TUBING THREAD GAUGES
Tubing thread gauges are measuring tools for checking connection threads of oil tubing and couplings. Based on the type of oil tubing, the gauges are classified into non-upset tubing thread (TBG) and external-upset tubing thread (UP TBG).
TECHNICAL PARAMETERS OF TUBING THREAD GAUGES
External-upset thread gauges | ||
Specification in(mm) | Number of Tthreads/in(Pitch) | Taper(in/ft) |
1.050(26.7) | 10(2.54) | 1:16(3/4) |
1.315(33.4) | 10(2.54) | 1:16(3/4) |
1.660(42.2) | 10(2.54) | 1:16(3/4) |
1.990(48.3) | 10(2.54) | 1:16(3/4) |
2 3/8(60.3) | 10(2.54) | 1:16(3/4) |
2 7/8(73) | 10(2.54) | 1:16(3/4) |
3 1/2(88.9) | 10(2.54) | 1:16(3/4) |
4(101.6) | 8(3.175) | 1:16(3/4) |
4 1/2(114.3) | 8(3.175) | 1:16(3/4) |
External-upset thread gauges | ||
Specification in(mm) | Number of Threads/in(Pitch) | Taper(in/ft) |
1.050(33.4) | 10(2.54) | 1:16(3/4) |
1.315(37.3) | 10(2.54) | 1:16(3/4) |
1.660(46.0) | 10(2.54) | 1:16(3/4) |
1.990(53.2) | 10(2.54) | 1:16(3/4) |
2 3/8(65.9) | 8(3.175) | 1:16(3/4) |
2 7/8(78.6) | 8(3.175) | 1:16(3/4) |
3 1/2(95.3) | 8(3.175) | 1:16(3/4) |
4(107.9) | 8(3.175) | 1:16(3/4) |
4 1/2(120.6) | 8(3.175) | 1:16(3/4) |
TECHNICAL PARAMETERS OF DRILL PIPE THREAD GAUGES
IU drill pipe thread gauges | ||
Specification in(mm) | Number of Threads/in(Pitch) | Taper(in/ft) |
2 3/8DP | 8(3.175) | 1:16(3/4) |
2 7/8DP | 8(3.175) | 1:16(3/4) |
3 1/2DP | 8(3.175) | 1:16(3/4) |
4DP | 8(3.175) | 1:16(3/4) |
4 1/2DP | 8(3.175) | 1:16(3/4) |
5DP | 8(3.175) | 1:16(3/4) |
5 1/2DP | 8(3.175) | 1:16(3/4) |
6 5/8DP | 8(3.175) | 1:16(3/4) |
EU drill pipe thread gauges | ||
Specification in(mm) | Number of Threads/in(Pitch) | Taper(in/ft) |
2 3/8UP DP | 8(3.175) | 1:16(3/4) |
2 7/8UP DP | 8(3.175) | 1:16(3/4) |
3 1/2UP DP | 8(3.175) | 1:16(3/4) |
4 UP DP | 8(3.175) | 1:16(3/4) |
4 1/2 UP DP | 8(3.175) | 1:16(3/4) |
5 1/2 UP DP | 8(3.175) | 1:16(3/4) |
