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Phone: +86-534-5012407
Mobile phone: +86-188-6602-0062
Email: sddljnhb@163.com
Website: http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
Our company’s smoke‑exhaust fire dampers are primarily installed in supply and exhaust ductwork or smoke‑exhaust ducts of ventilation and air-conditioning systems. Under normal conditions, they remain open; in the event of a fire, they automatically close when the temperature of the flue gases in the duct reaches a preset threshold. They meet specified requirements for fire resistance and integrity over a defined period, thereby preventing the spread of smoke and flame. These dampers are indispensable safety devices in building fire‑protection systems.
Mobile phone:+86-188-6602-0062
Email:sddljnhb@163.com
Website:http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
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