T701-6 Impedance Composite Muffler

T701-6The impedance composite muffler series is an early muffler series used in air conditioning and ventilation systems.

T701-6There are ten different sizes and specifications in the series, which are generally suitable for air volume2000～30000 m3/hThe wind speed is6m/sThe external cross-sectional dimensions are800(wide)×500(tall)～2000(wide)×1800(tall)Among them1#～4#The length of the muffler is1.6m

5#～10#do0.9mThe resistance noise reduction of this composite muffler is caused by the sudden change (discontinuity) of the inner pipe section and the inner and outer pipes

Expansion chamber between（1#～4#To connect three rooms in series,5#～10#It is composed of two chambers connected in series, while resistive noise reduction is composed of

Ultra fine glass wool sound-absorbing sheets absorb sound energy to reduce noise.

T701-6The unit length noise reduction of the Type muffler series is generally: low frequency10-15dB/mMid frequency15-20dB/mHigh frequency20-25 dB/mSingle level pressure loss15-60Pa.

T701-6Points to note when selecting impedance composite mufflers:

The wind speed for selecting a muffler6-10m/sSuitable, highest12-14m/s；

1-4Number can be used at a single level,5-10Multiple sections should be connected in series.

The muffler can be directly installed at the fan outlet, and should be installed as close as possible to the air conditioning room in the system. The muffler shell should be insulated like the air duct. At present, due to the large volume of the muffler, it is gradually being replaced by several previous series.