SHANDONG DELIN

Product Details

Product Introduction:
The ceiling‑mounted air curtain is a ductless, through‑flow air‑curtain device whose body is recessed into the suspended ceiling, with only the air outlet visible. Unlike conventional top‑mounted units that expose the entire unit, this model conceals the main housing above the ceiling, delivering a clean, unified aesthetic. The air outlet is flush with the ceiling or features only a narrow grille, seamlessly blending into the interior design. Equipped with a through‑flow impeller, it provides uniform, gentle airflow and low noise levels, making it an ideal choice for spaces where both spatial aesthetics and quiet operation are paramount—such as hotel lobbies, high‑end office buildings, branded retail stores, conference centers, and banks.
Main functions of the Products:
1. Precise shielding of cold and hot radiation: During winter operation with hot water, a thermal air flow is generated along the curtain wall, directly counteracting the downward‑moving cold air currents on the glass surface, thereby eliminating condensation at the window edges and alleviating uncomfortable cold sensations. In summer, when chilled water is circulated, it absorbs heat entering from the exterior walls, reducing thermal radiation.
2. Efficient Cooling and Heating: Using a built-in copper-tube, aluminum-fin heat exchanger and the chilled or hot water supplied by the air-conditioning system, the unit heats or cools the incoming air before delivering it into the room, thereby maintaining a constant indoor temperature.
3. Downward Airflow Pattern (Forced Convection Type): Equipped with a low-noise built-in fan, it delivers the heat-exchanged air along the floor or upward through slotted grilles; airflow is adjustable, and the gentle stream ensures high comfort.
4. Concealed and aesthetically pleasing: The unit is fully recessed below the floor, with only a linear grille or decorative panel flush with the surface, ensuring unobstructed views and preserving the interior aesthetic. The panel can be customized to match the chosen finish material.
5. Independent Zone Control: Each unit can be equipped with an electric valve and a standalone thermostat, enabling independent temperature control for different orientations and zones to ensure energy-efficient operation.
6. Low Noise (Forced Convection Type): Equipped with a specially designed cross-flow or axial fan, it operates quietly without disturbing offices or residential spaces.
7. Safety Protection: The in‑trough grating provides sufficient load‑bearing capacity to withstand pedestrian traffic and the pressure of furniture wheels, while its internal wiring is waterproof and moisture‑resistant, meeting floor‑mounting standards.

Product model specifications:

Ceiling-mounted air curtain

Model number

Trough length (mm)

Groove width × Groove depth (mm)

Cooling capacity (W/m)

Heating capacity (W/m)

Inlet and outlet pipe diameter

Condensate interface

Grille material

Net weight (kg/m)

DF-N-120

Custom-made on demand

120×90

120

180

DN15

There is

Aluminum alloy

8

DF-N-180

Custom-made on demand

180×110

180

270

DN15

There is

Aluminum alloy /Stainless steel

11

DF-N-240

Custom-made on demand

240×130

250

380

DN15

There is

Stainless steel

15

 


Keywords:

Quote Inquiry

Please fill in your Contact information and your requirements; we will arrange for a professional to contact you!

  • How many products do you need?
  • What more information do you need to know?
Submit

Cross-flow air curtain machine


The cross‑flow air curtain employs a large‑diameter, slender cross‑flow impeller—also known as a tangential fan—directly driven by a single‑phase motor to generate a wide, planar, high‑velocity airflow. It is installed above or on the side of doorways. The unit features a flat, rectangular profile with a much reduced depth compared to centrifugal models, allowing it to seamlessly integrate into various ceiling designs. It is particularly well suited for spaces with limited headroom and where aesthetics and quiet operation are paramount, such as shopping malls, supermarkets, restaurants, office buildings, banks, hospitals, and residential garages.

Cooling coil


Our company’s surface-type coolers are among the core heat-exchange devices in air-conditioning and ventilation systems. They are primarily used to cool and dehumidify air, and can also be switched to hot-water or steam mode during winter to provide air heating. By utilizing a refrigerant (such as chilled water, refrigerant, or brine) or a heat-transfer medium (such as hot water or steam) flowing inside the tubes, these units facilitate forced‑convection heat exchange with the air flowing outside the tubes, thereby regulating air temperature and humidity. As the central heat-exchange components of chiller units, fresh-air handling units, fan coil units, and other equipment, they offer high heat-exchange efficiency, flexible installation, and broad compatibility.

Fresh air ventilator


The ceiling‑mounted fresh air ventilator (ceiling‑type air handling unit) is a central air‑conditioning terminal unit that integrates fresh air exchange, air temperature and humidity control, air filtration and purification, and energy recovery. The unit features a concealed ceiling‑mount installation, suspended within the building’s suspended ceiling. It utilizes chilled water or hot water piping to provide cooling and heating, while simultaneously exhausting indoor stale air and supplying filtered outdoor fresh air. This system not only enhances indoor air quality in enclosed spaces but also regulates air temperature through heat‑exchanger coils, offering both ventilation and central air‑conditioning functions. It delivers energy savings, minimizes floor space occupation, and is widely suited for integration into fresh air systems in commercial, industrial, and large public buildings.

Q-type steam heater


Our company’s Q‑type air heater is an industrial‑grade, forced‑convection heating unit that uses water or steam as the heat transfer medium. It is specifically designed for large‑space applications such as factory and mine workshops, warehouses, large buildings, and drying rooms. The equipment consists of a fan, an electric motor, and a steel finned‑tube radiator integrated into a single unit. Performance tests have demonstrated its stable and reliable operation. By combining “steam heat exchange with forced air supply,” it rapidly heats the air, delivering highly efficient heating and making it one of the mainstream solutions for heating high‑ceiling spaces.