Specification
Table Of Contents
- Preface
- 1 Scope
- 2 Reference publications
- 3 Definitions and abbreviations
- 4 Design requirements
- 4.1 Supply fittings
- 4.2 Servicing
- 4.3 Installation
- 4.4 Threaded connections
- 4.5 Connections other than threaded connections
- 4.6 Accessible designs
- 4.7 Backflow prevention
- 4.8 Cover plates and escutcheons
- 4.9 Toxicity and lead content
- 4.10 Frost-proof faucets and hydrants
- 4.11 Showerheads, body sprays, and hand-held showers
- 4.12 Cross-flow
- 4.13 Fittings incorporating electrical features
- 4.14 Materials
- 4.15 Automatic compensating valve temperature control
- 4.16 Lawn faucets
- 4.17 Flexible water connectors
- 4.18 High-efficiency commercial pre-rinse spray valves
- 4.19 Household hot water dispensers with storage electrical heating systems
- 5 Performance requirements and test procedures
- 5.1 General
- 5.2 Coatings
- 5.3 Pressure and temperature
- 5.4 Flow rate
- 5.5 Operating requirements
- 5.6 Life cycle
- 5.7 Resistance to installation loading
- 5.8 Resistance to use loading
- 5.9 Backflow prevention
- 5.10 Lawn faucets
- 5.11 Alternative materials test
- 5.12 High-efficiency showerheads and hand-held showers
- 5.13 High-efficiency commercial pre-rinse spray valves
- 6 Markings, packaging, and installation instructions
- Annex A (informative) Unit conversion and rounding criteria
- Annex B (normative) Tests by fitting type
ASME A112.18.1-2018/CSA B125.1-18 Plumbing supply fittings
July 2018 © 2018 Canadian Standards Association
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4.8 Cover plates and escutcheons
4.8.1
The cover plates of deck-mounted lavatory and sink supply fittings shall have the dimensions indicated
in Figure 1, except as specified in Clause 4.8.2.
Note: Refer to the appropriate fixture standards for the minimum mounting surface dimensions.
4.8.2
Concealed and deck-mounted supply fitting bodies or their escutcheons shall be capable of concealing a
circular area with a diameter of not less than 44 mm (1.73 in).
4.9 Toxicity and lead content
4.9.1
Fittings covered by this Standard shall comply with the applicable requirements of NSF/ANSI 61.
4.9.2
Solders and fluxes in contact with potable water shall not exceed, by mass, 0.2% lead content. Metal
alloys in contact with potable water shall not exceed 8% lead content.
4.9.3
Fittings intended to convey or dispense water for human consumption through drinking or cooking shall
not contain a weighted average lead content in excess of 0.25% when evaluated in accordance with the
test method specified in NSF/ANSI 372.
4.10 Frost-proof faucets and hydrants
Frost-proof faucets and hydrants shall comply with the performance requirements of this Standard.
Devices with integral backflow protection shall comply with CAN/CSA-B64 Series or ASSE 1019.
4.11 Showerheads, body sprays, and hand-held showers
4.11.1 General
When used as a component part of a showerhead, body spray, or hand-held shower assembly, the flow-
restricting inserts shall be mechanically retained at the point of manufacture. For the purpose of this
requirement, the term “mechanically retained” shall mean that a force of 36 N (8.0 lbf) or more is
required to remove the flow-restricting insert. This requirement shall not apply to showerheads that
would cause water to leak significantly from areas other than the spray face if the flow-restricting insert
were removed.
4.11.2 High-efficiency showerheads and hand-held showers
Note: Water-conserving showerheads do not necessarily have to comply with the high-efficiency requirements
specified in Clause 5.12 if they are not designated as high-efficiency showerheads.
4.11.2.1
If the high-efficiency showerhead or hand-held shower has more than one mode
a) all modes shall comply with the maximum flow rate requirements specified in Clause 5.12.2.1;
b) all modes shall comply with the minimum flow rate requirements specified in Clause 5.12.2.2.1;
and