ASME B16.14:2010 pdf download.Ferrous Pipe Plugs,Bushings, and Locknuts With Pipe Threads.
5 MARKING
Each fitting shall be marked for identification with the manufacturer’s name or trademark, except where a marking is impractical.
6 MATERIALS
(a) These fittings are furnished in gray iron, malleable iron, ductile iron, or steel as indicated in the individual tables.
(b) The chemical and mechanical properties of cast material shall equal or exceed those properties listed in ASTM A 126, as applicable. Steel castings, forgings, or machined bar properties shall correspond to the comparable ASTM casting material specifications. The fittings manufacturer shall be prepared to certify conformance based on test data.
7 DIMENSIONS AND TOLERANCES
(a) Dimensions in metric units are given in Tables I through 5 for various types of fittings, Corresponding U.S. Customary values are given in Tables I-i through 1-5 in Mandatory Appendix 1.
(b) At no point in the component wall shall the metal thickness be less than 90% of the values listed in the tables.
8 THREADS
8.1 Thread Form
Threads shall be in accordance with ANSI/ASME B1.20.I. All internal taper pipe threads shall be countersunk a distance not less than one-half the pitch of the thread at an angle of approximately 45 deg with the axis of the thread. External taper pipe threads shall be chamfered at an angle between 30 deg and 45 deg with the axis. Countersinking and chamfering shall be concentric with the threads.
(a) The length of threads specified in the tables shall include the countersink or chamfer.
(b) The maximum allowable variation in the alignment of threads of all openings shall be 5.0 mm/m (0.06 in./ft).
Each fitting shall be marked for identification with the manufacturer’s name or trademark, except where a marking is impractical.
6 MATERIALS
(a) These fittings are furnished in gray iron, malleable iron, ductile iron, or steel as indicated in the individual tables.
(b) The chemical and mechanical properties of cast material shall equal or exceed those properties listed in ASTM A 126, as applicable. Steel castings, forgings, or machined bar properties shall correspond to the comparable ASTM casting material specifications. The fittings manufacturer shall be prepared to certify conformance based on test data.
7 DIMENSIONS AND TOLERANCES
(a) Dimensions in metric units are given in Tables I through 5 for various types of fittings, Corresponding U.S. Customary values are given in Tables I-i through 1-5 in Mandatory Appendix 1.
(b) At no point in the component wall shall the metal thickness be less than 90% of the values listed in the tables.
8 THREADS
8.1 Thread Form
Threads shall be in accordance with ANSI/ASME B1.20.I. All internal taper pipe threads shall be countersunk a distance not less than one-half the pitch of the thread at an angle of approximately 45 deg with the axis of the thread. External taper pipe threads shall be chamfered at an angle between 30 deg and 45 deg with the axis. Countersinking and chamfering shall be concentric with the threads.
(a) The length of threads specified in the tables shall include the countersink or chamfer.
(b) The maximum allowable variation in the alignment of threads of all openings shall be 5.0 mm/m (0.06 in./ft).
