ASME B16.22:2001 pdf free download

ASME B16.22:2001 pdf free download.WROUGHT COPPER AND COPPER ALLOY SOLDER JOINT PRESSURE FTTINGS.
ASME B16.22 establishes specifications for wrought copper and wrought copper alloy. solder-joint, seamless fittings, designed for use with seamless copper tube conforming to ASTM B 88 (water and general plumbing systems). B 280 (air conditioning and refrigeration service), and B 819 (medical gas systems). as well as fittings intended to be assembled with soldering materials conforming to ASTM B 32. brazing materials conforming to AWS A5.8, or with tapered pipe thread conforming to ASME Bl.20.l.
This Standard is allied with ASME B 16.18. which covers cast copper alloy pressure fittings. It provides requirements for fitting ends suitable for soldering. This Standard covers:
(a) pressure—temperature ratings:
(b) abbreviations for end connections;
(c) size and method of designating openings of lit
(d) marking;
(e) material:
( dimensions and tolerances: and
(g) tests.
1.2 Convention
For the purpose of determining conformance with this Standard, the convention for fixing significant digits where limits (maximum or minimum values) are specified shall be rounding off as defined in ASTM E 29. This requires that an observed or calculated value shall be rounded off to the nearest unit in the las right- hand digit used for expressing the limit.
1.3 Units of Measure
The values stated in either SI (metric) or U.S. customary (in.-lb) units of measure shall be regarded separately as standard. Within the main text. SI units are given. For convenience, the customary units are shown in Mandatory Appendix II.
(b) Other coppers and copper alloys are permitted. provided they meet the chemical requirements of 84% minimum copper and 16% maximum zinc, and provided the fittings produced from the copper alloy meet all the mechanical and corrosion-resistant properties for the end purposes of the fittings. The composition of the copper alloy shall contain nothing (hat will inhibit joining to the tube or to other linings.
7 LAYING LENGTHS
[)ue to widely varying manufacturing processes. meaningful laying length requirements of fittings cannot be established. Consult the manufacturer for these dimensions.
8 TUBE STOPS
Except for repair couplings. fittings shall be manufactured with a tube stop. Repair couplings shall not require a lube stop. The tube stop shall control joint length. even with an external (FTG) end having the minimum outside diameter shown in Table 3 (Table 113). Examples of various tube stop configurations are shown in Fig. 2.
9 INSPECTION TOLERANCE
9.1 Linear Dimensions
An inspection tolerance. as shown in Table 2 (Table 112), shall be allowed on center-to-shoulder, center-to- center, center-to-threaded-end, and shoulder-to- threaded-end dimensions on all fittings having internal (C) solder ends, as well as on center-to-solder-end.