skip to Main Content

Fusible Valves

Fusible link valves are also known as thermal shut-off valves. They are an automatic shut-off valve that cuts of any gas or liquid in the pipeline once a fire is present. The fusible link topwork assemblies are more commonly installed on ball valves and offer the best possible performance in any industrial or commercial application.

Bi-Torq Fusible-Link

Fusible Link Automatic Shut-Off Valves

Manufacturers: Bi-Torq

Our fusible link assemblies are FM approved, which means BI-TORQ Valve Automation’s assemblies are a first-tier recommended fire protection product.

Our customized fusible link shut-off valves (also referred to as thermal shut-off valves) are ideal for any pipeline handling flammable liquids, oils or gasses. With OSHA, Factory Mutual (FM) and insurance companies requiring that automatic shut-off valves be used with this type of media, our valves are a necessary part of any fire protection system.

Here are some of the standard features:

  • Automatic shut-off in case of fire.
  • Fail closed configuration.
  • API-607 fire safe design on all valves.
  • Valve can still be manually operated even while spring pack is armed.
  • Weatherproof spring pack and stainless steel top plate for maximum corrosion resistance.
  • Links available from 165 F. To 360 F.
  • Can retrofit to customer owned valve.

Options available

  • Valves for automatic shutdown from a low voltage signal.
  • Switches for remote indication.
  • Special coatings.
  • Fail open configuration.


  • Rated Operating Pressure: 285 – 6,000 PSI
  • Size Range: 1/4″ – 2″ NPT, 1/2″ – 6″ Flanged (larger sizes available)
  • Applications: Any manufacturing process that involves flammable liquids, oils or gases.
  • Approvals: FM (Ulc optional)
Back To Top