- For installation in the floor slab
- Connection pipes with spigots
- Can be retrofitted to Type 0, 1, 2 and Type 3F as per EN 13564
Triplex-K with shaft system
The ACO Triplex-K-2 double backflow stop with shaft system is suitable for installation in the foundation floor slab and provides reliable protection against backflow. The backflow stop can be retrofitted to upgrade a cleaning pipe to a single backflow valve and a double backflow valve. A height-adjustable flange for sealing in WI concrete is available as an accessory. The cover plate can be provided with a selectable surface finish.
Triplex-K cleaning pipes with shaft system

Triplex-K-0 single backflow stops with shaft system

- For installation in the floor slab
- Connection pipes with spigots
- Can be retrofitted to Type 1, 2 and Type 3F as per EN 13564
Triplex-K-1 single backflow stops with shaft system

- For installation in the floor slab
- Connection pipes with spigots
- Can be retrofitted to Type 2 and Type 3F as per EN 13564
Triplex-K-2 double backflow stops with shaft system

- For installation in the floor slab
- Connection pipes with spigots
- Can be retrofitted to Type 3F as per EN 13564