BS EN 1751:2014 PDF

1   Scope 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;

g) measurement of casing leakage;

h) determination of flow rate and pressure requirements;