ASME A112.19.3-2017 pdf – Stainless steel plumbing fixtures
ASME A112.19.3-2017 pdf – Stainless steel plumbing fixtures.
4.4 Waste fitting openings, drainage, and overflows
4.4.1 Waste fitting openings and drainage
a) have a waste fitting opening (outlet), the centre of which shall be located at the lowest point of the fixture; and
b) drain to the waste outlet,
Except when proprietary (i.e., non-standard) waste fittings are provided by the manufacturer, the dimensions of waste outlets shall be as shown in Figure 1.
Factory-supplied waste fittings shall comply with ASME A112.18.2/CSA B125.2.
22.214.171.124 LavatorIes, sinks, and bidets
Overflows may be provided at the option of the manufacturer. When overflows are provided, the manner in which they are positioned shall be at the option of the manufacturer.
When provided, overflows in sinks intended for dishwashing and food preparation (e.g., kitchen and bar sinks) shall not be concealed and shall be accessible for disassembly and cleaning after installation.
Overflows shall comply with Clause 5.4.
Overflows in bathtubs may be provided at the option ot the manufacturer. When overflows are
provided, their dimension, location, and position in relation to the waste outlet In the fixture shall be as shown in Figure 7.
Variations in location, geometry, diameter, and angle of orientation of the overflow opening shall be acceptable when factory-provided waste and overflow fittings are used.
Note Some pIumbirq codes require bathtub overflows.
4.5 Additional requirements for water closets
Water closets and their flushing devices shall comply with the applicable requirements of ASME A112.19.2/CSA B45.1. except that the
a) structural integrity test shall be conducted in accordance with Clause 5.5.1; and b) minimum thickness requirements for vitreous china shall not apply.
4.6 AddItional requirements for urinals
Urinals and their flushing devices shall comply with the applicable requirements of ASME A112.19.2/ CSA 8.45.1, except that the
a) structural integrity test shall be conducted in accordance with Clause 5.5.3; and
b) minimum thickness requirements for vitreous china shall not apply.
4.7 Additional requirements for lavatories, sinks, and bidets
4.7.1 Openings and mounting surfaces for supply fittings
When provided, openings and mounting surfaces for lavatory, sink, and bidet supply fittings shall be as shown In FIgures 2 to 6, except when proprietary (I.e., non-standard) supply fittings are provided by the manufacturer.
Factory-supplied lavatory, sink, and bidet supply fittings shall comply with ASME A112.18.1/cSA B125.1.
Mounting surfaces for supply fittings that rely on an air gap for backflow protection shall be riot more than 13 mm (0.5 in) below the flood level rim.
Note: Care should be token to ensure that the mrnimum air gap specified in A.SME A112.18.1/CSA 8125.1 or In the applicable plumbing code is not compromised when supply fittings are installed on fixtures with mounting surfaces below the flood level rim.
4.7.2 Laundry or utility sink capacity
The minimum capacity of at least one compartment of a laundry or utility sink shall be 60 1(15.9 gal).
4.8 Additional requirements for bathtubs and shower bases
4.8.1 Minimum dimensions for bathtubs
The minimum dimensions for bathtubs shall be as shown In FIgure 7.
4.8.2 Slope to the waste outlet
Bathtubs and shower bases shall have a maximum slope of 4% to the waste outlet.
Note: There should be a minimum slope of 1% to the waste ourlet.
Bathtubs and shower bases intended for installation against a wall shall incorporate a flange raised at least 8 mm (0.3 In) above the rim. The flange shall be
a) integral with the bathtub or shower base;
b) added to an island tub or shower base in the factory; or
c) field installed using a flange kit that complies with Clause 5.3 and includes all necessary parts and fasteners.
Fixtures using field-installed flanges shall be marked Itt accordance with Clause 6.4.
Note: Flanges ore also referred to as beads.