Exhaust Silencers
ALFA Exhaust Silencers are constructed from heavy gauge hot rolled cold quenched sheet steel with welded construction flanges to JIS 5K are supplied as standard. Drain plugs are fitted for easy removal of condensate. Silencers are coated with high quality heat resistant aluminium paint which can withstand an operating tempera-ture of 600 degree C.
3 Types of ALFA Exhaust Silencers listed below:
1. MULTI CHAMBER REACTIVE
Model: AEPS (Side Inlet End Outlet) AEPE (End Inlet End outlet)
Multi Chamber Reactive Silencers generally consists of several pipe segments and provided good pressure drop characteristic and provides good attenuation at low and mid frequency.
Available with side entry (AEPS) and end entry (AEPE) and they can be installed horizontally, vertically or at an inclined position without affecting perfomance.
These silencers can provide overall noise attenuation of 30 dB.
2. STRAIGHT THROUGH ABSORPTIVE
Model: AESE (End Inlet End Outlet)
Straight Through Absorptive Silencers contains fibrous or porous sound absorbing materials and attenuate noise by converting sound energy propagating in the passage into heat by friction in the silencer bore between gas particles and sound absorbing material held in position by the use of perforated metal liner. Absorptive silencer have noise reduction characteristics at high frequency, and they can be installed in any orientation without loss of acoustic performance.
These silencers can provide overall noise attenuation of 20 dB.
3. SUPERCRITICAL OR COMBINATION TYPE
Model: AECS (Side Inlet End Outle) | AECE (End Inlet End Outlet)
Supercritical Exhaust Silencers are compact combination of MULTI CHAMBER REACTIVE and STRAIGHT THROUGH ABSORPTIVE type. It suitable to install where space is a constraint and noise criteria is not too stringent. Available with side entry (AEPS) and end entry (AEPE) and can be installed in any orientation without loss of acoustic performance.
These silencers can provide overall noise attenuation of 35 dB.
Applications
- Engine Exhaust Gases
- Vacuum pump
- Reciprocating blowers
- Compressors
