Normal Close Volume Control Damper Fire Smoke Damper For Air Ducting

FHW - 4 HVAC Systems Manual Fire Normal Close Air Smoke Damper

Description :

1.70 ℃ or 280 ℃ temperature automatic switch
2. Fire Center electronically controlled shutdown
3. Manually shut down
4. Manual Reset
5. When closed, one or two pairs of contacts output signal.

If there is no note, it only output one contact signal.
6. When round duct size ≥630mm, can choose square round

electronically controlled dampers

7.When the five-speed manual adjustment valve open,

control its ventilation.

Dongguan Zhisheng（Lihong） Purification Technology Co., Ltd. is builded in 1997, we are specialized in manufacturing clean room equipments, like air shower, air shower tunnels, Fan Filter unit(FFU), Pass Box,  Clean Bench, Laminar Flow cabinet, clean booth, various sole cleaning machines and boot washer,  various air filters including HEPA filters, fine filters, V type filter, medium filter, pocket filters and Pre-filter and other filters,  and HVAC air diffusers, air grilles and volume control dampers.

We make our products strictly in accordance with state standards. With the top-graded product quality in the industry, our company enjoys great reputation among the customers all over the country. Our products are also exported to Europe, North America, Middle East, Southeast Asia and other countries.

Clean room equipment include air shower, clean bench, FFU,pass box, pass box with air shower, clean booth etc.

Air filters include primary, medium, HEPA filter, Replacement filter for Projector and Air Purifier.

Our HEPA filter has passed the tests of National Center of Quality Supervision and Inspection and Testing for Air Conditioning equipment.

The purifying equipment are in conformity with GB5007-2001 Design Code of Cleaning workshop. Our wide range of air purifying product will surely satisfy different engineering requirements of different purifying grades.

We also supply shoe sole cleaning machines, Hand wash stations, boot washers,wash tanks and  hygiene station machines and stainless steel products for clean room and food factories.

HVAC products include air diffuser, air grille, air louver, air damper, pressure damper, Sound absorber and other accessory parts for air-conditioners. They are widely applied in many large-scale projects and win consistent high praise of our customers because of the superior quality and delicate crafts

We develop new products for pharmacy and hospital, like dispensing room, dynamic pass box, Electric sliding door and swing door for hospital, Laminar flow air supply ceiling,drug cabinet, instruction cabinet ,Wash hand sink, Liquid crystal light and so on.

Adhering to the operation tenet of Honesty Service and Pursue Perfection, our skillful and high quality employees will produce the best and most reliable products with advanced processing equipment and excellent materials. Comprehensive and prefect after-sales services will be available to customers. We are committed to provide the best products and comprehensive services to all customers.

We have Lasing cutting machine, Bending machine, Punching machine, these new machines makes sure the good-looking and superior quality for the machines.

Our workers have been more than 10 year experience in welding , and they have good skills to make sure the quality of machine.

Besides, we have R & D team, we have 5 engineer to design and develop the new product and selove the techncial issues of the machines.

Websites: www.cleanroom-airshower.com

Email: sales@cleanroom-airshower.com; sales-guo@zsfilters.com

Whatsapp(wechat): 86-13712072567