At Vulcan Spring, we understand that quality and dependability are paramount when it comes to designing life-sustaining and industrial HVAC dampers that provide ventilation and prevent the spread of smoke and fire. Our highly-reliable springs can help ensure that your static, dynamic, and combination fire and smoke dampers provide your customers and their buildings with the safety and peace of mind they deserve.
When you work with us you’ll see how we go Beyond the Spring™ by utilizing our vast design experience to manufacture high-quality, custom springs or wire forms that are right for your application. Our springs help ensure your products pass rigorous UL safety tests and get approved for use.
Most Commonly Used Springs in Fire Dampers
Constant Force Springs
Constant Force Springs or Conforce® Springs can be used to actuate metal curtains within fire dampers, which helps prevent the spread of smoke or fire in ductwork. Conforce springs provide a consistent and highly reliable force over the spring’s travel length. High force output and small space requirements combined with smooth extension and retraction, counterbalancing, and tensioning capabilities make them an ideal option for use within fire dampers.
Conforce springs are typically crafted from Type 301 stainless steel, but other materials may be used when required. They can be custom-made with a variety of desired end details and mounting methods, depending on your needs. Other applications they’re used in include aerospace and defense, medical devices and healthcare, windows and window shades, automotive and transportation, and point-of-purchase displays.
Spiral Torsion Springs
Spiral Torsion Springs are an alternative to Conforce Springs to close curtain blades within a fire damper. They are commonly produced from flat steel and are characterized by the symmetric spacing between coils. A spiral torsion spring will exert a rotational torque, usually through 360° rotation or less. The torque curve of a spiral torsion spring is linear to the degree of rotation. They provide high torque through a small amount of rotation.
Spiral torsion springs are crafted from a wide variety of materials and can be created with many desired end details and mounting methods, depending on your unique needs. In addition to fire dampers, they’re also used in other applications such as medical devices and healthcare, automotive and transportation, and architectural hardware.
Wire forms are used in fire and smoke dampers to close metal curtains and in latching applications. We will work with you to create the ideal solution for mid to mass-produced wire forms. Our various machines are capable of forming virtually any shape to suit your unique application and performance needs. Other applications wire forms are used in include aerospace and defense, medical devices and healthcare, windows and window shades, and automotive and transportation.
Common Types of Fire Dampers
- Dynamic Fire Dampers
- Static Fire Dampers
- Combination Fire & Smoke Dampers
- Ceiling Radiation Damper (CRD)