application
double wall stainless steel exhaust pipe system for all standard furnaces in negative pressure operation mode
combustible
oil, gas and solid fuels
working temperature
≤ 400 °C
material
inside: isostatic ceramic tubes
outside: 1.4301
wall thickness
inside: 8,0 mm
outside: 0,6 mm
welding seam
outside: TIG continuous
insulation
mineral insulation with 32,5 or 50 mm wall thickness, bulk density 120 kg/m³
connection
inside: plug-and-socket con. with acid-proof cement
outside: plug-and-socket con. with locking band
admissible for pos. pressure
no
soot fire resistant
yes
average roughness
1,5 mm
thermal resistance
0,501 m² K/W
approval number
Z - 7.1 - 3351