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As a star product line of Guangzhou Theodoor Technology Co., Ltd.—a professional high-tech enterprise with over 20 years of experience in R&D and manufacturing of energy-saving equipment—this air curtain stands out with its compliance to strict international standards and innovative design. Designed to create an invisible air barrier that separates indoor and outdoor environments, it effectively maintains temperature stability, purifies air, and blocks unwanted elements while ensuring maximum safety in hazardous areas. With protection level IP55, explosion-proof standard Exd Ⅱ BT4, and insulation level F, this industrial air curtain is built to meet the rigorous requirements of refineries, chemical factories, electronic plants, and other high-risk industrial settings. Exported to more than 80 countries and regions, Theodoor’s explosion-proof air curtain is a trusted choice for businesses prioritizing safety, energy efficiency, and long-term reliability.
At the heart of this product line is its exceptional insulation explosion-proof capability. Certified to Exd Ⅱ BT4 explosion-proof standard, it operates safely in environments with flammable gases, vapors, or dust, minimizing fire and explosion risks. The IP55 protection level ensures resistance to dust ingress and low-pressure water jets, making it suitable for harsh industrial conditions. Complemented by an F-class insulation level, the air curtain maintains stable electrical performance even in extreme temperatures, providing long-lasting protection for both equipment and personnel.
Crafted with galvanized steel featuring a powder-coated finish, the Explosion-Proof Type Series Air Curtain offers unmatched sturdiness and durability. This material choice prevents deformation, corrosion, and wear, ensuring the product withstands the test of time in high-traffic, industrial environments. The robust build aligns with Theodoor’s commitment to precision production—utilizing advanced industrial equipment and detecting instruments in its 30,000-square-meter manufacturing facility in Sino-Singapore Knowledge City—guaranteeing consistent quality and reliability.
Equipped with an optimized high-velocity powerful motor, this industrial air curtain delivers strong, consistent air flow to form an effective air barrier. With air volume ranging from 2800 m³/h to 5000 m³/h and an air velocity of 14 m/s, it efficiently blocks outdoor dust, insects, smoke, and odors from entering indoor spaces. Despite its powerful performance, the air curtain operates quietly thanks to non-isometric quiet impellers and scientific airflow design. Working noise levels as low as <62 dB (for model FB-1509S) create a comfortable environment similar to a standard office, making it suitable for areas where noise reduction is a priority.
Theodoor’s explosion-proof air curtain is designed for energy efficiency, helping businesses reduce electricity consumption by minimizing the loss of indoor cool or warm air. By separating indoor and outdoor temperature zones, it lessens the load on air conditioning systems, resulting in significant energy savings—especially in high-traffic industrial facilities. Optional magnetic door switch technology enhances intelligence: the air curtain automatically starts when the door opens and shuts down after closing, ensuring timely operation and further reducing energy waste. Additionally, a high-density filter net at the air inlet effectively filters dust, bacteria, and other contaminants, maintaining clean indoor air quality.
Model | Dimension (㎜) | Frequency (Hz) | Voltage (v～) | Input Power (W) | Air Volume (m3/h) | Air Velocity (m/s) | Noise (dB) | Net Weignt (㎏) |
FB-1509S | 970×265×352 | 50/60 | 380 | 270 | 2800 | 14 | <62 | 25.5 |
FB-1512S | 1270×265×352 | 50/60 | 380 | 350 | 3900 | 14 | <64 | 31 |
FB-1515S | 1570×265×352 | 50/60 | 380 | 430 | 5000 | 14 | <65 | 38 |
The primary application of the Explosion-Proof Type Series Air Curtain is in industrial settings with explosion risks. It is ideal for refineries, where flammable hydrocarbons are present, and chemical factories handling volatile substances, as its Exd Ⅱ BT4 certification ensures safe operation. Electronic factories with sensitive equipment also benefit from its dust-proof and temperature-maintaining capabilities, preventing contaminants from damaging precision components.
Beyond high-risk areas, this air curtain serves other industrial sectors requiring strict environmental control. Food processing plants use it to block dust and insects, maintaining hygiene standards, while pharmaceutical facilities rely on its air purification function to preserve sterile environments. It is also suitable for precision processing workshops, where stable temperature and clean air are critical for product quality. In all these settings, the air curtain’s sturdy construction and powerful air flow ensure reliable performance under continuous operation.
