Your Global Authority In Hazardous Areas
Your Global Authority In Hazardous Areas
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For operations within hazardous environments where flammable gases, vapors, or liquids are present under normal conditions, standard ventilation equipment is a significant ignition risk. Our selection of Class 1 Division 1 (C1D1) fans provides the certified, high-performance ventilation required to ensure safety and compliance. Each fan in our catalog is specifically engineered and rigorously tested to operate safely in the most volatile atmospheres, preventing catastrophic accidents by eliminating potential ignition sources. Trust our expertly curated collection to meet the stringent demands of your facility’s safety protocols.
A Class 1 Division 1 fan is an explosion-proof ventilation device designed and certified for safe use in hazardous locations as defined by the National Electrical Code (NEC). The classification breaks down as follows:
Therefore, a C1D1 fan, often called a hazardous location fan, must be constructed to prevent any internal electrical spark or heat from igniting the surrounding atmosphere. This is achieved through specific design features like non-sparking materials and motors that can contain an internal explosion without propagating it to the external environment.
Our Class 1 Division 1 fans are built with safety and durability as the primary focus. They incorporate critical design elements to meet and exceed regulatory standards for hazardous environments.
The use of certified C1D1 fans is mandatory in a wide range of industrial settings where atmospheric hazards are a part of daily operations. These fans are essential for safely ventilating, exhausting fumes, and circulating air.
Selecting the correct fan is crucial for both safety and operational efficiency. Before purchasing, assess your specific requirements:
At Intrinsically Safe Store, we are more than just a supplier; we are your partner in hazardous area safety. We understand the critical importance of using correctly certified equipment. Our team provides expert guidance to help you select the right ventilation solution, ensuring your purchase is not only compliant but perfectly suited to your application. With a comprehensive inventory of certified fans ready for shipment, we help you mitigate risks and maintain a safe working environment without delay.
While both are for hazardous areas, they use different protection methods. Intrinsic Safety (IS) limits the electrical and thermal energy within a device to a level below what can cause ignition. Explosion-proof equipment is designed to contain an internal explosion within its enclosure, preventing it from igniting the surrounding hazardous atmosphere. For equipment with high power requirements like fan motors, the explosion-proof method is the standard. Thus, fans for these areas are correctly termed “explosion-proof fans” or “hazardous location fans.”
Yes, you can. Equipment certified for a more hazardous location (Division 1) is always permissible for use in a less hazardous location (Division 2) of the same class. However, you cannot use a Division 2 rated fan in a Division 1 area. While using a C1D1 fan in a C1D2 environment offers a higher safety margin, it may also come at a higher cost, so it’s a decision based on your facility’s safety standards and budget.
Class 1 Division 1 fans are most commonly referred to as “explosion-proof fans.” Other widely used terms include “hazardous location fans,” “hazardous area ventilation fans,” or simply by their rating, such as “C1D1 fans.”
The price of a Class 1 Division 1 fan can range from several hundred to many thousands of dollars. The cost is influenced by factors such as the fan’s size (CFM rating), motor horsepower, construction materials, specific certifications (e.g., UL, ATEX), and additional features. The stringent engineering, testing, and certification processes required for these fans contribute to their higher cost compared to standard industrial fans.
Hazardous location fans are constructed with specific materials to prevent ignition. A key feature is the use of non-sparking materials for the fan blades and shroud, typically cast aluminum. This prevents mechanical sparks if the blade were to come into contact with the housing. The motor enclosure is built from robust materials like cast iron or heavy-gauge steel, designed to withstand and contain the force of an internal explosion.
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