653-2009
Clarify Diameter of the Penetration
Rev. 1 (Fall 2014)
Agenda Item: 653-2009
Title:
Clarify Diameter of the Penetration
Date:
11/11/2014
Contact:
Name:
John A Pachuta
Company:
Sunoco Logistics Partners
Phone:
610-670-3269
E-mail:
japachuta@sunocologistics.com
Purpose:
To Clarify the Diameter of a Shell Penetration for Users
Reference:
Section 9.8.6(a) in API Standard 653
Source:
From Inquiry 653-2013-F5
Revision:
0 (Original Proposal in Blue)
1 (As Presented and Reviewed in Red) – Fall 2014 Meeting
Impact:
No impact in terms of cost and time.
Background:
Proposal:
Add clarification for “diameter of the penetration” in Section 9.8.6(a).
Rationale:
No definition currently exists in ether API Standard 650 or API Standard 653.
Notes:
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653-2009
Clarify Diameter of the Penetration
Rev. 1 (Fall 2014)
Existing Wording:
9.8.6 Penetrations larger than 2 in. NPS shall be installed with the use of an insert
plate if the shell plate thickness is greater than ½ in. and the shell plate material does
not meet the current design metal temperature criteria. In addition, the following
requirement shall be met:
a) the minimum diameter of the insert plate shall be at least twice the diameter of the
penetration or the diameter plus 12 in., whichever is greater;
Proposed Wording:
9.8.6 Penetrations larger than 2 in. NPS shall be installed with the use of an insert
plate if the shell plate thickness is greater than ½ in. and the shell plate material does
not meet the current design metal temperature criteria. In addition, the following
requirement shall be met:
a) the minimum diameter of the insert plate (if circular), or minimum dimension across
the insert plate from end to end in any direction (if other than circular if a polygon),
shall be at least twice the diameter of the opening in the shell insert plate that
accommodates the penetration or the diameter plus 12 in., whichever is greater.
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