Fire Safe Fusible Link Assemblies for Automatic Safety Shut-off
Manufactured by BI-TORQ Valve Automation, USA
A crucial component in any fire protection system our customized fusible link shut-off valves (also referred to as “thermal shut-off valves”) are ideal for any pipeline handling flammable liquids. With OSHA, Factory Mutual (FM) and insurance companies increasingly requiring that automatic shut-off valves be used in these applications, the need for our product is greater than ever.
Our complete line of API 607 certified quarter-turn valves suit a wide range of applications. Carbon and stainless steel ball valves are available in 1/4” through 6” sizes with ANSI flanges and NPT, socket weld or BSP ends. Fire safe high performance butterfly valves come in 2” through 24” sizes.
Fusible Link Assemblies Features
- Automatic shut-off in case of fire
- FM -Approval on most assemblie
- API 607 fire safe approval on all ball and butterfly valves
- Valve can be operated even while spring pack is armed
- UL or FM -approved links available
- Heavy duty arming device
- Factory assembled and tested
- Link temperatures from 165°F to 360°F
- Fail open or fail closed orientations for a variety of applications
Fusible Link Assemblies Features Applications
- Tank Farms
- Petrochemical
- Pharmaceutical
- Fueling Stations
- Jet Fuel/Airports
- Biodiesel
- Fire Suppression Systems
- Paint Applications
- Diesel Fuels
- Natural Gas Lines
Fusible Link Assemblies Advantages
- VY Duty Spring Packs - The armed spring pack features weatherproof sealed spring housing and corrosion resistant epoxy paint. The reliable low stress clock springs assure quick closing action when the fusible links yield.
- Customized Mounting Hardware - A heavy-duty gauge bracket and stainless steel top plate provide the durable, secure construction that BI-TORQ® Valve Automation products are known for. An all stainless bracket, coupling, arming plate and hardware kit also are available.
- Factory Assembled - All BI-TORQ® Valve Automation fusible link assemblies are assembled by factory-trained personnel. The units then are armed with a protective safety link for shipping purposes.
- De-cluchable Manual Override - Select models available with a de-clutchable gear operator to arm the assembly or to operate the valve once the links are disengaged.
- Reliable Fusible Link - BI-TORQ® Valve Automation fusible links are designed to remain secure until releasing the spring pack when the desired temperature is reached. Soldered fusible links are available in these temperature ranges
Fusible Link Types
- FL-1: For 05 through 10 spring packs
Factory Mutual approved; UL and C-UL Listed - Minimum Continuous Load: 5 lbs. (2.3 kg)
- Maximum Continuous Load: 50 lbs. (22.7 kg)
- Fusible Link Halves: Stainless Steel
- Fusible Assembly: Solder, Copper, Stainless Steel
Note: Model FL-1 Fusible Links are not rated for use in corrosive atmospheres
K: for 12 through 14X spring packs
UL listed- Minimum Load: 3 lbs. (1.36 kg)
- Maximum Load: 50 lbs. (22.68 kg)
- Corrosion resistant bronze construction
WS: for 14 through 20 spring packs
WS-style links are used primarily on the BT series design. Links are stacked to provide sure holding until yield temperature is reached
Note: Can not be used on FM approved assemblies
Automatic Firing Link
Our newest innovation allows an operator to manually trigger the armed fusible link when a voltage signal generates the heat necessary to cause the link to yield. This lets plant personnel shut down flammable liquid lines immediately even if a fire has started in another area. Please contact our technical sales personnel for more application information.
Note: Not available on all units.
