Page 240 - Pipeline Rules of Thumb Handbook

Corrosion/Coatings 227

Estimate the amount of primer required for tape

Multiply pipe surface area by 0.001047 to obtain the Pipe surface area = 1.73442 sq. ft./ft. (Table 7 Pipe Data
number of gallons of primer required per mile of pipe. Section 3)

Example: Total surface area = 1.73442 ¥ 5280 = 9,157 sq. ft.

Pipe OD = 6 5/8≤ Gals of primer = 9,157 ¥ 0.001074 = 9.8 gals.
Length = 1 mile (Use 10 gals.)

Tape requirements for fittings

Reducer Tape Linear Square Tee Tape Linear Square 90° LR Tape Linear Square
Size Width Feet Feet Size Width Feet Feet Ell Size Width Feet Feet

3 ¥ 2 2 9.2 1.5 2 2 13 2.2 2 2 9 1.5
4 ¥ 3 3 8.4 2.1 3 2 21 3.5 3 2 11 1.8
6 ¥ 4 4 12 4 4 2 28 4.6 4 3 14.6 3.6
8 ¥ 4 6 14 17 6 3 38 9.5 6 4 26 8.6
10 ¥ 6 6 18 9 8 4 45 15 8 4 40 16.5
12 ¥ 8 6 25 12 10 6 34 17 10 6 48 24
14 ¥ 10 6 26 13 12 6 50 25 12 6 64 32
16 ¥ 12 6 38 19 14 6 60 30 14 6 81 45
18 ¥ 14 6 50 25 16 6 71 35.5 16 6 101 50.5
20 ¥ 16 6 66 33 18 6 85 42.5 18 6 123 61.5
20 6 100 50 20 6 146 73
22 6 126 63 22 6 173 86.5
24 6 132 66 24 6 201 100.5

Tape requirements for fittings, continued

90° SR Ell Tape Linear Square 45° Ell Tape Linear Square
Size Width Feet Feet Size Width Feet Feet

2 2 7 1.5 2 2 5.6 0.93
3 2 10 1.8 3 2 9 1.5
4 3 13 3.25 4 3 13 3.2
6 4 21 7 6 4 17.3 5.75
8 4 38 13 8 4 36 12
10 6 46 23 10 6 34 17
12 6 60 30 12 6 48 22
14 6 76 38 14 6 52 26
16 6 96 48 16 6 64 32
18 6 118 59 18 6 76 38
20 6 136 68 20 6 96 48
22 6 166 83 22 6 110 55
24 6 190 95 24 6 126 63