Abstract： ASME B16.51:2011 pdf download.Copper and Copper Alloy Press-Connect Pressure Fittings. resistance of theelastomer to copper degradation. The test shall be conducted in accordance with para. 14.9.1 of this Standard. Upon completion of the te...

ASME B16.51:2011 pdf download.Copper and Copper Alloy Press-Connect Pressure Fittings.

resistance of theelastomer to copper degradation. The test shall be conducted in accordance with para. 14.9.1 of this Standard.

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 t. There shall be no visual degradation of the elastonieric material.

6.4 Seal 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.

B TUBE STOPS

Except for repair couplings, fittings shall be man ulaclured 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 (FEC) end having the minimum

outside diameter shown in Table 1 (Table I-I). Examples of various tube stop configurations are shown in Fig. 2.

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 I (tilsIe 1-1).

9.2 Out-of-Roundness of FittIng End (P or FTG)

Maximum out-of-roundness of the press-connect fitting ends, dimensions A and F, shall not exceed 1% of the maximum corresponding

diameters shown in Table I (Table 1-1). The average of the maximum and minimum diameters shall be within the dimensions shown in

Table I (Table I-I).

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