QUALITYProducts.
SINCE 1948.

The Go-To Industrial Supply Fan for Reliable Airflow

Building on our heritage since 1948 and decades of experience in the industrial ventilation market, Triangle Engineering’s RVI Series supply fans are designed for wall mounting to push fresh air into industrial buildings, ensuring a safer and more comfortable working environment. These belt-drive fans are ideal for facilities that require dependable airflow solutions.

Key Features & Benefits

• Wall-mounted supply design
  The RVI Series is engineered for installation on an exterior wall, drawing in large volumes of outside air. This pressurizes interior spaces for consistent ventilation and improved air quality.
• Belt-drive performance
  The RVI Series utilizes a belt-drive system for reliable, efficient air movement. Models with open drip proof (ODP) or totally enclosed (TE) motors up to 1.5 hp come equipped with an automatic belt tensioner for reduced maintenance.
• Wide range of sizes
  Blade diameters available in 24″, 30″, 36″, 42″, 48″, 54″, and 60″—making it easy to find a model that meets your specific space and airflow requirements.
• Flexible motor configurations
  Choose from 1/3 hp up to 5 hp in open drip proof (ODP), totally enclosed (TE), or hazardous location (HL) motors. Standard voltages include 115V or 230V (single-phase) and 230V or 460V (three-phase), with additional voltages—such as 277V, 208V, 415V, and 575V—available upon request.
• Easy in-building servicing
  RVI supply fans are designed so belts, motors, and pulleys can be accessed and maintained from inside the building, minimizing downtime and labor costs.
• Ships fully assembled and tested
  Every fan leaves our factory fully assembled and rigorously tested, speeding up on-site setup and ensuring immediate performance.
• Rolled inlet venturi
  Each RVI fan includes a rolled inlet venturi finished with a durable polyester powder coat. This design helps improve overall airflow efficiency.
• Shipped with an integrated wall box
  Every RVI model arrives with a factory-installed wall box, ensuring a straightforward mounting process on any exterior wall. This feature streamlines installation and saves valuable time.

Technical Specifications

• Blade diameters: 24″, 30″, 36″, 42″, 48″, 54″, 60″
• Motor horsepower: from 1/3 hp up to 5 hp
  • Standard increments typically include 1/3, 1/2, 3/4, 1, 1.5, 2, 3, and 5 hp (other sizes may be available upon request)
• Motor enclosure: available in ODP, TE, or HL
• Automatic belt tensioner: included on ODP or TE models up to 1.5 hp
• Standard voltages:
  • Single-phase: 115V, 230V
  • Three-phase: 230V, 460V
    (Additional options: 277V, 208V, 415V, 575V)
• Drive access: belts, pulleys, and motor are serviceable from inside the building
• Fully assembled & factory-tested: ready for immediate installation and operation
• Construction: features sturdy, industrial-grade materials and maintenance-friendly details so the fan continues to operate reliably in tough environments
• Ambient temperature rating: suitable for applications up to 110°F. For environments regularly exceeding 110°F, higher ambient temperature motors may be available—contact us for details.
• Performance data: models cover airflow capacities ranging from approximately 4,190 CFM up to 41,000 CFM. For detailed performance at various static pressures, see the Triangle Engineering product catalog.

Available Accessories

Triangle Engineering offers a full line of accessories to complement RVI Series supply fans, ensuring an optimal installation for your unique application. The following optional add-ons can be tailored to meet your environmental and operational needs:

• Rainhoods
  Provide a protective cover against exterior elements, keeping critical fan components dry.
• Guards
  Add a protective barrier to safeguard personnel and equipment by enclosing moving parts. OSHA requires guarding if any part of the fan is mounted within 7 feet of floor level.
• Shutters/Dampers
  Offered in standard sizes or custom increments (as small as 1/8″) to fit your exact opening. They regulate airflow, limit backdraft, keep rain out when fan is turned off and maintain optimal building pressure when the fan is off.

Ideal Use Cases

• Manufacturing plants: Introduce fresh air to maintain safe temperatures and help dissipate fumes or airborne contaminants.
• Warehouses & distribution centers: Alleviate hot, stuffy interiors to enhance employee comfort and productivity.
• Automotive & aerospace facilities: Supply clean air to specialized workstations where dust and fumes must be carefully managed.
• Data/Crypto mining containers: Typically used as a supply fan to push fresh air into a building, but in container applications they can also be set up as an exhaust fan. This allows fresh air to be pulled across mining equipment while enabling easy belt, pulley, and motor maintenance from outside the container—especially valuable where interior space is at a premium.
• Large commercial buildings: Improve ventilation in settings like retail stores, indoor sporting venues, or convention centers.

Why RVI Series?

Adequate ventilation is necessary for employee and building health. In addition, many building codes require adequate ventilation to ensure acceptable indoor air quality. ASHRAE Standard 62.2 provides guidelines for ventilation for indoor air quality.

1. Reliability and durability
   Built in the USA with a blend of domestic and foreign components, Triangle Engineering constructs the RVI Series to meet the toughest industrial standards, ensuring dependable ventilation for years.
2. Simple maintenance
   The ability to service belts, motors, and pulleys from inside the facility reduces the need for outdoor equipment and complex procedures.
3. Enhanced workplace conditions
   By supplying fresh air, RVI fans help create a pressurized environment that stabilizes indoor temperatures and air quality, boosting employee comfort and safety.
4. Flexible motor choices
   With horsepower options spanning 1/3 hp to 5 hp, plus ODP, TE, and HL enclosures, there’s a configuration for every operational requirement.
5. Balanced airflow with an exhaust fan
   Intake fans are necessary if you have needs for large quantities of air movement. The RVI intake fans can be used to balance airflow to maintain acceptable levels of building static pressure. For ideal indoor air quality, consider pairing your RVI Series supply (intake) fan with a Triangle Engineering exhaust fan. This balanced approach continuously replaces stale or contaminated air with fresh air, ensuring proper building pressure and comprehensive ventilation throughout your facility.

Why Choose Triangle Engineering?

A Legacy of Quality Since 1948

For over seven decades, we’ve specialized in crafting top-tier ventilation products that stand up to demanding industrial environments. Our fans are factory-assembled, rigorously tested, and supported by experienced customer service.

Customized Solutions Available

Not seeing exactly what you need? We can customize our RVI Series intake fans to meet your specific airflow requirements, unique motor setups, specialized construction or non-standard materials like stainless steel or aluminum. Contact us to learn how we can optimize your industrial exhaust needs.

Related Products

• RV Series: Our commercial-grade wall mount panel supply fan
• FHI Series: Our severe duty panel supply or exhaust fan

Get Your RVI Fan Today

Don’t let stale, stuffy air slow down your operations. The RVI Series supply fan delivers robust air movement to ensure a safer, more productive environment—no matter how demanding your industrial application.

Ready to enhance your facility’s ventilation? Request a quote or contact us to learn more about the RVI Series and discover how it can transform your workspace.