Specifications
| Material | Stainless steel |
|---|---|
| Colour | Grey |
| Finish | Gloss |
| Wall thickness | 2 mm |
| Maximum service temperature | 1200°C |
| Temperature class (continuous operation) | T600 |
| Standard | According to EN 1856-2 |
| Certification | 1450-CPR-0007 |
| Origin | Poland |
| Flue range | 2 mm stainless steel single-wall flue |
| Flue type | Dampers Tees |
Documentation:
2 mm stainless steel range
Declaration of performance, 2 mm stainless steel - SPKA range
90° tee with double damper (Bypass) - 2 mm stainless steel flue pipe
90° tee in 2 mm stainless steel with double damper, also called a Bypass, used mainly as a junction piece between the flue and the wood-burning appliance to change the path of the flue gases according to the needs of your masonry heater or heat-storage fireplace.
Particularly recommended in environments where there is a risk of condensation.
Available in diameters of 150, 160, 180 and 200 mm.
Sur Commande
👉 The main role of the bypass damper with male branch (horizontal part) is to change the path of the flue gases according to the phase of use of your appliance:
When lighting or reloading: Open the damper so that the smoke rises directly into the chimney flue. This helps the draught, prevents smoke entering the room and warms the flue quickly.
In steady operation: Once the fire is well established, close the damper. The flue gases are then forced to follow a longer path (often through a heat recovery unit or a heat store): this maximises energy efficiency by recovering as much heat as possible before the flue gases leave the house.
There are many advantages to fitting a Bypass damper on your flue:
✅ Prevents smoke blowing back into the living room when the door is opened.
✅Performance : Increases the efficiency of the installation by "trapping" the heat in the system for longer.
✅Safety : Allows the heat exchangers to be bypassed if they are too fouled or if the draught is insufficient due to unsettled weather.
⚠️ To operate it, you will need to add a control handle not supplied, to be fixed on the 8 x 8 mm square connection end, and possibly a 8 x 8 mm steel rod if more length is needed.
Its 50 mm male/female spigot is smooth and gives an impeccable finish.
🔥As a reminder, flue pipes must be installed in the direction of the condensates, i.e. male end downwards.
What are the advantages of 2 mm stainless steel?
✅ Resistance to very high temperatures of up to 1200°C.
✅ Exceptional mechanical strength: does not deform
✅ Substantial 2 mm thickness ensuring robustness and safety over time (lifetime resistance)
✅ Total immunity to acids
✅ Superior thermal inertia: the flue gases stay hot for longer, which improves the natural draught of the heating appliance
✅ Reduces the cooling of the gases, which limits condensation and the formation of creosote.
⚠️ Reminder of the safety distances according to the NF DTU 24.1 standard:
The safety distance to be kept between a single-wall connecting flue pipe and a combustible material (plasterboard, panelling, PVC, OSB, etc.) is 3 times the nominal diameter of the pipe, with a minimum of 37.5 cm.
However, this distance can be reduced to 1.5 times the diameter of the pipe (with a minimum of 20 cm) by using insulation such as calcium silicate boards (fitted with an air gap) or wall protection boards with built-in insulation.
🔥2 mm stainless steel flue pipes are designed to operate in the N1 (40 Pa) sealing conditions up to 600° (T600) but can withstand temperatures of up to 1200° C.
