DN80 is the typical mainline size for larger commercial substations or district-heating tap-ins. T-Plus DN80 enables adding a sensor pocket, measurement point, DHW module tap or auxiliary pump without shutting down the whole node — critical where welding would suspend heating for dozens or hundreds of users (multi-family block, office centre, school or hospital).
| Parameter | Value |
|---|---|
| Code | 90680 |
| Manufacturer | Flamco (Aalberts HFC) |
| Series | T-plus cast iron |
| Nominal pipe diameter | DN80 (3") |
| Branch connection | Rp 1¼" (female thread) |
| Nominal pressure PN | 25 bar |
| Max operating temperature | 130 °C |
| Body material | Cast iron with anti-corrosion coating |
| Compatible pipes | Steel (St33/34/35/37) per DIN 2441 / NEN 3257 C Heavy / BS 1387 Heavy |
| Wall thickness (steel DN80) | ~4.5-5.0 mm (Heavy grade) |
| Media | Water, glycol solutions up to 50 %, compressed air |
| Piercing mechanism | Single-shot, integrated |
Official Flamco catalogue: flamcogroup.com/T-plus
Depends on the branch purpose. Sensor pockets, measurement points, or secondary loop tap-ins (up to ~25 m³/h) — sufficient. For larger flow, plan a system drain-down and welded tee.
Yes. T-Plus is suitable for industrial compressed air up to PN 25. Before installation, ensure that swarf from piercing does not enter the flow (install an inline strainer downstream).
Yes, up to 50 % ethylene or propylene glycol with proper inhibitors.
Installed T-Plus needs no periodic service. Annual visual check recommended (corrosion, leak signs).
The cast iron version targets sealed heating/cooling systems. For potable water, use the Flamco T-Plus brass or stainless variant — contact us for the correct code.