AS 4809:2017 pdf free.Copper pipe and fittings – Installation and commissioning.
1 SCOPE
This Standard specifies requirements for the selection, installation and commissioning of
copper plumbing. gas and waste water systems. Some aspects of design are also specified.
2 REFERENCED DOCUMENTS
A list of the documents referred to in this Standard, is given in Appendix A.
3 DEFINITIONS
For the purposes of this Standard, the definitions in AS/NZS 3500.0 and the one below apply.
3.1 Water hammer
A condition where a quick closing tap or valve closes against velocity of water at high pressure within a water supply system.
NOTE: A shock wave potentially in excess of 3 000 kPa can be created causing damage to not only the piping material but to appliances, tap ware and fittings.
4 PRODUCTS
4.1 Copper tube
4.1.1 General
Copper tubes shall be in accordance with AS 1432 with the sizes shown in Tables 4.1 to
4.4. Copper tube may be supplied in annealed, bendable or hard drawn temper.
4.1 .2 Identification
Copper tubes manufactured in accordance with AS 1432 shall be incized or have other permanent marking at not less than 0.5 rn intervals along the tube with—
(a) the manufacturer’s trademark;
(b) licence number;
(c) the product certification mark (e.g. WaterMark):
(d) the Australian Standard number;
(e) nominal size;
(f) thickness type; and
(g) the letters ‘BQ’ where tubes are ‘bendable’ temper.
In addition, ‘hard drawn’ and ‘bendable’ temper copper tubes in accordance with AS 1432 are colour coded, with either a legend in the designated colour for the particular thickness type or the legend in black and a separate distinctive continuous mark in the designated colour.
4.1.3 Working pressures
The safe working pressures for copper tubes arc shown in Tables 4.1 to 4.4 and are the pressures that the tubes can continually withstand. These values shall be applicable for temperatures up to 50°C and are based on annealed temper tube. Values for elevated temperatures shall be calculated by multiplying the safe working pressure figures for up to 50°C by the appropriate temperature factor listed in Table 4.5. Pressures for intermediate temperatures may be calculated by interpolation.
Where tubes are brazed or softened, the maximum safe working pressure for annealed temper shall apply.