ASME B16.51-2013 pdf free
ASME B16.51-2013 pdf free.Copper and Copper Alloy Press-Connect Pressure Fittings.
6.1 Wrought Copper ALLoys
(a) Fittings shall be made from copper alloy UNS No.
C10200, C12000, C12200, or C23000.
(b) Other coppers and copper alloys shall be permitted. provided their chemical composition contains a minimum of 84% copper and a maximum of 16% 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 not inhibit joining to the tube or to other fittings.
6.2 Cast Copper ALLoys
(a) Castings intended for use in applications up to 204°C (400°F) shall be of a copper alloy produced to meet
(1) the requirements of ASTM B62 UNS No. C83600, or
(2) the chemical and tensile requirements of ASTM B584 tINS No. C83800 or C84400 and in all other respects the requirements of ASTM B62
(b) Castings intended for use in potable water applications up to 93°C (200°F) shall be low lead (0.25% or less) and shall be
(1) of a copper alloy produced to meet the requirements of ASTM 13584 UNS No. C87850 or C89833, or
(2) of other cast copper alloys, provided the fittings produced meet mechanical and corrosion-resistant propcities needed for potable water application.
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 (0.2 10 in.).
(cJ Z3 designates chloraminc 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 bea maximum of 6. There shall be no visual degradation of the elastomeric material.
(d) Z4 designates resistance of the elastomer to copper degradation. The test 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 be a maximum of 6. There shall be no visual degradation of the elastomeric material.
6.4 Seat Lubricant
The only seal lubricant that shall be used is that specified 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 (FTG) end having the minimum outside diameter shown in Table 9.1-1. Examples of various tube stop configurations are shown in Figure 8-1.ASME B16.51 pdf download.
