SILENCERS:
SAS: Silencer with shell manufactured by galvanized sheet steel with thickness 1mm at least. In the two edges is installed a frame consisted of profile SB30 and corners S30 for easy and without leakages connection with the air ducts. Manufactured in the following types:
- SAS-A: Silencer with acoustic splitters type SAP-A.
- SAS-B: Silencer with acoustic splitters type SAP-B.
- SAS-C: Silencer with acoustic splitters type SAP-C.
- SAS-D: Silencer with acoustic splitters type SAP-D.
The characteristics of the silencers had been measured in external laboratory according to EN ISO 7235.
ACOUSTIC SPLITTERS:
SAP-A: Acoustic splitters consistent of a frame profile with aerodynamic design for reduction of the pressure drop, made of galvanized sheet steel. In the internal there is sound absorbing material (mineral fibre) which is covered in the two sides by glass silk. The sound absorbing material is not flammable class Α1 according to ΕΝ 13501 and the glass silk is not flammable class Α2 according to ΕΝ 13501. The half surface of the glass silk is covered by galvanized sheet steel with thickness t=0,5 mm. The sound absorption achieved by absorption and resonance. They are manufactured in thickness 100mm (SAP-A-100) and 200mm (SAP-A-200). Best efficiency in the frequency area 63-500Hz.
SAP-B: Acoustic splitters consistent of a frame profile with aerodynamic design for reduction of the pressure drop, made of galvanized sheet steel. In the internal there is sound absorbing material (mineral fibre) which is covered in the two sides by glass silk. The sound absorbing material is not flammable class Α1 according to ΕΝ 13501 and the glass silk is not flammable class Α2 according to ΕΝ 13501. The sound absorption achieved by absorption. They are manufactured in thickness 100mm (SAP-B-100) and 200mm (SAP-B-200). Best efficiency in the frequency area 500-8000Hz.
SAP-C: Acoustic splitters consistent of a frame profile with aerodynamic design for reduction of the pressure drop, made of galvanized sheet steel. In the internal there is sound absorbing material (mineral fibre) which is covered in the two sides by glass silk. The sound absorbing material is not flammable class Α1 according to ΕΝ 13501 and the glass silk is not flammable class Α2 according to ΕΝ 13501. The half surface of the glass silk is covered by galvanized sheet steel with thickness t=0,5 mm. The other half is covered by galvanized perforated sheet steel with thickness t=0,6 mm. The sound absorption achieved by absorption and resonance. They are manufactured in thickness 100mm (SAP-C-100) and 200mm (SAP-C-200). Best efficiency in the frequency area 63-500Hz.
SAP-D: Acoustic splitters consistent of a frame profile with aerodynamic design for reduction of the pressure drop, made of galvanized sheet steel. In the internal there is sound absorbing material (mineral fibre) which is covered in the two sides by glass silk. The sound absorbing material is not flammable class Α1 according to ΕΝ 13501 and the glass silk is not flammable class Α2 according to ΕΝ 13501. The glass silk is covered by galvanized perforated sheet steel with thickness t=0,6 mm. The sound absorption achieved by absorption. They are manufactured in thickness 100mm (SAP-D-100) and 200mm (SAP-D-200). Best efficiency in the frequency area 500-8000Hz.
