Plastic Pipes
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Types and Durability
| Description
Plastic pipes |
Expected Lifespan
(Years) |
Adjustment Factors |
| uPVC to SS 141 : 1976, SS 213 : 1998 for soil, waste and vent applications, SS 272: 1983 for drainlines and sewers. Joints and fittings for use with unplasticized PVC pressure pipes shall comply with SS 174: 1977. | 30 | Pipes embedded in screed but not plastic sheated or fully wrapped: limited to 5 years.
Pipes embedded in screed and plastic sheated or fully wrapped: -15% of no. of years Mains water below 7pH: -15% of no. of years Test certificate from approved local testing authorities: +15% of no. of years |
| Plastic pipes or tubes not specified as above | < 30 |
In the case of 2 or more condition of adjustment factor occur, the percentage of year shall be added to obtain the durability value.
Notes:
- All non-metallic material in contact with water shall comply with SS 375 : 1994 or BS 6920 : 1990 and clause 8 of SS 375: Part 1 : 1994. Non-metallic seat washers shall also comply with BS 3457 : 1973.
- All elastomeric seals for joints in pipework, pipelines and water fittings shall comply with SS 270 : 1996.
- AS 3518 Part 1 & Part 2 : 1988: ABS pipes and fitting for pressure application