KDY

Duct diffuser with nozzles to be mounted in ventilation ducts

Easy to install
Available for both circular and rectangular ducts
Guide vane control
Flexible spread pattern
Available in galvanized version
Standard colour White RAL 9003
- 5 alternative standard colours
- Other colours upon request

Calculate with your requirements

Rectangular nozzle diffuser for supply air. Mounted directly in circular or rectangular ducts. Suitable for constant or variable flow conditions. Air may be supplied at under- or over-temperature, with horizontal or vertical spread patterns. It is always possible to change the spread pattern after installation without affecting air flow, pressure drop or sound level.

AIR FLOW - SOUND PRESSURE ROOM (Lp10A) *)
KDY Size	25 dB(A)		30 dB(A)		35 dB(A)
KDY Size	l/s	m3/h	l/s	m3/h	l/s	m3/h
2-7	18	65	23	83	27	97
2-9	24	86	29	104	35	126
2-14	37	133	45	162	54	194
2-18	47	169	58	209	70	252
3-14	55	198	68	245	81	292
3-18	70	252	88	317	105	378
4-14	70	252	88	317	105	378
4-18	95	342	115	414	140	504
Applies to diffuser, installed in the duct. *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 10 m² room absorption area.

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Include Accessory documents

Document	Article	Document type	Date
Installation, commissioning, maintenance (pdf 329.63kB)	KDYa	IOM Manual	24/05/2018
Building product declaration (pdf 74.35kB)	KDYa	Quality	24/05/2018
Air Overview Brochure (pdf 13.04MB)	Overview Brochure	Brochure	26/09/2023
Duct diffuser with nozzles (pdf 623.12kB)	KDYa	Technical catalogue	20/06/2023