Centrifugal Vent Fans and Wind Powered Ventilation Fans
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Durable Roof-Mounted Protection for HVAC Systems These heavy-duty weather caps from PennBarry provide reliable, roof-mounted protection for both air intake and exhaust ventilation systems. Constructed entirely from premium spun aluminum - including the cap, airshaft, and mounting base - they are engineered to withstand harsh environmental conditions while maintaining optimal, unrestricted airflow. To protect your facility's ductwork and interior, the integrated airshaft features a built-in birdscreen, effectively preventing wildlife and large debris from entering the system. The product line is divided into two versatile configurations to suit your project needs: the WCF series (flush mount, standard throat matching) and the WCC series (which allows for the installation of roof dampers and requires a 12" high curb for motorized options)
Reliable, Energy-Free Roof Ventilation for Mid-Sized Facilities This 18-inch Wind-Driven Turbine Exhaust Ventilator provides continuous, energy-free roof ventilation for commercial and industrial buildings. It is built with a sturdy steel housing that features a galvanized finish for enhanced durability and corrosion resistance. Delivering a robust 1,200 cfm of airflow at wind speeds as low as 4 mph, it efficiently extracts hot, stale air from your facility. The unit operates on a highly efficient bearing system featuring an oiless bronze upper bearing and a lower thrust-type ball bearing. To ensure maximum stability in harsh weather conditions, it is structurally reinforced with external steel bracing.
This compact Wind-Driven Turbine Exhaust Ventilator provides continuous, energy-free ventilation for smaller enclosures, sheds, and targeted roof sections. Built with a rugged steel housing featuring a galvanized finish, it is designed to resist corrosion and withstand harsh outdoor elements. Despite its smaller 6-inch throat diameter, it efficiently extracts air, delivering 147 cfm of airflow at wind speeds as low as 4 mph. The unit is structurally reinforced with external aluminum bracing. For smooth, frictionless rotation, it relies on an advanced bearing system comprising a lower thrust-type ball bearing and an oil-less bronze upper bearing.
Energy-Free, High-Capacity Roof Ventilation This Wind-Driven Turbine Exhaust Ventilator provides highly efficient, continuous roof ventilation without the need for electricity. Designed for rugged commercial and industrial environments, it features a heavy-duty housing constructed from galvanized steel. Engineered to perform even in low wind conditions, it achieves an impressive airflow of 2,350 cfm at wind speeds of just 4 mph. The unit is supported by external steel bracing to withstand harsh weather, and it operates smoothly thanks to a dual-bearing system that includes a lower thrust-type ball bearing and an oilless bronze upper bearing.
The Breidert RED12 steps up in size and capacity to handle the ventilation demands of larger machinery rooms, industrial spaces, and expansive commercial roofs. With a significant 33-1/8" overall diameter, this direct drive centrifugal exhauster moves substantial volumes of air efficiently. The curb cap features an integral deep spun inlet with prepunched mounting holes, guaranteeing a perfect fit to the roof curb and drastically reducing installation time. It also includes a safety disconnect and is backed by an AMCA seal for air and sound ratings.
Engineered for systems experiencing high static pressure up to 1", the Breidert RED10 delivers reliable performance and longevity. The deep spun inlet guarantees optimum air and sound performance, making it ideal for retail stores, recreational buildings, and healthcare facilities where noise levels must be managed. This unit is equipped with motor isolators and features a quick-access motor compartment to simplify routine maintenance. It operates safely in ducted systems thanks to its nonoverloading centrifugal wheel design.
The Breidert RED8 series (including RED810, RED812, and RED816 models) provides robust direct drive centrifugal exhaust capabilities for roofs requiring short duct runs and highly efficient operation. The heavy-gauge motor support ensures rigidity and strength, while the spun aluminum exterior provides excellent weather resistance. Like all RED series models, the RED8 is factory run and tested to assure dependable operation. It includes a conduit passage for easy electrical connection from below the roof, an integrated safety disconnect, and a standard birdscreen.
The Breidert RED6 is a direct drive centrifugal roof exhauster designed for high static pressure applications. Featuring a spun aluminum exterior, this unit provides an attractive appearance while delivering reliable exhaust ventilation for commercial and institutional buildings such as hospitals, schools, and offices. It is equipped with a nonoverloading backward inclined wheel that ensures maximum efficiency and safe operation in both ducted and nonducted systems. The RED6 comes standard with a birdscreen, an open drip-proof motor, a safety disconnect switch, and neoprene motor isolators to reduce vibration and sound.
The S&P VENT-250NK is the highest capacity fan in the standard NK series, manufactured from high-grade corrosion-resistant pressed galvanised steel. Designed for heavy-duty applications, it is supplied as standard with a terminal box and a robust mounting foot. The system relies on an enclosed, single-phase external rotor motor and an injection-moulded plastic backward-curved nonstalling impeller. System longevity is guaranteed by the motor's IP44 rating, class B insulation, reliable ball bearings, and safety thermal overload protection. The fan's operational output is fully speed controllable by tension.
The S&P VENT-200NK is a powerful in-line duct centrifugal fan manufactured from high-grade corrosion-resistant pressed galvanised steel, designed for rigorous commercial ventilation. It is supplied as standard with a convenient terminal box and a robust mounting foot. It features a high-performance, single-phase external rotor motor and an injection-moulded plastic impeller designed with a backward-curved nonstalling profile. The motor is fully protected with IP44 status, class B insulation, safety thermal overload protection, and high-quality ball bearings. This single-phase fan is speed controllable by tension for precise airflow management.
Engineered for increased airflow demands, the S&P VENT-150NK is an in-line duct centrifugal fan manufactured from high-grade corrosion-resistant pressed galvanised steel. It comes supplied as standard with a terminal box and a robust mounting foot. The unit utilizes a single-phase external rotor motor combined with an injection-moulded plastic backward-curved nonstalling impeller. To ensure operational safety, the motor includes an IP44 rating, class B insulation, ball bearings, and built-in thermal overload protection. Operators can easily adjust the output, as the fan is speed controllable by tension.
The S&P VENT-125NK is a highly durable in-line centrifugal fan manufactured from high-grade corrosion-resistant pressed galvanised steel. To facilitate quick installation, it is supplied as standard with a terminal box and a robust mounting foot. It operates using an enclosed single-phase external rotor motor and a factory-matched backward-curved nonstalling impeller made from injection-moulded plastic. The motor is built for safety and durability, featuring IP44 protection, class B insulation, ball bearings, and safety thermal overload protection. This single-phase model is also speed controllable by tension.
The S&P VENT-100NK is an efficient in-line duct centrifugal fan manufactured from high-grade, corrosion-resistant pressed galvanised steel. It is supplied as standard with a terminal box and a robust mounting foot for easy integration into existing systems. This model features an enclosed, single-phase external rotor motor paired with a factory-matched, backward-curved nonstalling impeller. For long-lasting reliability, the motor features an IP44 rating, class B insulation, ball bearings, and safety thermal overload protection. The impeller is manufactured from injection-moulded plastic. Furthermore, the fan's speed is fully controllable by tension.
The S&P VENT-315NK is a premium in-line centrifugal duct fan engineered for robust performance in demanding ventilation systems. Manufactured from high-grade, corrosion-resistant pressed galvanized steel, this fan is built to withstand harsh operating environments while delivering reliable airflow. Designed for seamless integration into 315mm round ductwork, it features an external rotor motor with thermal protection, ensuring safety and longevity. With a powerful airflow capacity of 882 CFM and a maximum static pressure of 460 Pa, it is the ideal solution for commercial exhaust and supply air applications in warehouses, workshops, and large office buildings.