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1308.5.7.2 Number of Threads

Los Angeles Mechanical Code > 13 Fuel Gas Piping > 1308.0 Gas Piping System Design, Materials, and Components > 1308.5 Acceptable Piping Materials and Joining Methods > 1308.5.7 Metallic Pipe Threads > 1308.5.7.2 Number of Threads
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Field threading of metallic pipe shall be in accordance with Table 1308.5.7.2. [NFPA 54:5.6.7.3]

TABLE 1308.5.7.2
SPECIFICATIONS FOR THREADING METALLIC PIPE
[NFPA 54: TABLE 5.6.7.3]
IRON PIPE
SIZE
(inches)		 APPROXIMATE LENGTH
OF THREADED
PORTION (inches)		 APPROXIMATE
NUMBER OF THREADS
TO BE CUT
1/2 3/4 10
3/4 3/4 10
1 7/8 10
11/4 1 11
11/2 1 11
2 1 11
21/2 11/2 12
3 11/2 12
4 15/8 13
For SI units: 1 inch = 25.4 mm

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