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How to figure a continuous service rating

How to figure a continuous service rating

How to figure a continuous service rating

(OP)
A small needle type valve has a pressure rating of 3500 psi and a temperature rating of 900 F but the manufacturer (who is no longer around) doesn't indicate if this is a continuous service rating. What testing must I do to assure myself the stated psi/temp will work in a continuous 3500-psi, 900 F application?
What's the ASME/ANSI Standard I should buy to check this out?

Thanks in advance for your time.

RE: How to figure a continuous service rating

I assume you have checked the maintenance manual and the valve list and found nothing.

The valve may have been supplied through a third party such as the turbine supplier in which case they may have a record.

Regards,

athomas236

RE: How to figure a continuous service rating

Fitz-

This really belongs in forum408: Valve engineering where you'll get a much better audience. I'd suggest you repost it there then hit the Red Flag button and ask for this thread to be removed.

jt

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