ASME B16.51:2018 pdf free download

ASME B16.51:2018 pdf free download.Copper and Copper Alloy Press-Connect Pressure Fittings.
The special requirements shall be as follows:
(a) ZI designates compliance with NSF/ANSI 61.
(b) Z2 designates the compression set. The maximum compression set shall be 45% when compressed 2.62 mm (0.103 in). 40% when compressed 3.53 mm (0.139 in). and 35% when compressed 5.33 mm (0.210 in.).
(c) Z3 designates chloramine resistance, which Is determined by testing for 1 008 h at 70°C (158°F) in a solution containing 50 ppm total chlorine, per ASTM D6284; this shall be checked and refreshed daily. Upon completion of the test, the change In volume shall be less than 30%, and the change in durometer hardness shall be a maximum of 6. There shall be no visual degradation of the elastomeric material.
(d) Z4 designates resistance of the elastomer to copper degradation. The Lest shall be conducted in accordance with para, 14.9.1. Upon completion of the test, the change in volume shall be less than 30%, and the change in durometer hardness shall he a maximum of 6. There shall be no visual degradation of the elastomeric material.
6.4 SeaL Lubricant
The only seal lubricant that shall be used is that sped- fled by the manufacturer.
7 LAYING LENGTHS
Due 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 (abutment) to limit tube insertion. Repair couplings shall not require a tube stop. The tube stop shall control Joint length, even with an external (FTC) end having the minimum outside diameter shown in Table 9.1-1. Examples of various tube stop configurations are shown in Figure 8.1.
9 DESIGN
9.1 GeneraL
As a minimum, the fitting shall be designed to withstand the tests specified in section 14 without leakage. The press•connect ends shall be assembled in accordance with the fitting manufacturer’s installation instructions. The dimensions and tolerances of the press-connect ends shall be as shown In Table 9.1.1.
9.2 Out-of-Roundness of Fitting End (P or FIG)
Maximum out-of-roundness olthe press-connect tilting ends, dimensions A and F, shall not exceed 1% of the maximum corresponding diameters shown in Table 9.1-1. The average of the maximum and minimum diameters shall be within the dimensions shown in Table 9.1-1.
9.3 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 9.1-1. The out-of-roundness condition of the cross-sectional area shall not exceed 10% of the minimum dameLer shown in Table 9.1-1,
For reducer or adapter fittings, the smallest end diameter shall apply, provided that this diameter does not restrict the other outlets.