The Chalwyn XT 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 XT solenoid rapidly closes the valve’s butterfly disc which shuts off intake air flow into the engine.

The XT range is available in a variety of sizes ranging from 3.5” to 8” diameter to fit your specific applications.

It is manufactured from corrosion-resistant RoHS compliant materials that offer toughness under extreme temperatures and resistance to corrosive environments.

Our valves are tested to strict OEM standards for shock, corrosion, vibration and life cycle.

Features and Benefits:

  • 12V or 24V electric actuation
  • Compatible for modern low emission diesel engines
  • Compact design
  • Easy to install and maintain
  • Simple manual reset by turning top handle
  • Can be mounted post-intercooler on turbocharged engines
  • Corrosion-resistant aluminium alloy construction
  • Designed to suit intake pressures up to 4.0 bar
  • Suitable for cold operating environments down to -40°C
  • Optional position sensing switches with either failsafe or connected when closed configuration
  • IP69K rated for resistance to dust and ability to withstand high temperature water jets
  • Field-serviceable electrical components