40 CFR Appendix Table 27 to Subpart G of Part 63, Summary of Internal Floating Deck Fitting Loss Factors (KF) and Typical Number of Fittings (NF)

Table 27 to Subpart G of Part 63 - Summary of Internal Floating Deck Fitting Loss Factors (KF) and Typical Number of Fittings (NF)
Deck fitting type Deck fitting loss factor (KF) a Typical number of fittings (NF)
Access hatch 1.
Bolted cover, gasketed 1.6
Unbolted cover, gasketed 11
Unbolted cover, ungasketed b 25
Automatic gauge float well 1.
Bolted cover, gasketed 5.1
Unbolted cover, gasketed 15
Unbolted cover, ungasketed b 28
Column well (see Table 24).
Builtup column-sliding cover, gasketed 33
Builtup column-sliding cover, ungasketed b 47
Pipe column-flexible fabric sleeve seal 19
Pipe column-sliding cover, gasketed 32
Pipe column-sliding cover, ungasketed
Ladder well 1.
Sliding cover, gasketed 56
Sliding cover, ungasketed b 76
Roof leg or hanger well (5 D/10 D 2/600) c.
Adjustable b 7.9
Fixed 0
Sample pipe or well 1.
Slotted pipe-sliding cover, gasketed 44
Slotted pipe-sliding cover, ungasketed 57
Sample well-slit fabric seal, 10 percent open area b 12
Stub drain, 1-in diameter d 1.2 (D 2/125) c.
Vacuum breaker 1.
Weighted mechanical actuation, gasketed b 0.7
Weighted mechanical actuation, ungasketed 0.9

a Units for KF are pound-moles per year.

b If no specific information is available, this value can be assumed to represent the most common/typical deck fittings currently used.

c D = Tank diameter (feet).

d Not used on welded contact internal floating decks.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.

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