Key Features & Benefits
- Fast, Reliable Shutdown
Rapidly cuts off intake air to stop engine runaway safely and efficiently. - Wide Temperature Range
Designed for reliable operation from -40°C to +125°C—ideal for harsh environments. - OEM Certified Performance
Tested to stringent standards for shock, vibration, corrosion resistance, and lifecycle durability.
Rated IP67/IP69K for ingress protection. - Proven in the Field
Widely used and trusted by leading engine manufacturers worldwide. - Flexible Operation Options
- Optional valve position switch
- Manual override capability
- Relay enclosure box option with valve open indication
- Robust Construction
Built from anodized aluminum with Viton seals for excellent corrosion resistance and long service life. - Compact & Easy Installation
Fits seamlessly into modern low-emission diesel engine systems. - Low Maintenance Design
- Field-serviceable components for reduced downtime
- Simple manual reset via top handle
- Engineered for Tough Conditions
High resistance to water, dust, and pressure washing thanks to IP69K rating—perfect for marine and industrial use.
Chalwyn Model XT Positive Air Shutoff Butterfly Valve
Reliable Protection Against Diesel Engine Runaway
The AMOT XT Air Intake Shut Off Valve is a next-generation butterfly-style solution designed to protect diesel engines from runaway events. By rapidly shutting off the engine’s air supply, the XT valve stops combustion instantly—helping to prevent critical damage, safety risks, and costly downtime.
Runaway conditions can occur when external fuels such as oil mist or gas vapors enter the engine, or due to excessive fuel injection. The XT valve provides a fast and dependable shutdown response in these scenarios, ensuring safe and controlled engine stoppage.
When combined with the Revguard 2 speed switch and activation kit, the XT valve becomes part of a fully automatic overspeed shutdown system trusted by OEMs worldwide in demanding safety applications.
