Duct Repair door

Repair doors are usually installed in the pipe sidewall air conditioning or ventilation system, near the valve, the valve provided for the maintenance of various operating space, such as fire dampers, check valves and so on. Composed of several sub-part service door core doors, door frames, accessories, door core filled with glass wool felt insulation thickness of 25mm, to reduce the amount of cold air loss. Core doors and door frames with hinges hinge connection. Equipped with door core lock, the door closed behind can lock fixed on the door frame rubber seal to prevent air duct leak, door cores, and square frames are stainless steel or throat with a material thickness of 0.6 ~ 0.8mm The galvanized board manufacturing, when repairs need to open the door as long as the lock screw at an angle can be easily opened. Dongguan, Guangdong Province Hung-mao Mechanical and Electrical Equipment Co., Ltd. is a wealth of design, development and production installation, marketing and management experience, and service as one of the fire ventilation equipment manufacturing enterprises. The main products, "Hong Universe": Fire (ventilation) dual-tank centrifugal fan, fire temperature exhaust fan, axial fans, duct fans, induced fan, kitchen dedicated fan, fire dampers, exhaust valves, air flow control valve, air conditioning Grille, pipe muffler, HIP me, air purifiers and other products. It is by the National Fire Quality Inspection Center, the National Inspection Center and the air-conditioning equipment inspected Beijing Labor noise test center, through the ISO9001: 2008 international quality system certification of fire ventilation equipment manufacturing enterprises. Mao hung in the company, we have a comprehensive quality assurance, from raw materials, production processes to environmental protection in line with the quality certification standards. The introduction of the use of advanced equipment and production technology, accelerate the improvement of the company's technology, and actively develop new products, establish a quality brand objectives, and the country set up a number of offices and after-sales service power outlets. Products involved in commercial office buildings, retail and entertainment, industrial, airport, education, clean rooms, health and medicine until, at home and abroad and has many famous model works. Hung-mao company will continue to actively participate in China's construction industry, we have always been committed to being your best partner in building ventilation fire industry. To establish the most professional team to create a "hung Universe" Ventilation become mainstream brand building ventilation industry. Achievements of the Decade trust, quality Yu collar future, your participation, Mao hung the company's growth on the way to some more exciting. Dongguan City, Hung-mao Mechanical and Electrical Equipment Co., Ltd.