Sound pressure level of equipment Lap

Definition and scope

Determination of sound pressure level Lap for hydraulic equipment such as valves, float valves, pressure reducing valves, stop valves, safety groups, ...

Principle :

« The appliance to be tested is mounted at the end of a water pipe, the test pipe, which is fixed to the wall of a room. The wall is called the test wall, the room the test room (see figure 1). The sound generated by the appliance is transmitted from the test pipe to the test wall. The airborne sound which is radiated from the test wall into the test room is measured. In order to obtain comparable measurements in different laboratories, the noise produced by the appliance is compared with the noise produced by an installation noise standard. » NF EN ISO 3822-1 extract

Evaluation method according to NF EN ISO 3822-1