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XTB Air Shut Off Valve with Custom Flanges


The AMOT XTB product range uses the best available technology to shut down a runaway diesel by positively choking off engine intake air. The valve operates as part of a fully automatic overspeed shutdown system when paired with our Revguard 2 speed switch and activation kit. Actuation of the XTB solenoid rapidly closes the valve’s butterfly disc which shuts off intake air flow into the engine. The XTB range is available in several sizes and optional custom flanges. It is manufactured from corrosion resistant, RoHS compliant materials that offer toughness under extreme temperatures and resistance to corrosive environments. The XTB valve can be hard-mounted to engine intake systems, and is tested to strict OEM standards for shock, corrosion, vibration, and life cycle.


  • IP69 rated for resistance to dust
  • Withstands high temperature water jets
  • Field-serviceable electrical components
  • Compatible for modern low emission diesel engines
  • Compact design
  • Simple manual reset by turning top handle
  • Suitable for cold operating environments down to -40oC
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Size (in) 2.5"
Size(mm) 65
End Connection Custom
Actuation Pneumatic, 24VDC, 12VDC
Position Indication Available Yes
Connectors TBD
Position Indication Logic Valve Open - Switch Open
Side Left
Elbow Kit Valve Only (No Elbow)
Style Butterfly
Max Air Intake Temp (F) 257
Min Air Intake Temp (F) -40
Max Pressure (psi) TBD
IP Protection IP69K & IP67
Hazardous Location Certification No
Power To Close or Energize To Run (Fail Safe) Power-to-Close
Reset Auto Reset