Fusible Link Ball Valve (Threaded)

Fire safe, fusible link ball valve, NPT, (National Pipe Thread) threaded. Available in stainless steel or carbon steel from sizes 1/4" - 3". All ball valves are API fire safe approved.
Product Description, Dimensions and Specifications PDF

Series FS-10 (Threaded/NPT Fire Safe Ball Valve)

Fire safe, fusible link ball valves are a great way to protect a valve line that is exposed to extreme heat.  With automatic shut off once the FM approved links are broke, the valve will close without human assistance.  All fusible links are FM approved and all valves are API fire safe approved.

Click here to learn more about our fire safety products.

Fire Safe Fusible Link Package with FM Approved Fusible Links*

*Click here for our flanged fusible link (fire safe) ball valve series

  • Valves available from 1/4" - 3"
  • Heavy duty soldering
  • Fusible links are FM approved from 165F - 300F
  • All ball valves are API fire safe approved.
  • Valves can be configured to normally open
  • Valves can also be configured to normally closed
  • Valves are threaded, NPT (National Pipe Thread)
  • Fusible link ball valves can be used (both for open and close) in manual mode
  • *FM approval on actual links only.

Temperature Ratings (FM Approved and Standard Links)

FM Approved Links:  
Issue C Temperature Rating Max. Allowable Temperature Exposure
135° F (57° C) 100° F (36° C)
165° F (74° C) 100° F (38° C)
212° F (100° C) 150° F (66° C)
286° F (141° C) 225° F (107° C)
360° F (162° C) 300° F (149° C)
500° F (260° C) 475° F (246° C)
   
Non FM Approved Links:  
Issue C Temperature Rating Max. Allowable Temperature Exposure
135° F (57° C) 100° F (36° C)
165° F (74° C) 100° F (38° C)
212° F (100° C) 150° F (66° C)
286° F (141° C) 225° F (107° C)
360° F (162° C) 300° F (149° C)
536° F (280° C) 475° F (246° C)

Watch Our Fusible Link Fire Safe Valve Video:

Fusible Link Installation Guide

Fusible Link With Gearbox

  1. Remove the red safety link and disengage the gearbox to activate valves (armed).
  2. Fusible links should be changed annually.
  3. The valve can not be manually operated, it must remain open 100%
  4. Do not tighten nuts on to the fusible links.  Doing so could cause a malfunction
  5. Keep the red link handy for valve maintenance.

Fusible Link Without Gearbox

  1. Remove the red safety link after installation
  2. Fusible links should be changed annually.
  3. The valves can be manually operated.
  4. Do not tighten nuts on to the fusible links.  Doing so could cause a malfunction
  5. Keep the red link handy for valve maintenance.

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Valve Product Catalog

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