This Appraisal is for a range of polypropylene (PP) sewer maintenance shafts and chambers, including associated fittings. This Issue 3 is to incorporate AXEDO 600 PP maintenance chambers, previously appraised in PA 1801 (which had reached its 5-year expiry date) into this Appraisal report. PA 1801 will be withdrawn upon publication of this report. QA certifications have also been updated.
Issue 2 of this Appraisal was a replacement and amalgamation of Parts 1 and 2 which had reached their 5-year expiry dates.
The PP maintenance shaft base units are available for use with DN 100, DN 150 and DN 225 gravity sewer installations in the following sizes and configurations:
- DN 300 x DN 100 inline or junction
- DN 300 x DN 150 inline or junction
- DN 300 x DN 225 in-line
- DN 225 x DN 100 inline or junction
- DN 225 x DN 150 inline or junction
- DN 375 x DN 100 in-line
- DN 375 x DN 150 in-line
- DN 375 x DN 225 in-line
The scope of this appraisal also includes PVC-U terminal maintenance shaft assemblies in sizes DN 225 x DN150, DN 300 x DN 150 and DN 300 x 225. These fittings are used at end of line situations.
The PP AXEDO 600 maintenance chamber base units are moulded with DN 150 or DN 225 outlets and the following configurations:
- DN 600 x DN 150 straight, 1200 offset, tee or swept cross.
- DN 600 x DN 225 straight or swept cross.