佛山市程序飞青格宁雅风暖通空调设备有限公司

用范围：本系列产品为国标消声器之一，由金属作骨架的玻璃棉吸声片，内管截面的突变和内外管之间的膨胀室所构成外壳呈矩形，对中低频及高频都有较大的消声作用，可用于降低空气调节，通风系统中的中低压风机噪声及对金属表面无腐蚀作用及无粉尘的场合。通用风量为2000~60000m3/h。

The scope of application: The product family is one of the national standard mufflers. The glass-wool sound-absorbing film with metal skeleton, and the rectangular shell constructed by mutations and the tub cross-section, take a great role to reduce high-frequency sound and low-frequency sound in the muffler. The products can be used to reduce the low-pressure fan noise in air-conditioning and ventilation systems, and in the occasion of non-corrosive to metal surface and dust-free. General air volume is 2000~60000m3/h.

   结构特点：本系列消声器在国标701-6型基础上改型设计而成。并在原吸声层中的玻璃丝布和超细下班棉外复盖镀锌穿孔板或不锈钢丝网，以加固原结构使消声材料不易损坏和被气流吹走，大大延长消声器寿命。同时内、外管均用镀锌钢板制成。具有坚固、美观、耐用、防锈力强的特点。

Structural characteristics: This series of muffler remodel based on the national standard muffler 701-6, and we cover a galvanized perforated plate or a stainless steel wire mesh upon the sound-absorption fiberglass and ultra-fine cotton to reinforce the structure, so that the material will not be easily damaged or blown away by wind, and the muffler has a longer life. Besides, the muffler is made from galvanized steel tube with characters of strong, attractive, durable, rust-proof.

性能：消声量,低频R=10-15dB/m阻力系数=0.4

中频R=15-25dB/m

高频R=25-30dB/m

Performance: The volume of noise reduction, low-frequency R=10-15dB/m Resistance=0.4
IF(intermediate frequency) R=15-25dB/m
High-frequency R=25-30dB/m