Plumbing specification guide for pipes and fittings

Printable version

1. GENERAL

1.1 References

1- ASTM B32-89, Specification for Solder Metal

2- ASTM B306-88, Specification for Copper Drainage Tube (DWV)

3- ASTM C564-88, Specification for Rubber Gaskets for Cast Iron Soil Pipe and Fittings

4- CSA B67-1972, Water distribution pipes, drain pipes, traps, bends and accessories, made of lead.

5- CAN/CSA-B70-M91, Cast iron soil pipes, fittings and means of joining.

6- CAN/CSA-B127.1-99, Asbestos cement drain, waste and vent pipe and pipe fittings.

7- CAN/CSA-B-602-99, Mechanicals couplings for drain, waste and vent pipes.

8- CAN/CSA-B125-M89, Sewage fixtures and accessories.

2. PRODUCTS

2.1 Copper Pipe and related fittings

1- Sewage evacuating pipes, rainwater evacuating pipes & vents, DWV type, intended for above ground installation, and related fittings conform to ASTM B306 standard.
         .1 - Fittings
                 .1Cast brass fittings conform to CAN/CSA-B125 standard.
                 .2Forged copper fittings conform to CAN/CSA-B125 standard.

2- Lead-tin welds 50/50, conform to ASTM B32 standard, of 50A type.

2.2 Iron pipe and related fittings

1- Sewage evacuating pipes, rainwater evacuating pipes & vents , cast iron, equal or superior to DN3 nominal diameter, intended for underground installation, and related fittings conform to CAN/CSA-B70 standard with a protective undercoating.
         .1 - Joints
                 .1 - Mechanical Joints
                         .1 - Neoprene washers or butyl rubber, conform to ASTM C564 or CAN/CSA-B602 standards.
                         .2 - Stainless steel clamp collar
                 .2 - Interlocking Joints
                        .1 - Leaded joints : conform to CSA B67 standard.
                         .2 - Impermiable products to be applied cold.

2- Sewage evacuating pipes, rainwater evacuating pipes & vents , cast iron, equal or superior to DN3 nominal diameter, intended for above ground installation, and related fittings conform to CAN/CSA-B70 standard.
         1 - Joints
                 .1 - Interlocking Joints
                         .1 - Leaded joints : conform to CSA B67 standard.
                 .2 - Mechanical Joints
                         .1 - Neoprene washers or butyl rubber with stainless steel clamp collar, conform to CAN/CSA-B602 standards.

2.3 Galvanized steel pipe schedule 40

1- Pipe is required where lift pumps are concerned (sewage and/or rainwater). For fixtures and accessories (type Victaulic). See fixture section

2- Location : Backsiphonage from pumps to be connected to underground drainage system.

3. EXECUTION

3.1 Installation

1- Except if otherwise indicated, install elements in conformity to the requirements of the National Plumbing Code - Canada.
2- Install the underground piping embedded in clean, washed sand 150mm in thickness, shaping with the fittings and female end caps forms. Respect the slope, the line and the indicated levels. Fill up with a clean sand coating of 150 mm in thickness.
3- Install the above ground piping parallel to the walls and ceilings in order to reduce as less as possible the praticle volume of the room. Respect the indicated slope.
4- Widen the piping vents to a minimum 100mm in diameter on roof top.

3.2 Venting

1- Foresee a complete vented venting system on the sewage drainage system. The horizontal piping on the vents must have a slope of at least 1 mm per meter towards the drains.
2- Prolong the vents without size reduction for at least 600 mm above the rooftop and enlarge the diameter at that point. Make the diameter changes according to long tapered fittings.

3.3 Waterproof roof joints

1- In the case of piping crossing through the rooftop, achieve a watertight joint with copper foil 3kg by 1 m3 . The sheet must cover at least 500 mm of the rooftop on each side of the piping and prolong itself to the shoulder of the pipe and must curve into the pipe. Coordinate with the roofing trade for perfect waterproofed joints. The waterproof joints must conform to the ACNOR LRP-3 standard.