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NCD-S

NCD-S
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NCD-S

Product catalog summary
Overview: The document provides technical specifications and installation guidelines for ALNOR® NCD-S square supply diffusers, designed for use in low- and medium-pressure ventilation systems, as well as air conditioning supply and exhaust ducts.
Specifications: The NCD-S diffusers are suitable for environments with relative humidity up to 70% and are designed for horizontal air flow in spaces with a maximum ceiling height of 4 meters. They are compatible with square ducts and can be installed on suspended ceilings using screws. The diffusers are lightweight and easy to install, with removable vanes for maintenance.
Materials and Finish: The diffusers are made from aluminum sheet with a powder-coated finish, available in RAL 9016 color.
Installation: The diffusers are recommended to be installed with a PRK plenum box for uniform air supply and noise reduction. They should not be installed with clip fasteners on ceilings.
Product Dimensions and Codes: The document lists various product codes with corresponding dimensions and number of vanes, ranging from NCD-S-295-295 to NCD-S-595-595.
Technical Specifications: A selection table provides detailed performance metrics for each diffuser size, including air volume (V [m3/h]), throw distance (T [m]), static pressure (PS [Pa]), and noise level (NC [dB]). These metrics are provided for different air flow rates, indicating the diffuser's performance under various conditions.
Key Performance Indicators: The document highlights the importance of selecting the appropriate diffuser size based on the required air volume, throw distance, and acceptable noise levels for optimal performance in specific environments.
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Catalog excerpts

NCD-S-1

Square supply diffusers Product code example Product code: NCD-S - 295-295 Product code (mm) (mm) of vanes Ventilation finish trim This product is installed with a PRK plenum box in the standard version. ALNOR® ventilation systems is a registered trademark protected by a technical patent. All modification rights reserved.

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NCD-S-2

Square supply diffusers Ventilation finish trim Technical specifications Selection table T [m] - zasi^g podany kolejno dla pr^dkosci 0,5 m/s; 0,25 m/s Ps [Pa] - cisnienie statyczne NC [dB] - gtosnosc przy przyj^tym ttumieniu pomieszczenia 10 dB ALNOR® ventilation systems is a registered trademark protected by a technical patent. All modification rights reserved.

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.