OBC 2006 › Division B
7.6.3.
Version 0 — in force 31 December 2006
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- Edition
- OBC_2006
- Division
- B
- Provision
- 7.6.3.
- Version
- v0
(1) This Regulation comes into force on December 31, 2006.
Read directly from the regulation's own commencement section.
O. Reg. 350/06 · commencement 2.2.1.1(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
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Tell us what is wrong and we will verify & correct our mapping.
- Edition
- OBC_2006
- Division
- B
- Provision
- 7.6.3.
- Version
- v0
(1) This Regulation comes into force on December 31, 2006.
Read directly from the regulation's own commencement section.
O. Reg. 350/06 · commencement 2.2.1.1(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
Provenance
OBC 1997 · continues from 7.6.3. — Pro
Base · O. Reg. 350/06 · ext← current
Original — base regulation
OBC 2012 · continues as 7.6.3. — Pro
7.6.3. — Size and Capacity of Pipes
Content not available for this version.
7.6.3.1. — Design
(1) Except as permitted in Sentences (2) and (3), the size of every pipe in a water distribution system that supplies water to a fixture or device and the flow pressures at the supply openings shall be designed to provide peak demand flow in conformance to Table 7.6.3.1.
(2) A tail piece or connector not more than 750 mm long and not less than ¼ in. inside diameter may be used to supply water to a fixture or device.
(3) A water distribution system that serves not more than a single dwelling unit does not need to conform to Column 3 of Table 7.6.3.1.
(4) No water system between the point of connection with the water service pipe or the water meter and the first branch that supplies a water heater, shall be less than ¾ in. size.
(5) Every pipe that supplies a fixture shall have a capacity that will produce a flow in the fixture that will flush the fixture and keep it in a sanitary condition.
Text · e-Laws consolidated snapshot
Column 1 | Column 2 | Column 3 | Column 4 | Column 5 |
Fixture or Device | Minimum Size of Supply Pipe, in. | Minimum Flow Pressure(1) kPa (gauge) | Hydraulic Load, fixture units | |
Private Use | Public Use | |||
Bathroom group | ||||
(a) with flush tank | NA | NA | 6 | - |
(b) with direct flush valve | NA | NA | 8 | - |
Bath tub (with or without shower) | ½ | 50 | 2 | 4 |
Clothes washer | ½ | 100 | 3 | - |
Cup Sink | ½ | 50 | - | 4 |
Dishwasher, domestic | ½ | 100 | 3 | - |
Drinking fountain | 3/8 | 100 | - | 1 |
Hose bib or wall hydrant | ½ | 100 | (2) | (2) |
Laundry tray: 1, 2 or 3 compartments | ½ | 100 | 2 | 4 |
Lavatory | 3/8 | 50 | 1 | 2 |
Shower, single head | ½ | 50 | 2 | 4 |
Sink | ||||
(a) kitchen, domestic | ½ | 50 | 2 | - |
(b) kitchen, commercial | ½ | 50 | - | 4 |
(c) service, slop | ½ | 50 | - | 3 |
(d) service with direct flush valve | ¾ | 100 | - | 5 |
Urinal | ||||
(a) with flush tank | ½ | 50 | - | 3 |
(b) with direct flush valve | ¾ | 100 | - | 5 |
(c) with self closing metering valve | ½ | - | - | - |
Water closet | ||||
(a) with flush tank | 3/8 | 50 | 3 | 5 |
(b) with direct flush valve | 1 | 100 | 6 | 10 |
Notes to Table 7.6.3.1.:
(1)Measured immediately upstream of faucet or supply valve.
(2)A continuous load of 0.38 L/s.
7.6.3.2. — Hydraulic Load
(1) Except as provided in Sentence (3), the hydraulic load of a fixture or device that is listed in Table 7.6.3.1.v1 shall be the number of fixture units given in the Table.
(2) Except as provided in Sentences (1) and (3), the hydraulic load of a fixture that is not listed in Table 7.6.3.1.v1 is the number of fixture units listed in Table 7.6.3.2.
(3) Where fixtures are supplied with both hot and cold water, the hydraulic loads for maximum separate demands shall be 75% of the hydraulic load of the fixture units given in Tables 7.6.3.1.v1 and 7.6.3.2. when using a detailed engineering design method.
Text · e-Laws consolidated snapshot
Column 1 | Column 2 | Column 3 |
Size of Supply Pipe, in. | Hydraulic Load, fixture units | |
Private Use | Public Use | |
3/8 | 1 | 2 |
½ | 2 | 4 |
¾ | 3 | 6 |
1 | 6 | 10 |
7.6.3.3. — Static Pressure
(1) Where the static pressure at any fixture may exceed 550 kPa, a pressure reducing valve conforming to Article 7.2.10.12. shall be installed to limit the maximum static pressure at the fixture to 550 kPa.
Text · e-Laws consolidated snapshot
7.6.3.4. — Size
(1) Every water service pipe shall be sized according to the peak demand flow but shall not be less than ¾ in. size.
Text · e-Laws consolidated snapshot
Provenance
OBC 1997 · continues from 7.6.3. — Pro
Base · O. Reg. 350/06 · ext← current
Original — base regulation
OBC 2012 · continues as 7.6.3. — Pro