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Re: Test lifting relief valves


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Posted by Harold Kestenholz - hydronic.net on April 30, 2002 at 20:04:58:

In Reply to: Test lifting relief valves accelerates deterioration? posted by Gern Blanston on April 30, 2002 at 18:52:55:

The frequency of pop testing or lifting depends upon the local codes and boiler service. Many manufacturers of boilers recommend a yearly start-up test as a minimum. More frequent testing may be required. The relief valve manufacturers may write instructions to test the valve weekly, or monthly.

http://www.usace.army.mil/inet/usace-docs/armytm/tm5-692-1/chap9VOL-I.pdf

http://www.uscg.mil/tcyorktown/mSchools/MII/PQS/MSQual.pdf

http://ldms.larc.nasa.gov/h1710-42c.pdf

http://www.osh.dol.govt.nz/order/catalogue/pdfs/slines40.pdf




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