Abstract： ASME B16.12:2009 pdf download.Cast Iron Threaded Drainage Fittings. 1.2 Applicability This Standard covers fittings intended fur use in gravity drainage systems subject only to the gravity head of waste liquids at temperatures from ambient...

ASME B16.12:2009 pdf download.Cast Iron Threaded Drainage Fittings.

1.2 Applicability

This Standard covers fittings intended fur use in gravity drainage systems subject only to the gravity head of waste liquids at

temperatures from ambient to approxiniately lOOU (212’F). The use of this Standard for pressuriied waste handling systems is the

responsibility of the user and is subject to the requirements of any applicable code.

1.3 QualIty Systems

Requirements relating to the product manufacturers’ Quality System Programs are described in Nonmandatorv Appendix A.

1.4 References

Standards and specifications adopted by reference in this Standard are shown in Mandatory Appendix I, which is part of this

Standard. It is not considered practical to identify the specific edition of each referenced standard and specification in the

text, when referenced. Instead, the specific editions of the referenced standards and specifications are listed in Mandatory

Appendix I.

2 SIZE

2.1 Nominal Pipe Size

The sue of the fittings scheduled in Tables I and 2 is identified by the corresponding nominal pipe sue. For reducing tees,

Y-hranches, or cresses. the largest run opening shall be given first, The straight-line sketches (Fig. I) illustrate how the

reducing fittings are read.

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