Pressure Class C 2000 Pa
DUCT LONGEST SIDE (MM)
GUAGE (MM)
JOINT RATING
DUCTMATE FLANGE
STIFFENER (1)
MAX LENGTH (2) WITHOUT STIFFENER
Up to 400
0.8
J2
20 / 25
S2
3000
401 to 600
1250
601 to 800
800
801 to 1000
J3
30 / 35
S3
1001 to 1250
1.0
J4
S4
1251 to 1600
J5
45
S5
1601 to 2000
1.2
625
2001 to 2500
J6
45 with Tie Bar
S6
Over 2500
Contact Ductmate (Europe) Ltd
(1) For Stiffener ratings refer to DW144 Page 23, Fig. 18 - Fig. 23. (2) All maximum lengths are based on stiffened sheet ducts.
(1) For Stiffener ratings refer to DW144 Page 23, Fig. 18 - Fig. 23.
(2) All maximum lengths are based on stiffened sheet ducts.