While designed for industrial use, the product also adapts to commercial-industrial hybrid spaces such as large warehouse entrances, manufacturing plant loading docks, and industrial storage facilities. It effectively blocks outdoor elements, maintains internal temperature, and reduces energy costs in these high-traffic areas. Its compatibility with weak or strong electricity door switches makes it a versatile choice for facilities seeking automated, energy-saving solutions.
The Explosion-Proof Type Series Air Curtain complies with Exd Ⅱ BT4 explosion-proof standard, IP55 protection level, and F-class insulation level. These certifications ensure safe operation in hazardous environments with flammable gases, dust, or vapors, meeting international safety requirements. Additionally, Theodoor products have passed ISO9001, ISO14001, CE, CB, and ROHS certifications, confirming their quality and reliability.
The product line includes three models with varying dimensions and performance:
FB-1509S: 970×265×352 mm, 270W input power, 2800 m³/h air volume, <62 dB noise, 25.5 kg net weight.
FB-1512S: 1270×265×352 mm, 350W input power, 3900 m³/h air volume, <64 dB noise, 31 kg net weight.
FB-1515S: 1570×265×352 mm, 430W input power, 5000 m³/h air volume, <65 dB noise, 38 kg net weight.
All models operate at 50/60 Hz frequency and 380V voltage, delivering consistent 14 m/s air velocity.
By creating a high-speed air barrier, the air curtain prevents the escape of indoor warm or cool air and blocks outdoor temperature extremes from entering. This reduces the workload on heating, ventilation, and air conditioning (HVAC) systems, leading to significant energy savings. The optional automatic door switch technology further enhances efficiency by only operating when needed, minimizing unnecessary power consumption—especially valuable for industrial facilities with frequent door openings.
The explosion-proof air curtain features a durable galvanized steel construction and high-quality components, reducing maintenance needs. The high-density filter net is easy to clean or replace, ensuring consistent air filtration performance. It is compatible with both weak and strong electricity door switch systems, allowing seamless integration with existing building automation setups. Theodoor also provides comprehensive service and support, including product downloads and video guides, to assist with installation and maintenance.
Yes. The product’s galvanized steel powder-coated body and IP55 protection level provide resistance to humidity and corrosion, making it suitable for humid industrial environments such as chemical plants or coastal facilities. Additionally, the DC motor (used in high-performance configurations) offers excellent adaptability to humidity and corrosion, ensuring stable operation even in challenging conditions.
As a star product line of Guangzhou Theodoor Technology Co., Ltd.—a professional high-tech enterprise with over 20 years of experience in R&D and manufacturing of energy-saving equipment—this air curtain stands out with its compliance to strict international standards and innovative design. Designed to create an invisible air barrier that separates indoor and outdoor environments, it effectively maintains temperature stability, purifies air, and blocks unwanted elements while ensuring maximum safety in hazardous areas. With protection level IP55, explosion-proof standard Exd Ⅱ BT4, and insulation level F, this industrial air curtain is built to meet the rigorous requirements of refineries, chemical factories, electronic plants, and other high-risk industrial settings. Exported to more than 80 countries and regions, Theodoor’s explosion-proof air curtain is a trusted choice for businesses prioritizing safety, energy efficiency, and long-term reliability.
At the heart of this product line is its exceptional insulation explosion-proof capability. Certified to Exd Ⅱ BT4 explosion-proof standard, it operates safely in environments with flammable gases, vapors, or dust, minimizing fire and explosion risks. The IP55 protection level ensures resistance to dust ingress and low-pressure water jets, making it suitable for harsh industrial conditions. Complemented by an F-class insulation level, the air curtain maintains stable electrical performance even in extreme temperatures, providing long-lasting protection for both equipment and personnel.
Crafted with galvanized steel featuring a powder-coated finish, the Explosion-Proof Type Series Air Curtain offers unmatched sturdiness and durability. This material choice prevents deformation, corrosion, and wear, ensuring the product withstands the test of time in high-traffic, industrial environments. The robust build aligns with Theodoor’s commitment to precision production—utilizing advanced industrial equipment and detecting instruments in its 30,000-square-meter manufacturing facility in Sino-Singapore Knowledge City—guaranteeing consistent quality and reliability.
Equipped with an optimized high-velocity powerful motor, this industrial air curtain delivers strong, consistent air flow to form an effective air barrier. With air volume ranging from 2800 m³/h to 5000 m³/h and an air velocity of 14 m/s, it efficiently blocks outdoor dust, insects, smoke, and odors from entering indoor spaces. Despite its powerful performance, the air curtain operates quietly thanks to non-isometric quiet impellers and scientific airflow design. Working noise levels as low as <62 dB (for model FB-1509S) create a comfortable environment similar to a standard office, making it suitable for areas where noise reduction is a priority.
