40 CFR Table 29 to Subpart G of Part 63
Seal Related Factors for External Floating Roof Vessels
June 9, 2020
Open Table
| Seal type | Welded vessels | Riveted vessels | ||
|---|---|---|---|---|
| KS | N | KS | 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 | aNA | 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 |
aNA = Not applicable.
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