ASME A112.19.3:2017 pdf download

ASME A112.19.3:2017 pdf download Stainless steel plumbing fixtures
4 General requirements
4.1 Materials
with the exception of laboratory sinks, which shall be made of type 316 stainless steel alloy, stainlesssteel plumbing fixtures shall be made of type 201,202,301,302,304,316, or 430 stainless steel alloys.Note: These stainless steel alloy types are specified in ASTM A240/A240M.
4.2 Stainless steel thickness
4.2.1 Lavatories and sinks4.2.1.1 General
The thickness of stainless steel sheet for lavatories and kitchen, bar, laboratory, laundry, and utility sinksshall comply with Clause 4.2.1.2 (before drawing) or 4.2.1.3(after drawing).
4.2.1.2 Before drawing
The minimum thickness shall be based on bowl depth as specified in Table 1.4.2.1.3 After drawing
The minimum thickness after fabrication shall be as follows:a)vertical surfaces: 0.559 mm (0.022 in);
b)corners: 0.508 mm (0.020 in); and
c)horizontal surfaces: 0.635 mm (0.025 in).
For ltems a) and b), the thickness shall be determined by taking the average of six measurements ofsurface or corner thickness. For ltem c), thickness shall be determined by taking the average of threemeasurements from the bottom of the fixture and three from the flat surfaces of the flange.
4.2.2 Other fixtures
The thickness of stainless steel sheet for fixtures not specified in Clause 4.2.1.1 shall be determined inaccordance with Clause 4.2.1.3.
4.3 Tolerances
Unless otherwise specified in this Standard, the tolerance on dimensions of 200 mm (8 in) and greatershall be ± 3%.The tolerance on dimensions less than 200 mm (8 in) shall be ±5%.
In this Standard, dimensions specified as “minimum” or “maximum”shall not be reduced below thespecified minimum or increased above the specified maximum by application of a tolerance. lf a
dimensional range is specified and the word “minimum”or “maximum”does not appear, the upper andlower limits shall not be considered critical and the appropriate tolerance shall apply.
4.4 Waste fitting openings, drainage, and overflows4.4.1 Waste fitting openings and drainage
4.4.1.1
Fixtures shall
a)have a waste fitting opening (outlet), the centre of which shall be located at the lowest point of thefixture; and
b)drain to the waste outlet.
4.4.1.2
Except when proprietary (i.e., non-standard) waste fittings are provided by the manufacturer, thedimensions of waste outlets shall be as shown in Figure i.
4.4.1.3
Factory-supplied waste fittings shall comply with ASME A112.18.2/CSA B125.2.4.4.2 Overflows
4.4.2.1 Lavatories, sinks, and bidets
4.4.2.1.1
Overflows may be provided at the option of the manufacturer. When overflows are provided, themanner in which they are positioned shall be at the option of the manufacturer.
4.4.2.1.2
When provided, overflows in sinks intended for dishwashing and food preparation (e.g., kitchen and barsinks) shall not be concealed and shall be accessible for disassembly and cleaning after installation.
4.4.2.1.3 Performance
Overflows shall comply with Clause 5.4.
4.4.2.2 Bathtubs
Overflows in bathtubs may be provided at the option of the manufacturer. When overflows are
provided, their dimension, location, and position in relation to the waste outlet in the fixture shall be asshown in Figure 7.
Variations in location, geometry, diameter, and angle of orientation of the overflow opening shall beacceptable when factory-provided waste and overflow fittings are used.
Note: Some plumbing codes require bathtub overflows.
4.5 Additional requirements for water closets
Water closets and their flushing devices shall comply with the applicable requirements ofASME A112.19.2/CSA B45.1,except that the
a)structural integrity test shall be conducted in accordance with Clause 5.5.1; andb)minimum thickness requirements for vitreous china shall not apply.