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NFPA 15 Question

Question asked by fernando_akamine on Sep 10, 2020
Latest reply on Sep 11, 2020 by cdafd

5.5.1.2* Steel pipe with wall thicknesses less than Schedule 30 [in pipe sizes 8 in. (200 mm) and larger] or Schedule 40 [in
pipe sizes less than 8 in. (200 mm)] shall not be joined by threaded fittings.

 

How can interpretate this in table A5.3.2? Is it refer to thos wall thicknesses in bold?

 

Schedule 30 Schedule 40
Inside DiameterWall ThicknessInside DiameterWall Thickness
inmminmminmminmm
----1,04926,60,1333,4
----1,38035,10,143,6
----1,61040,90,1453,7
----2,06752,50,1543,9
----2,46962,70,2035,2
----3,06877,90,2165,5
----3,54890,10,2265,7
----4,026102,30,2376
----5,047128,20,2586,6
----6,065154,10,287,1
8,0712050,2777----
10,140 257,60,307 7,8 - - - -

 

Thank you

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