Diesel Engine Safety Parts
Complete systems to prevent diesel engine runaway in hazardous environments
Diesel engines are often preferred over gasoline in hydrocarbon-rich environments, but they can still become an ignition source if flammable vapors are drawn into the air intake. In these conditions, the engine can begin burning unmetered vapors, causing rapid acceleration and potential overspeed (runaway). This can create hazardous outcomes such as flames from the intake or exhaust, elevated surface temperatures, valve bounce, and sparks.
AMOT diesel engine safety products are designed to reduce these risks by helping prevent runaway and limiting ignition sources in hazardous locations. With more than 45 years of experience, AMOT works with engine manufacturers, oil and gas service companies, and operators to design complete protection systems that improve worksite safety and support modern diesel engine performance requirements.
ENGINEERING UNITS
IMPERIAL METRIC
Air Intake Shutoff Valves
While some companies implement safety protocols to prevent diesel engine runaway, automatic positive air intake shutoff valves are the only reliable method to stop an engine once it has begun to overspeed. These devices work by completely blocking the engine’s air intake system, cutting off the external fuel source and the air required to keep the engine running.
Engine Speed Switches
Speed switches are used to monitor engine RPM in automatic diesel engine overspeed protection systems. In the event of an engine overspeed condition, the speed switch will immediately take action to shut down the diesel engine. Electric, hazardous area electric, and hydro-mechanical switches available.
Spark Arrestors
Stainless steel spark arrestors are designed to prevent the risk of fire due to spark emissions from diesel engine exhaust systems. They are commonly used in marine, oil & gas, mining, forestry and other hazardous area applications.
Accessories
Valve installation kits contain all components needed to install the valve into the engine air intake line of most diesel engine applications.
Master Safety Shutdown Device
The master safety shutdown device monitors pressure or temperature on rotating machinery in hazardous and industrial applications. Should a loss or drop in pressure occur below the setpoint, the device will trip immediately.
Flameproof Alternator
Standard automotive type alternators are a continuous potential source of ignition when operated in hazardous atmospheres where combustible concentrations of gas, vapors, or dust may exist.
Hydromechanical Engine Fuel Shutoff Valves
Diesel engine fuel shutoff valves are designed for applications where fuel shut down is required as a part of automatic engine shutdown systems. The hydromechanical engine fuel shutoff valves are designed for use as failsafe valves in oil pressure based hydromechanical systems. The air intake depression engine fuel shutoff valve is designed to operate in combination with diesel engine air intake shutoff valves.










