Semi Rigid System Ductwork

DS MVHR 10

Description

Flexible, corrugated exterior, smooth interior, robust air distribution pipe, gas tight to DIN EN 60529. The Semi Rigid -75 can be simply concreted in place, laid directly in the ground, or in riser shafts and false ceilings.

Specifications

Material Pure: HDPE
Minimum bending radius: 1D
Allowable operating temperature: -2 to 600C

Benefits

Fast installation
Smooth inside
Easy to clean
Air tight
Easy handling
Robust tube (ring stiffness greater than 8 kN/m²)

Technical Specifications

Outside diameter – 75mm
Inside diameter – 63mm
Weight per running metre – 0.33 kg/m
Running metres per roll – 50m
Weight per role – 17kg
Roll – height – 0.32m
Roll diameter 1.32m

Semi Rigid	75	90
Inside diameter (mm)	63	74
Air velocity: 0.5 m/s	5.3	707
Air velocity: 1.0 m/s	10.5	15.5
Air velocity: 1.5 m/s	15.8	23.2
Air velocity: 2.0 m/s	21.0	31
Air velocity: 2.5 m/s	26.3	38.7
Air velocity: 3.0 m/s	31.5	46.4
Air velocity: 4.0 m/s	42.1	61.9
Air velocity: 5.0 m/s	52.6	77.4

Guide values for pressure loss in 10 metres of Semi Rigid

Semi Rigid System Ductwork

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