0
Technology Review

Valve Operability During a Fire

[+] Author and Article Information
Karan Sotoodeh

Piping Engineering,
Aker Solutions,
Oslo 0477, Norway
e-mails: karan_sqi@yahoo.com; karan.sotoodeh@akersolutions.com

Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received July 7, 2018; final manuscript received November 19, 2018; published online January 17, 2019. Assoc. Editor: Kazuhiro Iijima.

J. Offshore Mech. Arct. Eng 141(4), 044001 (Jan 17, 2019) (4 pages) Paper No: OMAE-18-1093; doi: 10.1115/1.4042073 History: Received July 07, 2018; Revised November 19, 2018

Fire and explosion are a major cause of concern for refinery, gas processing, petrochemical, and gas installations. The safest way to deal with a fire is to prevent it. However, fire prevention strategies are not always successful, and fires can happen. Therefore, valves should be designed and tested to be fire-safe. This paper reviews valve design features that can help prevent fires, including secondary sealing between the ball and body in case of losing a soft seat, a graphite fire-safe ring design for stem and seat sealing, antistatic devices, and antistatic tests to ensure that the valve is fire-safe. In addition to design considerations, a fire-safe design should be validated through tests defined in standards such as API 607, API RP 6FA, and ISO 10497. The API RP 6FA tests reviewed in this paper include seven tests that check the operability of the valve from closed to open position. A case study was done to prove the operability of a fail close 38″ pipeline ball valve on an oil export pipeline in case of fire during the first 20 s from the open to the closed position. Thermal analysis on the body of the valve proved that there was no thermal expansion inside the valve after 150 s of fire. Additionally, the maximum radial displacement on the valve body after 150 s of fire was 0.34 mm which is negligible. Thus, the valve thermal expansion did not disturb the operation of the valve after 20 s.

FIGURES IN THIS ARTICLE
<>
Copyright © 2019 by ASME
Your Session has timed out. Please sign back in to continue.

References

Health and Safety Authority (H & SA), 2018, “Fire Prevention,” Health and Safety Authority, Dublin, Ireland, accessed Dec. 3, 2018, http://www.hsa.ie/eng/Topics/Fire/Fire_Prevention
American Petroleum Institute (API), 2016, “Fire Test for Quarter-Turn Valves and Valves Equipped With Non-Metallic Seat,” 7th ed., American Petroleum Institute, Washington, DC, Standard No. API STD 607. https://global.ihs.com/doc_detail.cfm?document_name=API%20STD%20607&item_s_key=00010649&rid=&csf=ASA
Smit, P. , and Zappe, R. W. , 2004, “Valve Selection Handbook,” 5th ed., Elsevier, Oxford, UK.
Norwegian Oil Industry Association, 2013, “Valve Technology,” 2nd ed., Norsk Olje & Gass, Stavanger, Norway.
Skousen, P. L. , 2011, “Valve Handbook,” 3rd ed., McGraw-Hill Education, New York.
American Petroleum Institute (API), 2015, “Specification for Pipeline and Piping Valves,” 24th ed., American Petroleum Institute, Washington, DC, Standard No. API SPEC 6D https://global.ihs.com/doc_detail.cfm?rid=GS&item_s_key=00010678.
International Organization for Standardization (ISO), 2015, “Metal Ball Valves for Petroleum, Petrochemical and Allied Industries,” International Organization for Standardization, Geneva, Switzerland, Standard No. ISO 17292:2015 https://www.iso.org/standard/59736.html.
Harvey, A. F. , 1981, “Fire Testing-Valve and End Connection Seal,” American Petroleum Institute, San Francisco, CA.
American Petroleum Institute (API), 2011, “Specification for Fire Test for Valves,” 3rd ed., American Petroleum Institute, Washington, DC, Standard No. API SPEC 6FA. https://global.ihs.com/doc_detail.cfm?document_name=API%20SPEC%206FA&item_s_key=00010680
Equipment for Potentially Explosive Atmospheres (ATEX), 2017, “ATEX 2014/34/EU Guidelines,” 2nd ed., European Committee for Standardization, Brussels, Belgium, Standard No. ATEX 2014/34/EU http://www.ex-agencija.hr/wp-content/uploads/2013/04/directive_2014_34_EU_ATEX.pdf.

Figures

Grahic Jump Location
Fig. 1

Fire prevention triangle (Courtesy of Health and Safety Authority)

Grahic Jump Location
Fig. 2

Soft seat floating ball valves fire-safe design (Courtesy of Flow-Tek)

Grahic Jump Location
Fig. 3

Antistatic springs (Courtesy of REMY)

Grahic Jump Location
Fig. 4

Ball valve during a fire test (Courtesy of HARTMANN VALVES GmbH)

Grahic Jump Location
Fig. 5

Pipeline ball valve 38 in CL1500 on the platform

Grahic Jump Location
Fig. 6

Pipeline ball valve 38 in CL1500

Grahic Jump Location
Fig. 10

Fire box around the actuator of a ball valve

Grahic Jump Location
Fig. 9

Maximum radial displacement in the body of the valve

Grahic Jump Location
Fig. 8

Temperature distribution on the valve body after 150 s

Grahic Jump Location
Fig. 7

Applying 1100 °C to the outer surface of the valve

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In