ASME A112.19.2:2008 pdf free download

ASME A112.19.2:2008 pdf free download.Ceramic plumbing fixtures.
0.3
Harmonization activibes for plumbing fixtures Standards were undertaken in 2004 by a )oint Harmonization Task Group (JI-ITG) on Plumbing Fixtures, in which the ASME and CSA plumbing fixtures committees were equally represented. The responsibility for procedural matters and final approval of technical content was assumed by technical committees at higher levels within each SDO.
I Scope
1.1
This Standard covers vitreous and non-vitreous china plumbing fixtures and speof.es requirements for materials, construction, performance, testing, and markings. This Standard’s performance requirements and test procedures apply to all types of water closets and urinals that discharge into gravity drainage systems in permanent buildings and structures, independent of occupancy.
This Standard covers the following plumbing fixtures:
(a) bathtubs;
(b) bidets;
(C) drinking fountains;
(d) fixtures for institutional applications;
(e) lavatories;
(f) shower bases;
(g) sinks:
(I) laboratory sinks;
(ii) laundry sinks;
(iii) service sinks; and
(iv) utility sinks;
(h) urinals; and
(I) water closets
4.9 Additional requirements for bathtubs and shower bases
4.9.1 Minimum dimensions for bathtubs
The minimum dimensions for bathtubs shall be as shown in Figure 8.
4.9.2 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 outlet.
4.9.3 Flanges
Bathtubs and shower bases intended for insallation against a wall shall incorporate a continuously raised
flange or bead at least 8 mm (0.3 in) above the rim. The raised 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 6.5. Fixtures using elr-ntalledl flanges
shall be marked in accordance with Clause 9.4 and shall include all necessary parts and fasteners.
4.10 Additional requirements for drinking fountains
4.10.1
Drinking fountains shall
(a) include a supply ftting, which shall be at least 25 mm (1.0 in) above the food level rim; and
(b) comply with the dimensions shown in Figure 9.
Note: Drinking fountain supply ftingsg are also known as drinking fountain bubblers
4.10.2
Factoy-supplied drinking fountain supply fttings shall comply with ASME A1 12.18.1/CAN/CSA-B125.1,
including the toxicity requirements.
4.11 Accessible design fixtures
Fixtures designed to be acessible shall comply with the dimensional requirements specified in
CAN/CSA-B651 or ICC/ANSI A117.1.
5 Flushing devices
5.1 General
5.1.1
Flushing devices shall deliver water at a suficient rate and quantity to permit water dlosets and urinals to comply with the hydraulic performance requirements of this Standard. Gravity flush tanks, pressurized flushing devices, and other flushing methods may be used.
5.1.2
Air gaps, vacuum breakers, or other backlow preventers shall be intalled above the overflow or flood level of the fixture. Alternatively, spill openings to the outside of the flush tank shall be provided as required by Clause 5.2.4 or 5.3.2.
5.2.2 Fill valve opening diameter and location
The fill valve opening shall have the diameter shown in Figure 10 but may be located on either side of the flush tank
5.2.3 CrItical level
The critical level (CL) mark n the fill valve shall be at Iea 25 mm (1.0 in) above the flush tank overflow.
5.2.4 Low-profile gravity tanks
When the critical level of the fill valve in low-profile gravity tank water closets is below the flood level of the bowl rim, auxiliary spill openings shall be provided to ensure that the water in the tank will drain to the floor if the overflow is clogged or the trap is blocked. The size and pos4tion of these openings shall be such that with the fill valve at the lull open posation and the water pressure at maximum, no water shall rise to the critical level of the fill valve,
5.3 Pressurized flushing devices
5.3.1 General
Pressurized flushing devices shall comply with CAN/CSA-B1 25.3 or ASSE 1037. The critical level of the lowest anti-siphon device in a flushometer-valve-activated water closet shall be at least 25 mm (1.0 in) above the flood level of the water closet bowl rim.
5.3.2 Low-profile tanks with pressurized flushing devices
When the critical level of the pressurized flushing device in low-profile tank water closets is below the flood level of the bowl rim, auxiliary spill openings shall be provided to ensure that the water in the tank will drain to the floor if the overflow is clogged or the trap is blocked, The size and position of these openings shall be such that with the pressurized flushing device at the full open position and the water pressure at maximum, no water shall rise to the critical level of the pressurized flushing device.