Specifications
| Material | 316L stainless steel (inner) - 304 stainless steel (outer) - 30 mm rock wool |
|---|---|
| Colour | Grey |
| Finish | Gloss |
| Wall thickness | 30 mm |
| Maximum service temperature | 600°C |
| Thermal resistance | 0.443 m² K/W |
| Temperature class (continuous operation) | T450 and T600 |
| Standard | According to EN 1856-1 |
| Certification | CE 0099-CPR-A71-0001 and 0002 |
| Manufacturer | Bofill |
| Origin | Spain |
| Flue range | Bofill insulated twin-wall flue (30 mm wall thickness) |
| Flue type | Tees |
90° Female Tee with drain cap - 316L Stainless Steel twin-wall insulated flue
90° tee with female branch (horizontal part) and drain cap in twin-wall insulated flue, for handling changes of direction in the flue of wood-burning heating appliances such as stoves, fireplaces, inserts, masonry heaters, as well as boilers and pellet stoves. In 316 L stainless steel (inner wall) and 304 stainless steel (outer wall) with 30 mm thick rigid rock wool insulation.
Available in diameters from 80 mm to 200 mm.
Lead time: 2 to 3 weeks
Related products:
👉 The 90° tee with female branch (horizontal part) allows a 90° change of direction in the twin-wall insulated flue and also has two other main roles:
→ It allows condensate recovery by collecting the moisture and acids that condense along the flue, preventing them from flowing back into the heating appliance.
→ It allowsflue maintenance: once the cap (plug) is removed, it is easy to empty out the soot when sweeping and to inspect the flue.
It comes with an airtight cap, 2 locking bands and a screwed metal plug which, once removed, allows a drain pipe to be connected.
In which applications should 316 stainless steel twin-wall insulated (DPI) flues be used?
Bofill modular twin-wall insulated stainless steel flues are multi-fuel:
✅ Flue gas removal from wood stoves, inserts, fireboxes and wood, biomass and pellet boilers
✅ Flue gas removal from natural-draught gas fireboxes and boilers
✅ Flue gas removal from gas and oil boilers for domestic and industrial heating and hot water production.
✅ Hot air generators
What is a DPI Bofill modular flue?
Bofill twin-wall insulated flues are made up of:
➡️ An inner wall in AISI 316L stainless steel, 0.4 mm thick
➡️ An outer wall in AISI 304 stainless steel, 0.4 mm thick
➡️ Rock wool insulation (high density, 150 kg/m³), 30 mm thick
The elements are connected by a 55 mm male/female spigot system and included joining collars that make installation easier and avoid thermal bridges.
⚠️ Reminder of the inside and outside diameters of DPI Bofill flues:
Int. 80 mm → Ext. 140 mm
Int. 100 mm → Ext. 160 mm
Int. 125 mm → Ext. 185 mm
Int. 150 mm → Ext. 210 mm
Int. 175 mm → Ext. 235 mm
Int. 200 mm → Ext. 260 mm
