Exhaust silencing

The modern standards of labor protection require quite strong norms of noise at work places. So, pneumatic compressors need to be equipped by good mufflers to reduce the noise. ALUPOR™  offers cheap effective solutions with low flow resistance

Material performance

Property Material designation
100-200 140-315 200-400 315-630
Porosity, % 55±5
Mean pore diameter, mm 0.15 0.23 0.3 0.47

Filtration degree

(min pore diameter), μm

5 10-15 25-35 40-60
Darcy permeability , m2 1.0×10-12 7.0×10-12 8.5×10-12 3.1×10-11

Specific quantity of pores

on the surface, pcs./m2

26.6×106 11.6×106 6.7×106 2.6×106

Specific quantity of air necks

on the surface, pcs./m2

83.7×106 36.4×106 20.9×106 8.4×106
Download silencer calculator (Excel)

Production

GR-SW series

Threaded silencers

Model Air flow, l/min SPL, dB(A) Thread type Thread size D, mm d, mm L, mm SW, mm h, mm Analogues Drawing
GR-SW G1-8   <85 G 1/8” 10 4 21.5 10 4.5   Download
GR-SW G1-4   <85 1/4” 14 8 28 14 6   Download
GR-SW G3-8   <85 3/8” 17 11 37 17 8   Download
GR-SW G1-2   <85 1/2” 21 13 43.5 21 9   Download
GR-SW G3-4   <85 3/4” 27 19 56 27 10   Download
GR-SW G1   <85 1” 34 26 67 36 12   Download
GR-SW NPT1-8 ** <85 NPT 1/8” ** ** ** ** ** ** Download
GR-SW NPT1-4 ** <85 1/4” ** ** ** ** ** ** Download
GR-SW NPT3-8 ** <85 3/8” ** ** ** ** ** ** Download
GR-SW NPT1-2 ** <85 1/2” ** ** ** ** ** ** Download
GR-SW NPT3-4 ** <85 3/4” ** ** ** ** ** ** Download
GR-SW NPT1 ** <85 1” ** ** ** ** ** ** Download

 * - Measured at pressure drop of  6 bar

** - Under development

GR-SW-HP series

High pressure silencers

Model Air flow, l/min SPL, dB(A) Thread type Thread size D, mm L, mm SW, mm h, mm Analogues Drawing

GR-SW-HP G1-2

​** <85 G 1/2” ​** ​** ​** ​** ​** Download
GR-SW-HP G3-4 ​** <85 3/4” ​** ​** ​** ​** ​** Download
GR-SW-HP G1 ​** <85 1” ​** ​** ​** ​** ​** Download
GR-SW-HP G1 1-2 ​** <85 1 1/2” ​** ​** ​** ​** ​** Download
GR-SW-HP G2 ​** <85 2” ​** ​** ​** ​** ​** Download

 * - Measured at pressure drop of  6 bar 

** - Under development 

GP Series

Plate silencers

Model Air flow, l/min SPL, dB(A) L, mm W, mm H mm Drawing

GP 95-165

  <85 90 165 6 Download
GP 100-200   <85 100 220 7 Download

 * - Measured at pressure drop of  6 bar