Product designation according to
UNI EN 1856-1: 2009

Double wall
Temperature Pressure Condensate Corrosion Flue liner material specification Sootfire Minimum distance to combustible material

T200

max 200 °C

P1

200 Pa

W

Wet utilization

V2

Corrosion class

L50050

Stainless steel AISI 316 L
0.5 mm

0

No resistance
(with seal)

50

50 mm

T250

max 250 °C

P1

200 Pa

W

Wet utilization

V2

Corrosion class

L50050

Stainless steel AISI 316 L
0.5 mm

0

No resistance
(with seal)

70

70 mm

T250

max 250 °C

N1

40 Pa

D

Dry utilization

V2

Corrosion class

L50050

Stainless steel AISI 316 L
0.5 mm

G

Resistant
(without seal)

150M

150 mm