IRC 2021 · Model
Chapter 29: Encroachments Into Public Right Of Way
27 sections in this chapter of the IRC 2021 model text — not Model's amended edition.
2903.7 Size of water-service mains, branch mains and risers The size of the water service pipe shall be not less than 3/4 inch (19 mm) diameter. The size of water service mains, branch mains and risers shall be determined from the water supply demand [gpm (L/m)], available water pressure [psi (kPa)] and friction loss caused by the water meter and developed length of pipe [feet (m)], including equivalent length of fittings. The size of each water distribution system shall be determined according to design methods conforming to…
- Water Service & Distribution Sizing — IRC P2903.3.1, IRC P2903.1, Table P2903.1
- Thermal Expansion Control — IRC P2903.4, IRC P2903.4.2
- Laundry Standpipe & Washer Box — IRC P2706.1.2, IRC P2706.1.2
- 2903.7Size of water-service mains, branch mains and risers
- 2903.8Gridded and parallel water distribution systems
- 2903.9Valves
- P2501.2Application
- P2901.1Potable water required
- P2902.1General
- P2902.2Plumbing fixtures
- P2902.4Protection of potable water outlets
- P2902.5Protection of potable water connections
- P2903.1Water supply system design criteria
- P2903.2Maximum flow and water consumption
- P2903.3Minimum pressure
- P2903.3.1Pumps handling drinking water
- P2903.4Thermal expansion control
- P2903.5Water hammer
- P2904.1General
- P2905.1Heated water circulation systems and heat trace systems
- P2905.2Demand recirculation systems
- P2906.1Soil and groundwater
- P2906.2Lead content
- P2906.4Water service pipe
- P2906.5Water distribution pipe
- P2906.6Fittings
- P2907.1Bends
- P2908.1General
- P2910.1Scope
- P2911.1General
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