Blow off Silencers are employed to reduce acoustic noises where gas, steam or high- pressure air are emitted into the atmosphere. Typical areas of application are pressure relief valves, safety-relief valves, turbine- and compressor-bypass-system and process valves.

Following information is needed for dimensioning:

• Gas or steam amount per hour
• Temperature and pressure after the valve during the blow - off process
• Allowable immission - level at a certain distance
• Diameter of the connecting pipe, material