Use and Care Manual
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
65
Figure 2
Dimensions for 1/2-14 NPSM shanks
(See Clause 4.4.7.)
1/2-14 NPSM
Maximum thread lead of
2.0 mm (0.079 in)
13.1 to 13.4 mm
(0.515 to 0.528 in)
diameter
14.4 to 15.2 mm
(0.565 to 0.600 in)
diameter
15 ± 0.5
°
a) Shank with coupling nut and tailpiece connecon
1/2-14 NPSM
1/2 nominal size
copper water tube
Maximum thread lead of
2.0 mm (0.079 in)
b) Shank with 1/2 nominal size copper water tube connection