Double wall tee 87⁰ NPRR

Purpose: to remove the products of combustion from the combustion space to the atmosphere

Fuel: oil, gas,solid (except fuel the amount of sulphur of which is ≥ 0.2% according to the mass)

and solid fuel without not using peat and charcoal

System marking according  to EN 1856-1

Ø 80-300 mm,T450-N1-D-Vm-L20(050-100)-G70

Ø 350-450 mm,T450-N1-D-Vm-L20(060-100)-G105

Ø 500-600 mm,T450-N1-D-Vm-L20(060-100)-G140

T450⁰ C- maximum operating temperature

N1- natural draught

D- dry operating conditions

Vm- resistant to corrosion

G- resistance to soot fire

70;105;140 - distance to  combustible materials     

Flue liner- L20-stainless steel  1,4301

Ø - 80-200  mm - 0,5; 0,6; 0,8;1,0 mm

Ø - 250-550  mm - 0,6; 0,8;1,0 mm

Ø - 600 mm -0,8; 1,0 mm

The outer pipe – painted stainless steel  1,4301

Insulation- injected mineral wool, thickness -25 mm.