The silencer can absorb massively the high/middle frequency noise created by the system by its special contour, intrinsic structure and special-purpose sound absorber. It is widely used in middle/low pressure ventilation and air-conditioning system of the industry and civil construction. Its suitable temperature is -20℃-50℃ and working condition is non-corrosiveness medium.  It may be installed at inlet/outlet of fan, among the air pipeline or inlet/outlet of pipeline. Its main structure is that the surface uses 1 millimeter galvanized sheet, the inside board uses diameter 6 - 8 millimeter perforation plate (perforation rate P>18%), the sound absorber material is compounded by centrifugal mineral wool board and non-alkali glass fiber cloth. Its main types are impedance compound silencer, micro perforates silencer, noise elimination elbow and so on.

T701-2asbestos silencer
　　This silencer is the ideal product that the air-conditioning purification system needs, is one of national standard duct silencers. In order to overcome the distortion shortage of wooden frame, our company redesigned it, which is composed by steel-skeleton FRP acoustical fins and expansion room between the mutations of inner pipe section and outer pipe. The outside shell is rectangle. It can eliminate sounds of middle or high

 frequency obviously, and is used for reducing middle or low pressure fan and high frequency all has the big noise elimination function to the intermediate frequency, may use in reducing in air conditioning and the ventilation system center, the low pressure air blower noise. The well ventilated amount of wind is 2000~6000m3/H, uses in to the metal surface does not have the corrosive action and does not have the dust the situation, like has the corrosive action to the metal surface also to be possible specially to order, when orders needs to explain.

WXmicro perforation silencer

   This silencer is an ideal product in air purification system, and is assembled of prforation plates that made of steel plate, galvanized sheet or aluminum alloy board. It all has fine sound elimination effect due to use different perforation rate and different back cavity double-decked orifice plates. Test proves that the sound elimination capacity of this silencer (L=1.8m) is 12—26db at low frequency, 20—25db at middle frequency (air current speed is 10—15m/s).

    This silencer resistance loss is very small. After test, when current speed is 9-11m/s, the resistance loss is 7-29Pa. WX silencer manufactured by our company is composed by two sections, effective length is 1.8m, the cross section size is manufactured according to the national air pipeline general standard. Shown by the following chart. Divides into WX-I, WX-II, WX-III three kinds of specifications according to the size. You may connect many of them in series in the middle according to the sound elimination and site requirements when selecting. The air current speed should not oversize, about 16m/s is better generally. We will produce them in terms of single layer single section, if no requirement when ordering.

VKWnoise elimination elbow

    VKW noise elimination elbow is one kind of new product that is improved on our original elbow foundation. The test and customers have proved that this new elbow has fine performance and wide frequency band, its air resistence is small, re-noise is low. It adopts smaller perforation plate as its sound absorber that replaces the damping sound absorber, thus makes its structure be simple. It is suitable in air conditioning and ventilation projects where the condition is moist, high temperature, high-speed current and super-clean environment.

    The intrinsic structure of this elbow is that the perforation plate is fixed on the housing by channel steel, among I type is single cavity noise elimination elbow suitable for middle frequency; The II type is double cavities, its sound elimination frequency band is wide. Please pay attention to these when selecting.