Page 3 - ROUND VENTILATION DUCTS

ROUND VENTILATION DUCTS

KMW-optium product standard: SPIRO CIRCULAR DUCTS

Dimension - material

D1 sheet metal thickness (mm) Pipe
duct ZN-96/KMW 002 / PN-B-03434 DIN 24 152 connection

diameter spiro tubes/tubes with longitudinal scarf joint tubes length l2
in mm
PN-B-03410 0,50 0,60 0,70 0,90 1,00 1,20 0,60 0,80 1,00 1,20 ?42

100 0,5 ?65

125 0,6 ?80

160 0,6

200 0,6

250 0,6

315 0,7

355* 0,7

400 0,7

450* 0,7

500 0,7

560* 0,7

630 0,9

710* 0,9

800 0,9

900* 1,1

1000 1,1

1120* 1,1

1250* 1,1

SPIRO COILED TUBES

COILED TUBES WITH LONGITUDIAL SCARF JOINT

• ventilation ducts characterized by a circular internal area are made of sheet metal,zinc coated using
Sendzimir method 275 g/m2 /DX51D Z275/

• *ducts characterized by dimensions which are not recommended by the standard
• it is possible to choose the thickness individually, according to customer`s requirements

Execution
• standard execution - the construction of the KMW- optimum circular ducts requires the assembly by inserting,

with circumferential sealing with self-adhesive tape of joints, or by inserting with a „U” - shaped seal

(SYSTEM METU)

Tightness class Boundary value of the static pressure (p) Boundary value
of ducts of the leak index (f(max))
Pa
A m3s-1m-2
B Overpressure f Underpressure f
C 0,027•pt0,6510-3
500 1,53 500 1,53 0,009•pt0,6510-3
0,003•pt0,6510-3
1000 0,80 750 0,66

2000 0,41 750 0,22

a)Ducts for special applications /MAG-welding execution is not within the scope of this product/.

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