Table 29 to Subpart G of Part 63 - Seal Related Factors for External Floating Roof Vessels

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Table 29 to Subpart G of Part 63 - Seal Related Factors for External Floating Roof Vessels

Seal type	Welded vessels		Riveted vessels
Seal type	K_S	N	K_S	N
Metallic shoe seal:
Primary seal only	1.2	1.5	1.3	1.5
With shoe-mounted secondary seal	0.8	1.2	1.4	1.2
With rim-mounted secondary seal	0.2	1.0	0.2	1.6
Liquid mounted resilient seal:
Primary seal only	1.1	1.0	^a NA	NA
With weather shield	0.8	0.9	NA	NA
With rim-mounted secondary seal	0.7	0.4	NA	NA
Vapor mounted resilient seal:
Primary seal only	1.2	2.3	NA	NA
With weather shield	0.9	2.2	NA	NA
With rim-mounted secondary seal	0.2	2.6	NA	NA

                    
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