& does relevant recommendations: 【 soft rubber joints, rubber joints, reducing corrugated expansion 】 is gongyi city full state pipeline equipment co., LTD. The main business of our company has been made as a special equipment manufacturing license and ISO quality management system certification of qualified companies, the company management concept: the factory in order to "customer needs is our goal" principle, wholeheartedly for the customers with excellent products, reasonable prices, fast delivery cycle, professional technical support and perfect after-sales service. In the future, full state is full of confidence and hope, was determined in a more high quality brand and good service, sincere cooperation with customers at home and abroad, to do the northern area of the thermal compensation smoke duct equipment industry's first brand.
 


Rectangular damper product introduction
Rectangular damper, also known as air door, there are 74 dd casting rectangular air door and steel rectangular air door two kinds. Used in power plant boiler smoke wind the first system to adjust working medium flow or truncated working medium flow directly, in the system can play a dual role adjustment and partition.
74 dd rectangular air door colour we use the original ministry of 74 standard, a blade casting structure, it has no deformation at high temperature flexure, won't produce switch is ineffective, lack of driving force of failure. Steel rectangular air door is 74 dd modified rectangular air door,Is our company absorbing foreign advanced technology design and production of new products, since 74 the dd cast molding damper is poor sealing, bearing is hard to ensure concentric on both ends of the blades, driving moment is too large, so the steel damper can instead of it, a steel damper consists of spherical universal type of bearing, seal for adjustable chip type, it has small drive moment and high sealing etc.
Rectangular damper with uniaxial and biaxial and triaxial, 4 axis and 5 axis of five types. Specifications such as 300 x400-2000 x2400 66 kinds.
Rectangular throttle position allows horizontal layout and vertical layout, using the medium temperature shall not exceed 400 degrees Celsius.
Rectangular air door before bearing spindle bearing neck, used for installing a worm gear box. Throttle body installed guaranteed fully open baffle block.
The damper has no deformation at high temperature flexure, flexible in the beginning, high driving force small and sealing etc. Throttle position allows horizontal layout and two vertical arrangement, medium temperature shall not exceed 400 degrees. Damper itself without any transmission device, according to demand.
The damper under uniaxial, biaxial and triaxial, 4 axis and 5 axis as five types, specifications for the 300 400-2400 x 2000 x 66, etc.
Party before the air door spindle bearing neck, for installing turbine box. The damper installed guaranteed baffle began all over the nail. The damper itself without any transmission device, can be selected as required.
The throttle damper and turbine shaft for 17 * 17 mm diameter of axle box axis for Φ 22 mm with 78.4 Nm (8 KGM) torque transmission. Damper 32 x 32 mm and turbine shaft diameter of axle box axis for Φ 32 mm with a 294 - nm (32 KGM) torque transmission. If torque is greater than the above value, need to check the throttle shaft diameter of axle shaft and the turbine box.
Party in full close state of air leak rate ≦ 3%; The highest working pressure ≦ 50 kpa; The highest working temperature is ≦ 400 ℃.