Krantz Components

Radial mixingseen from below

RA-N3

Radial swirl diffuser with 24 vanes

RA-N3 Radial swirl diffuser with 24 vanes by Krantz

blue = cool supply air orange = warm air

Move through the air · click or hold for a swirl burstDrag the diffuser to rotate · tap beside it for a swirl burst

An outlet with 24 radial vanes discharging horizontally. With an insert collar, one size covers a wide flow range, keeping the ceiling appearance uniform.

RA-N3 Radial swirl diffuser with 24 vanes by Krantz
RA-N3Radial mixing · ceiling
Discharge height
2.4 – 4.5 mp. 11
Max. ΔT cooling
−12 Kp. 2
Source · DS 4131eKrantz, Radial outlet RA-N3, DS 4131e 05.2026

Stylised view, not a measurement

Technical data ↓

How the RA-N3 works.

An outlet with 24 radial vanes discharging horizontally. With an insert collar, one size covers a wide flow range, keeping the ceiling appearance uniform.

Applications: offices and shops (worked examples) (p. 7).

Krantz, Radial outlet RA-N3, DS 4131e 05.2026.

Technical data RA-N3

Discharge height
2.4 – 4.5 mp. 11
Max. ΔT cooling
−12 Kp. 2
Volume flow
95 – 1,440 m³/hp. 2

Krantz, Radial outlet RA-N3, DS 4131e 05.2026.

Page numbers are PDF pages of the data sheet.

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Air

Specifications of the RA-N3 with the source of each value · Air
PropertyValue · Source
Volume flow 95 – 1,440 m³/h; DN 355: 200 – 630 / 135 – 440 / 94 – 320 m³/h (collar 0/2/4); DN 500: 450 – 1,440 / 310 – 1,010 / 220 – 720 m³/h p. 2
Max. ΔT cooling −12 K p. 2
Max. ΔT heating +10 K up to 3 m ceiling height, +5 K above that p. 2
Discharge height 2.4 – 4.5 m p. 11

Design

Specifications of the RA-N3 with the source of each value · Design
PropertyValue · Source
Sizes DN 355 and DN 500, circular (RA-N3R) or square (RA-N3Q, tile 600/625); 24 fixed radial vanes p. 2
Materials and finish outlet powder-coated sheet steel; reducer aluminium; plenum box Sendzimir-galvanised sheet steel; screw cap brass powder-coated p. 3
Connections type A (reducer, spiraal- of flexibele buis), D (vlakke aansluitkast met zijtuit), F (kast voor vierkant rooster in tegelplafond, stapelbaar) p. 2
Options and versions collar 2 or 4 for smaller volume flow at the same size; segment cover discs for 3-way or 2-way (symmetrical/asymmetrical) discharge; volume flow damper; acoustic lining (box D only) p. 12

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