Theodoor’s explosion-proof air curtain is designed for energy efficiency, helping businesses reduce electricity consumption by minimizing the loss of indoor cool or warm air. By separating indoor and outdoor temperature zones, it lessens the load on air conditioning systems, resulting in significant energy savings—especially in high-traffic industrial facilities. Optional magnetic door switch technology enhances intelligence: the air curtain automatically starts when the door opens and shuts down after closing, ensuring timely operation and further reducing energy waste. Additionally, a high-density filter net at the air inlet effectively filters dust, bacteria, and other contaminants, maintaining clean indoor air quality.
Model | Dimension (㎜) | Frequency (Hz) | Voltage (v～) | Input Power (W) | Air Volume (m3/h) | Air Velocity (m/s) | Noise (dB) | Net Weignt (㎏) |
FB-1509S | 970×265×352 | 50/60 | 380 | 270 | 2800 | 14 | <62 | 25.5 |
FB-1512S | 1270×265×352 | 50/60 | 380 | 350 | 3900 | 14 | <64 | 31 |
FB-1515S | 1570×265×352 | 50/60 | 380 | 430 | 5000 | 14 | <65 | 38 |
The primary application of the Explosion-Proof Type Series Air Curtain is in industrial settings with explosion risks. It is ideal for refineries, where flammable hydrocarbons are present, and chemical factories handling volatile substances, as its Exd Ⅱ BT4 certification ensures safe operation. Electronic factories with sensitive equipment also benefit from its dust-proof and temperature-maintaining capabilities, preventing contaminants from damaging precision components.
Beyond high-risk areas, this air curtain serves other industrial sectors requiring strict environmental control. Food processing plants use it to block dust and insects, maintaining hygiene standards, while pharmaceutical facilities rely on its air purification function to preserve sterile environments. It is also suitable for precision processing workshops, where stable temperature and clean air are critical for product quality. In all these settings, the air curtain’s sturdy construction and powerful air flow ensure reliable performance under continuous operation.
While designed for industrial use, the product also adapts to commercial-industrial hybrid spaces such as large warehouse entrances, manufacturing plant loading docks, and industrial storage facilities. It effectively blocks outdoor elements, maintains internal temperature, and reduces energy costs in these high-traffic areas. Its compatibility with weak or strong electricity door switches makes it a versatile choice for facilities seeking automated, energy-saving solutions.
The Explosion-Proof Type Series Air Curtain complies with Exd Ⅱ BT4 explosion-proof standard, IP55 protection level, and F-class insulation level. These certifications ensure safe operation in hazardous environments with flammable gases, dust, or vapors, meeting international safety requirements. Additionally, Theodoor products have passed ISO9001, ISO14001, CE, CB, and ROHS certifications, confirming their quality and reliability.
The product line includes three models with varying dimensions and performance:
FB-1509S: 970×265×352 mm, 270W input power, 2800 m³/h air volume, <62 dB noise, 25.5 kg net weight.
FB-1512S: 1270×265×352 mm, 350W input power, 3900 m³/h air volume, <64 dB noise, 31 kg net weight.
FB-1515S: 1570×265×352 mm, 430W input power, 5000 m³/h air volume, <65 dB noise, 38 kg net weight.
All models operate at 50/60 Hz frequency and 380V voltage, delivering consistent 14 m/s air velocity.
By creating a high-speed air barrier, the air curtain prevents the escape of indoor warm or cool air and blocks outdoor temperature extremes from entering. This reduces the workload on heating, ventilation, and air conditioning (HVAC) systems, leading to significant energy savings. The optional automatic door switch technology further enhances efficiency by only operating when needed, minimizing unnecessary power consumption—especially valuable for industrial facilities with frequent door openings.
The explosion-proof air curtain features a durable galvanized steel construction and high-quality components, reducing maintenance needs. The high-density filter net is easy to clean or replace, ensuring consistent air filtration performance. It is compatible with both weak and strong electricity door switch systems, allowing seamless integration with existing building automation setups. Theodoor also provides comprehensive service and support, including product downloads and video guides, to assist with installation and maintenance.
Yes. The product’s galvanized steel powder-coated body and IP55 protection level provide resistance to humidity and corrosion, making it suitable for humid industrial environments such as chemical plants or coastal facilities. Additionally, the DC motor (used in high-performance configurations) offers excellent adaptability to humidity and corrosion, ensuring stable operation even in challenging conditions.
