This European Standard specifies methods for the testing and rating of dampers and valves used in air distribution systems with pressure differences up to 2000 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 standard.
DS/EN 1751:1999 history
1999DS/EN 1751:1999 Ventilation for buildings - Air terminal devices - Aerodynamic testing of dampers and valves