National Acoustic Products
Engineering in Monash

NAP Silentflo is a specialist organization supplying a wide range of standard or specifically designed disturbance regulate products such as silencers, acoustic materials, duct silencers, absorptive materials and enclosures, for architectural, industrial and commercial applications. NAP Silentflo decided therefore to carry out its own research and development on the behavior of sound absorptive materials at high pressures. Acceptance tests latter completion of the installation confirmed the 85 dB(A) noise glossy had been achieved at the operator's console. In addition, the NAP Silentflo Safe Snap enclosures have been very effective in reducing the overall plant disturbance at the neighboring properties to acceptable levels. In six installations, existing duct labor was extended to accommodate the silencer, while for the remaining two brief ducts, new silencer cases were fabricated. However, in addition to the suppression of plant room air conditioning noise, silencing of supply and return air ducts and vehicle park exhausts is often required. NAP Silentflo, leading designers and manufacturers of racket control equipment, won its first major door contract for seven important acoustic doors for the Victorian Arts center in 1979. The short given by the design engineers for the Victorian Arts center was to bear exceptionally low listening levels in the complex's maze of concert halls and theaters. The company achieved these requirements through the design and construction of a range of acoustic doors, the largest of which were two motorized sliding doors measuring 9m x 5.8m wide and weighing up to 8 tonnes each. These large acoustic doors are also ideally competent to major industrial complexes such as dockyards, diesel or gas turbine power stations, mineral processing plants and pumping stations. For conformance test purposes, NAP Silentflo, leading designers and manufacturers of turbine commotion oversee equipment had to achieve these specifications lower a test basis of five turbines running packed load, although only three 8 MW Solar Mars Gas Turbines had initially been ordered and installed. The project, which required suppression of fan commotion at air flows up to 120m3sec, was completed on time and on budget. The Sound Snap Panel range is also proven in large and small acoustic enclosures for a expansive range of commercial and industrial applications. NAP Silentflo was involved in the project for a complete of eight months and excelled in meeting all manufacturing, engineering and quality regulate requirements. Since being established in 1978, NAP has been involved in the supply of the widest feasible range of racket control equipment including audiology suits, safe speech rooms, industrial enclosures, acoustic barriers, FD and ID fan silencers, vent silencers, gas turbine disturbance control, resonator silencers, mufflers, timber and steel acoustic doors, reverberation control, vibration isolation, floating floors, mobile testing laboratories and diesel engine racket control. As well as providing the most extensive range of standard products for a wide range of applications, NAP Silentflo also provides individual solutions for specialized commotion control requirements. It is worn for the oversee of industrial noise, speech and reverberation oversee within buildings, commercial developments and factories. In response to this demand, NAP silentflo has developed a range of timber acoustic doors which combines excellent acoustical performance with lovely conclude and ease of installation. In industrial applications, specially designed and constructed circular silencers handle disturbance from fans and blowers, cooling towers, dust extraction systems and similar air or gas handling equipment such as compressors and turbines. In industrial applications, specially designed and constructed rectangular silencers handle racket from fans and blowers, cooling towers, dust extraction systems and similar air or gas handling equipment such as compressors and turbines. In response to this demand, NAP Silentflo provides the unique Safe Snap system. This is because it is proven, developed, tested and economical, for all application in noise control involving screens, enclosures, plenums, barriers or acoustic air handling units. In commercial application such as kitchen exhausts, clean air rooms, electronic component manufacture, laboratories and medical facilities where extremely high air quality or low particle contamination is required the silencers can be supplied without fibrous infill and with exceptional non contamination absorptive, or flow resistive linings. In many installations, this airflow is created by commotion generating equipment and the designer or engineer is faced with the problem of allowing the air to get in, and at the alike time, preventing the racket from getting out of the plant room.