Product Details
Product Introduction:
Our company manufactures electric airflow control valves—also known as electric dampers or electric regulating valves—which serve as core components in ventilation and air-conditioning systems for automated duct‑airflow regulation. Powered by an electric actuator that rotates the damper blades, these valves enable automatic airflow adjustment, duct opening and closing, and system balancing, and are widely used in building fresh‑air and exhaust systems, air‑conditioning networks, fire‑protection systems, and industrial ventilation ducts.
General technical parameters (taking the mainstream rectangular electric airflow regulating valve as an example):
| Parameter Item |
Specification Details |
| Product Name |
Electric Air Volume Control Valve (Electric Damper) |
| Nominal size |
Rectangular specifications: 200×200 mm to 2000×2000 mm (custom non-standard sizes available); circular specifications: φ100 to φ1000 mm |
| Adjustment method |
Electric actuator-driven, 0–90° continuously adjustable blade angle |
| Control signal |
Discrete control (on/off signals) / Analog control (0–10 V / 4–20 mA) |
| Power Supply Specifications |
DC 24 V (standard) / AC 220 V (optional) |
| Valve body material |
Galvanized steel sheet (standard), with optional stainless steel material (corrosion-resistant) / Humid environment) |
| Leaf form |
Open multiple leaves / Parallel blades with an EPDM sealing strip |
| Air leakage rate |
Air leakage rate in the closed state ≤3% (with sealant clause) |
| Actuator protection class |
IP54 (standard), IP65 customizable |
| Applicable medium |
Ordinary air, fresh air, exhaust air, medium temperature ≤80℃ (high-temperature version up to 200℃) |
| Applicable Pressure |
Under standard operating conditions ≤1500Pa |
| Installation method |
Flanged pipe connections, supporting horizontal installation. / Vertical installation |
| Work environment |
-10℃ to +60℃, relative humidity ≤95% (no condensation) |
Applicable Scenarios and Selection Recommendations:
Core use cases:
1. Automatic airflow regulation and balancing for building ventilation systems and air-conditioning supply-air systems
2. Automatic airflow control for exhaust ducts and dust collection systems in factories and workshops
3. Remote opening and closing, as well as airflow regulation, of kitchen exhaust and waste-gas treatment ducts
4. Intelligent airflow distribution for ventilation ducts in underground parking garages and equipment rooms
5. Integrate with the Building Automation System (BAS) to enable automated control of the ventilation system.
Key considerations for selection:
1. Select based on duct size: Prioritize models that match the duct’s internal diameter to avoid installing reducers, ensuring stable airflow and minimal pressure loss during adjustment.
2. Selection based on control method: For applications requiring only on/off control, choose a discrete‑signal actuator; for applications demanding continuous airflow regulation or integration with a BAS, an analog‑signal actuator must be selected.
3. Operational Condition Matching: In humid or corrosive gas environments, stainless steel is the preferred material; in flammable and explosive gas environments, explosion-proof electric dampers must be selected; for high-temperature flue gases, dedicated high-temperature‑resistant dampers are required.
4. Actuator Torque Matching: Select an actuator with appropriate torque based on the damper size and duct pressure to prevent insufficient torque from preventing the damper from opening or closing properly.
Keywords:
Quote Inquiry
Please fill in your Contact information and your requirements; we will arrange for a professional to contact you!
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.
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.
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.
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.
Mobile phone:+86-188-6602-0062
Email:sddljnhb@163.com
Website:http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
Mobile Access