ASME B16.18:2001 pdf free download

ASME B16.18:2001 pdf free download.CAST COPPER ALLOY SOLDER JOINT PRESSURE FITTINGS.
1.4 References
Standards and specifications adopted by reference in this Standard are shown in Nonmandatory Annex D, which is part of this Standard. It is not considered practical to identify the specific edition of each standard and specification in the individual references, Instead, the specific edition reference is identified in Nonniandatory Annex 1).
1.5 Quality System
Requirements relating to the prLNiuct manufacturer’s Quality Syste,u Programs are described in Nonmandatory Annex F.
2 PRESSURE-TEMPERATURE RATiNGS
2.1 Rating of Fitting and of Joint
The internal working-pressure-temperature rating for a solder joint fitting is dependent not only on fitting and tube strength. but also on the composition of the solder used for the joint and selection of valves and appurtenances.
The intcrnal working-pressure ratings of the system shall be the lowest of the values shown in Table I and Nonmandatory Annex A. and those of the tube. valves, or appurtenances.
Pressure-temperature ratings for solder loints to the dimensions of Table 3, made with typical commercial solders, are given in Nonmandator Annex A.
2.2 Bursting Strength
When tested at 73°F±5°F (23°C±2°C) fittings manufactured to this standard shall have an ambient-temperature bursting strength of at least four times the IOOF (38C) internal working-pressure rating as shown in Table I.
8.1 Linear Dimensions
An inspection tolerance as shown in Table 2 shall be allowed on center-to-shoulder, center-to-center. cen(er-to-threaded end, and shoulder-to-threaded end dimensions on all fittings having female solder (solder cup ends, and on Center-to-solder end and solder-to- threaded end dimensions on all fittings having male solder (litting) ends.
Coupling inspection limits for shoulder-to-shoulder and shoulder-to-end dimensions shall be double thosc shown in Table 2, except that the minus tolerance applied to dimensions M. N, and W. and Tables 7 and 117 shall not result in a dimension less than 0.06 in. (1.5 mm) for sizes /4 through I in.. inclusive, or a dimension less than 0.09 in. (2.3 mni for the larger sizes.
The largest opening in the fitting governs the tolerance to be applied to all openings.
Tables 3 through 19 offer dimensions for pressure fittings covered by this standard.
8.2 Ovality
Maximum ovality shall not exceed 1% of the maxiniuin diameters shown in Table 3 or Table 83. The average of the maximum and minimum diameters must he within the dimensions shown in the table.
8.3 Gaging of Solder Joint Ends
8.3.1 Standard Gaging Method. The standard method ot gaging the diameter tolerances for male and female ends shall be by the use of plain plug and ring gages designed to hold the product within the limits established in Table 3 or 83.