High pressure twin-wall flue systems
DW – KL50: Twin wall insulated, factory-made exhaust system with special conical metal to metal jointing for high temperatures and high pressures.
DW – FS50: The DW FS system of Jeremias is a twin wall insulated, factory made exhaust system with flanged connection and with graphite gasket between flanges, that guarantees the tightness for high…
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Product information
Engineered for extreme performance in mission-critical environments
Jeremias UK offers two high-performance twin-wall flue systems—DW KL 50 and DW FS—designed to meet the most demanding requirements of high-temperature and high-pressure exhaust applications. These systems are the preferred choice for backup generator sets in data centres, mission-critical infrastructure, and industrial energy systems, where reliability, pressure integrity, and thermal resistance are non-negotiable.
Both systems are available with custom insulation thicknesses (typically 32 mm or 50 mm) and a wide range of inner and outer liner material combinations (AISI 304 or AISI 316L), allowing full adaptability to project-specific needs.
| DW-KL 50 | DW-FS 50 | |
|---|---|---|
| MATERIAL | Inner wall: AISI 304 – Optional AISI 316 Outer wall: AISI 304 |
Inner wall: AISI 316L – Optional AISI 304 Outer wall: AISI 304 |
| INSULATION | High density rigid rockwool (120 kg/m3) | High density rigid rockwool (120 kg/m3) |
| WORKING TEMPERATURE | ||
| FINISHING | Standard: Bright annealed (BA) RAL colours (Check prices) Optional outer wall: Galvanised steel -15% (only lengths and deviations) |
Standard: Bright annealed (BA) RAL colours (Check prices) Optional outer wall: Galvanised -15% (only lengths and deviations) |
| THICKNESS | Inner wall: 0,4 – 0,5 – 0,6 (depending on the diameter) Insulation: 50 mm Outer wall: 0,4 – 0,5 – 0,6 (depending on the diameter) |
Inner wall: 0,6 – 0,8 (depending on the diameter) Insulation: 50 mm Outer wall: 0,5 – 0,6 – 0,8 (depending on the diameter) |
| AVAILABLE DIAMETERS (mm) | Ø150 a Ø800 | Ø130 a Ø800 |
| CONNECTION SYSTEMS | Male-female push fit connection secured by locking band (2.0) included | Flanged connection inside with V-band secured with ceramic wool and externa locking band 2.0. |
| FIRE RESISTANCE | ||
| CE CERTIFICATE | 0036 CPR 9174 061 | 0036 CPR 9174 086 |
| EC CLASSIFICATIONS (UNE-EN 1856-1) | T600 – N1 – D – Vm – L20040 – G(70) T600 – H1 – W – Vm – L20040 – O(50) T200 – H1 – W – Vm – L20040 – O(20) T200 – P1 – W – Vm – L20040 – O(00) |
T200 – H1 – W – V2 – L50060 – 0(20) T600 – H1 – W – V2 – L50060 – 0(50) T600 – H1 – D – Vm – L20060 – 0(50) |



