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Noise is an unwanted by-product where regulating and control valves are used to control pressure in the process industries, such as chemical, petrochemical, pharmaceutical, food, steel working and electricity generation. This noise can lead to hearing damage and environmental disturbance, especially when valves operate during night hours. HNW offers specifically interposed in line dampeners which help constrict noise effectively. The in line dampeners comprise an inlet diffuser zone, expansion zone and acoustic absorption zone – all along a single axis. The dampener units are made from carbon steel components and the acoustic material from mineral wool fibres. Custom made units can be fabricated to meet specific requirements of a particular plant.
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