نام محصول:
صدا خفه کن تهویه BDER
برند:
FläktGroup
نام انگلیسی:
Ventilation silencer BDER
مشخصات:
Type
ventilation
Product applications
air duct
Other characteristics
tubular, circular
توضیحات:
Circular and rectangular silencers for round ventilation ducts
Efficient attenuation
Absorbing materials polyester (M1 certification) and mineral wool (fire rated)
Migration of absorbent fibres prevented
Circular:
BDER-40 straight M1-certified sound absorber with 50 mm polyester fibre filling
BDER-44 straight M1-certified sound absorber with 100 mm polyester fibre filling
BDER-45 straight M1-certified sound absorber with 100 mm polyester fibre filling and a 100 mm baffle
BDER-30 straight sound absorber with 50 mm mineral wool filling, fire resistance class EI 30
BDER-60 straight sound absorber with 100 mm mineral wool filling, fire resistance class EI 60
BDER-61 straight sound absorber with 100 mm mineral wool filling and a 100 mm baffle, fire resistance class EI 60
Rectangular:
BDER-70 fixed casing, glass wool absorbent
BDER-71 fixed casing, M1-certified, polyester absorbent
BDER-72 openable casing, glass wool absorbent
BDER-73 openable casing, M1-certified, polyester absorbent
BDER sound absorbers are suitable for use as universal absorbers in air-conditioning systems and in conjunction with controllers, particularly where small absorber size and good attenuation values are required. Tightness class of circular silencers is D (EN 12237) and of rectangular silencers C (EN 1751). Models with polyester filling are certified for cleanliness class M1.
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