Specifications
| Material | 304 stainless steel |
|---|---|
| Colour | Grey |
| Finish | Gloss |
| Wall thickness | 30 mm |
| Maximum service temperature | 600°C |
| 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 | Clamps and brackets |
Reinforced locking band - For twin wall insulated
Structural locking band for reinforcing the tightening of twin wall insulated flues of wood-burning appliances, such as stoves, fireplaces, inserts, masonry heaters and also boilers and pellet stoves.
In 304 stainless steel, available in diameters from 80 mm to 200 mm.
Lead time: 2 to 3 weeks
Related products:
👉 The reinforced structural locking band tightens and therefore strengthens the joint between two elements of the twin wall insulated flue, to increase the stability and rigidity of the whole installation against the wind load on the flue above the roof. It is recommended to use this type of band above 2 metres in height (self-supporting flue).
⚠️ Bofill insulated twin-wall flue accessories may be compatible with other brands of flue provided they have the same internal / external dimensions.
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
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.
