2015 Return Air Grille with Aluminum Filter in China

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100 pc
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999999 pc/month

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Product Description:

Specification of Round Diffuser


Round Diffuser With Damper

 Supplying Air Diffusers 

-Frame Thickness: 1.0mm /0.8mm
-Any Size be customed 
-Powder Coated RAL 9010/9016


Usage of Round Diffuser

The grille is suitable for ceilling  sidewall, soffit or cill mounting and may be used for supply or extract applications. 

Typical installations include offices, shops, hotels and most commercial or industrial buildings.

Available as standard in white polyester powder coat finish. 

Other polyester powder  coat finishes are also available as an option.

Size & Specification of Round Diffuser

round air diffusers

circular ceiling diffuser

round diffuser





1. Product name: round air diffuser



2. Material: aluminum



3. Powder coated: standard color, RAL 9010/9016



4. Damper with



5. reduce the flow resistance and noise.



6. The products are easy to install and clean.



7.adapt to centrel air-conditioning systems.



8. other size/colors available.

Dimensions,colors,thickness, finished, disigns and other specification can be customized according to customers' request

Paacking & Shipment



PO shrink film bag for each pcs, ourter by export carton

PVC film + 4 plastic protection corners + carton box + closed wooden box optionally. 


within 21 days after deposit

Products Show

2015 Return Air Grille with Aluminum Filter in China

2015 Return Air Grille with Aluminum Filter in China

2015 Return Air Grille with Aluminum Filter in China

2015 Return Air Grille with Aluminum Filter in China

2015 Return Air Grille with Aluminum Filter in China

2015 Return Air Grille with Aluminum Filter in China


1, What's size do u have for round type diffuser?

A: We have face size from 150mm to 550mm,neck size from 250mm to 400mm


2, Do u still have other types ?

A: Yes, we have round diffuser/ rectangle diffuser/ linear grilles/ baseboard diffusers,etc


3, What's the most early delivery time?

A: Within 25 days for each 40'fcl

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- Inquire about price/MOQ

Q:What is the purpose of a two-stage compression refrigeration cycle?
Reduce the pressure ratio, avoid and reduce the loss caused by the high pressure ratio
Q:What are the system components of condensers?
After the liquid refrigerant absorbs heat by cooling objects in the evaporator, vaporized into high temperature low pressure steam, steam compressor suction, compressed into high temperature and high pressure discharged into the condenser, the condenser to a cooling medium (water or air) heat, condensing high-pressure liquid, through the throttle valve throttle for low temperature and low pressure refrigerant enter again the evaporator absorbs heat of vaporization, achieve the purpose of refrigeration cycle
Q:What are the technical parameters of the compressor?
The power of the input motor is the electrical power consumed by the compressor Pel, the unit is kW. Electrical efficiency * is the ratio of the power to the electrical power of the isentropic compression theory, which is used to assess the degree of perfection of the input power of the motor
Q:How many types of drive are there in an air conditioner compressor?
At present, scroll compressors have absolute advantages in the field of cabinet air conditioners. In the field of automotive air conditioning, the refrigeration coefficient of scroll compressor has reached 2, showing a strong competitive edge. The development of scroll compressor is to expand its refrigeration range, further improve efficiency, use alternative refrigerants and reduce manufacturing costs and so on.
Q:What is the function of the refrigerator compressor?
The Freon is pressurized by the compressor in the gas state. After pressurization, the condenser flows through the throat to the back of the refrigerator, and then condenses into liquid by the heat dissipation of the radiator (after the material is compressed and the temperature is raised)
Q:What are the condensers made of?
Such as solenoid valves, dispensers, dryers, heat collector, fusible plug, pressure controller and other components, they are in order to improve the economy of operation, reliability and safety setting.
Q:What are the types of compressors?
The sliding vane compressor is a rotary variable displacement compressor, whose axial slide slides radially on the rotor which is eccentric with the cylinder block. The air trapped between the slides is compressed and expelled
Q:What is the function of the hydraulic differential controller in the compressor?
When the oil pressure drops to insufficient to make the compressor work safely, it has not been restored to the set oil pressure value during the delay setting
Q:What is the Basic accessories for air conditioners?
Sight glass,throttle valve,Compressor, evaporator, condenser and expansion valve
Q:What is the working principle of the condenser?
Single stage vapor compression refrigeration system, is composed of four basic components of the refrigeration compressor, a condenser, a throttling valve and an evaporator, between them with pipe connected to form a closed system, the refrigerant in the system continuously circulating flow, change, heat exchange with the outside world.

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