Ventilation for buildings - Air terminal devices – Aerodynamic testing of damper and valves

رقم المستند: NL EN 1751 : 2020
القطاع: Sociology. Services. Company Organization and Mana
TC: NL TC 3018
ICS: 91.140.30
This European 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) 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 European Standard. The tests specified above apply to the following: f) measurement of leakage past a closed damper or valve;