Precast chamber rings are manufactured to the relevant British standards BS EN 1917 and BS5911-3. The intended use is to permit
access and to allow aeration of drain or sewer systems conveying
sewage or surface water under gravity. Features tongue and groove jointing for an improved seal between rings. Supplied complete with polypropylene coated mild steel double steps which are fitted in a vertical line at 250mm spacing.
- DN (mm) - 1200
- Approx wall thickness (mm) - 90
- Approx weight /m - depth (kg) - 912