the discharge becomes continuous (ASME PTC 25-1994, Performance Test Codes). To preclude an unsafe overpressure situation, the set pressure of the pressure relief device must not exceed the maximum allowable working pressure of the equipment or system being protected. Because of testing facility limitations, size or pressure, pressure relief valves intended for elevated temperature service are often set using ambient temperature air. Adjustments are made to the ambient valve opening pressures to compensate for the temperature differences. The extent of the adjustments to the pressure relief valve set pressure is important to ensure the valve will provide the required overpressure protection at the elevated in-service temperature.

Physical Description

10 p.

Notes

OSTI as DE96001916

Source

  • 1995 International mechanical engineering congress and exhibition, San Francisco, CA (United States), 12-17 Nov 1995

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  • Other: DE96001916
  • Report No.: WSRC-MS--95-0157
  • Report No.: CONF-951135--22
  • Grant Number: AC09-89SR18035
  • Office of Scientific & Technical Information Report Number: 120920
  • Archival Resource Key: ark:/67531/metadc619258

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Feb. 10, 2016, 2:07 p.m.

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Engel, J.J.; Zirps, G.T. & Gleason, R.B. Temperature impacts on the set pressure of soft seated pressure relief valves, article, November 1, 1995; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc619258/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.