NA 041

DIN Standards Committee Heating and Ventilation Technology and their Safety

Standards [CURRENT]

DIN EN 1751
Ventilation for buildings - Air terminal devices - Aerodynamic testing of damper and valves; German version EN 1751:2014

Title (German)

Lüftung von Gebäuden - Geräte des Luftverteilungssystems - Aerodynamische Prüfungen von Drossel- und Absperrelementen; Deutsche Fassung EN 1751:2014


This standard has been prepared by Technical Committee CEN/TC 156 "Ventilation for buildings", the secretariat of which is held by BSI. The standard specifies methods for the testing and rating of dampers and valves used in air distribution systems with pressure differences up to 2 000 Pa. The tests incorporated in this European Standard are: a) leakage past a closed damper or valve (for classification see Annex C); b) casing leakage (for classification see Annex C); c) typical flow rate/pressure requirement characteristics; d) torque (see Annex A); e) thermal transmittance (see Annex B). The acoustic testing of dampers and valves is not included in this standard. The tests specified above apply to the following: a) measurement of leakage past a closed damper or valve; b) measurement of casing leakage; c) determination of flow rate and pressure requirements; d) measurement of torque characteristics (see Annex A); e) measurement of thermal transfer characteristics to determine insulation properties (see Annex B).

Document: references other documents

Document: referenced in other documents

Responsible national committee

NA 041-02-52 AA - Components (Mirror committee CEN/TC 156/WG 3 and 4) 

Responsible european committee

CEN/TC 156/WG 4 - Air terminal devices 

Edition 2014-06
Original language German
Translation English
Price from 91.60 €
Table of contents



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