Specifications
| Material | 316L stainless steel (inner) - 304 stainless steel (outer) - 30 mm rock wool |
|---|---|
| Colour | Black |
| Finish | Matt lacquered |
| Length (overall) | 500 mm |
| Wall thickness | 30 mm |
| Maximum service temperature | 600°C |
| Thermal resistance | 0.443 m² K/W |
| RAL paint | RAL 8022 |
| 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 | Straight lengths |
Straight element 500 mm - DPI 316L stainless steel, black
Straight element, 500 mm long, insulated twin-wall, matt black lacquered, used for the flue gas evacuation of wood-burning heating appliances such as stoves, fireplaces, inserts, masonry heaters, as well as pellet boilers and pellet stoves. In 316 L stainless steel (inner wall) and black lacquered 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 500 mm straight element adapts to all insulated twin-wall flue heights, and its matt black lacquered stainless steel finish will give your installation a modern, attractive look. Locking band included.
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 Bofill Black twin-wall insulated 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, lacquered matt black (RAL 8022).
➡️ 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
