ASME B16.14:2010 pdf free download

ASME B16.14:2010 pdf free download.Ferrous Pipe Plugs,Bushings, and Locknuts With Pipe Threads.
(b) size
(C) marking
(d) materials
(e) dimensions and tolerances
(f) threading
(g) pattern taper
(10) 2 GENERAL
2.1 References
Standards and specifications adopted by reference are shown in Mandatory Appendix II. It is not considered practical to identify the edition of each referenced standard and specification in the text. Instead, the editions of the referenced standards and specifications are listed in Mandatory Appendix II.
2.2 Quality Systems
Requirements relating to the product manufacturer’s quality system programs are described in Nonmandatory Appendix A.
2.3 Relevant Units
This Standard states values both in metric units and US. Customary units. These systems of units are to be regarded separately. The US. Customary units are shown in parentheses or in separate tables. The values in these separate tables are not exact equivalents; therefore, it is required that each system of units be used independently of the other. Combining values from the two systems constitutes nonconformance with the Standard.
2.4 Service Conditions
Criteria for selection of materials suitable for particular fluid service are not within the scope of this Standard.
2.5 Convention
For determining conformance with this Standard, the convention for fixing significant digits where limits and maximum and minimum values are specified shall be rounded as defined in ASTM F 29.
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, morgings, 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 I.
(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).
(a) An outside head bushing is one having any part of the polygon protruding beyond the outside diameter of the large end of the external thread.
(ii) An inside head bushing is one having all parts of the polygon head contained within the root diameter of the large end of the external thread.
(c) A face bushing is one having two lugs on the face of the large end of the external thread by which a bar can be used for makeup with internal pipe threads. Lugs are optional on face bushings in small pipe sizes when made of bar stock.
8.4 Locknuts
Locknuts shall be tapped with straight pipe threads in accordance with ANSI/ASME 131.20.1.
9 PATTERN TAPER
Plug squares or hexagons, raised or countersunk, may have opposite sides tapered a maximum of 4 deg total.