Home>ASME standards>ASME B16.22-2018 pdf free

ASME B16.22-2018 pdf free

ASME B16.22-2018 pdf free.Wrought Copper and Copper Alloy Solder-Joint Pressure Fittings.
out-of-roundness: maximum measured diameter minus minimum measured dianwter.
ovality: elliptical condition associated with out-of-roundness.
Each fitting shall be permanently marked with the manufacturer’s name or trademark in accordance with MSS SP-25. Marking on fittings smaller than size or on any fitting where it damages soldering surfaces is not required.
(a) Fittings shall be made from copper IJNS No. Cl 0200, C12000, or Cl 2200 or copper alloy UNS No. C23000, for which allowable stresses are Found In ASME B31.1, ASME 831.9, orASME Boilerand Pressure Vessel Code. Section II, Part D.
(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. For potable water applications, fittings shall be produced from low-lead (0.25% or less) copper alloys and shall meet all the mechanical and corrosion-resistant properties for the end purposes of the fittings. The composition of the copper alloy shall contain nothing that will inhibit joining to the tube or to other fittings.
Due to widely varying manufacturing processes, meaningful laying length requirements of fittings cannot be established. Consult the manufacturer for these dimensions.
Except for repair couplings, fittings shall be manufactured with a tube stop. Repair couplings shall not require a tube stop. The tube stop shall control joint length, even with an external (FTG) end having the minimum outside diameter shown in Table 3.1.1-1. Examples of various tube stop configurations are shown in Figure 8-1.
9.1 Convention
For determining conformance with this Standard, the convention for fixing significant digits where limits (maximum or minimum values) are specified shall be as defined in ASTM E29. This requires that an observed or calculated value be rounded oil to the nearest unit in the last right-hand digit used for expressing the limit. Decimal values and tolerances do not imply a particular method of measurement.
9.2 LInear Dimensions
An inspection tolerance, as shown in Table 9.2-1, 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 and solder- end-to-threaded-end dimensions on all fittings having external (FTG) solder ends.
Coupling inspection limits for shoulder-to-shoulder and shoulder-to-end dimensions shall be double those shown in Table 9.2-1. except that the minus tolerance applied to dimension L (see Figure 4.1-1) shall not result in a dimension smaller than 1.5 mm (0.06 in.).
The largest opening in the fitting shall govern the tolerance to be applied to all openings.
9.3 OvatIty of Fitting End (C or FTG)
Maximum ovality of the fitting solder-joint end shall not exceed 1% of the maximum diameters shown in Table 3.1,1-1, The average of the maximum and minimum diameters shall be within the dimensions shown in the Table.
9.4 Inside Diameter of Fitting
The minimum cross-sectional area of the inside diameter through the fitting body shall not be less than the theoretical minimum area defined by diameter o in Table 3.1.1-1. The out-of-roundness condition of the cross-sectional area shall not exceed the value shown in Table 3.1.1-1.
For reducer or adapter fittings, the smallest end diameter shall apply, provided that this diameter does not restrict the other outlets.ASME B16.22 pdf download.

Related PowerPoint Templates

Template Categories