* Automatically stops the engine before excess speed causes damage or flashback.
* Valve resets once the engine has stopped, so the engine is ready for re-starting.
* No speed signal sensing required.
* No external power source required.
* Wide range of sizes available
* Easy to fit by pushing into existing intake hose and securing with standard clips (clamps)
* Easy to adjust speed setting using standard tools
* Tamper resistant to speed adjuster position
* No need to run engine beyond normal speed range during valve adjustment
* Anti-flutter mechanism fitted to valves for small engines to give stable performance
* Can be used in combination with super speed valve fuel shutdown valve for simultaneous automatic air and fuel shutdown
* Integral air filter options available for some smaller models
* Approved by oil companies internationally