Lawton Tubes
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Standard Copper Tube

O.D. (inches)Wall (inches)Gauge (SWG)MWP in annealed condition at 100deg CMWP in supplied* condition at 100deg C
3/8”0.0322193108
1/2”0.036207891
1/2”0.04818102118
5/8”0.036206273
5/8”0.04196779
5/8”0.048188195
3/4”0.036205161
3/4”0.04195773
3/4”0.048186577
3/4”0.0641688102
7/8”0.04194655
7/8”0.048185566
7/8”0.064167588
7/8”0.10412125142
1.1/8”0.048184351
1.1/8”0.064165768
1.1/8”0.08147285
1.3/8”0.048183541
1.3/8”0.064164755
1.3/8”0.08145969
1.3/8”0.104127790
1.5/8”0.048182935
1.5/8”0.064163947
1.5/8”0.08144958
1.5/8”0.104126576
1.5/8”0.116117385
2.1/8”0.048182227
2.1/8”0.064163035
2.1/8”0.08143744
2.1/8”0.104124958
2.5/8”0.048181825
2.5/8”0.064162433
2.5/8”0.08143041
2.5/8”0.104123954
3.1/8”0.064162028
3.1/8”0.08142535
3.1/8”0.104123345
3.5/8”0.064161724
3.5/8”0.08142230
4.1/8”0.064161521
4.1/8”0.08141926
4.1/8”0.104122534

*Sizes 3/8 – 2 1/8” supplied in Half Hard, Sizes 2 5/8 – 4 1/8” supplied Hard

**Pressure rating as per BS 14276

Standard Copper Coiled Tube

O.D. (inches)Wall (inches)Gauge (SWG)MWP in annealed condition at 100deg C
1/40.02822125
5/160.0282298
5/160.03620129
3/80.0322181
1/20.0322169
5/80.0362061
3/4”0.0401954
7/80.0401946
ACR Working Pressures Data Sheet
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