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Gate Valves Trim in API 600 Latest Edition

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BFZHA

BFZHA

Mechanical
Joined
Oct 29, 2009
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33
Location
DZ
Hi,
In the latest edition of API 600 (Fifteenth Edition - 2015) in Table 8, the trims No. 1 (13Cr) and No. 2 (SS304) have become obsolete.

I would like to know if these trims are removed definitly from the manufacturing process or we can specify them (13Cr for example) for some non Hazardous services.

I will note that in an active edition of API 623 (First Edition - 2013) for globe valves, these trims are specified.

Best regards
 
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