Roda Deaco positive air shut off valves, speed switches, and accessories help shut down a diesel engine in the event of an overspeed. We offer the widest range of sizes and actuation methods because a one-size-fits-all approach doesn't work. From compact to heavy duty, manual or automatic, and everything in between, we can guarantee the best product for your unique application.
Our complete product line includes Roda Deaco, Chalwyn, Rigsaver and AMOT brands.
Ideal for applications with tight clearances. Examples may include, but are not limited to light towers, generators, skid steers, trucks and small dozers.
The Swing Gate Positive Air Shut Off Valve uses a "guillotine" method for emergency engine shutdown. It is offered in a variety of sizes and actuation methods.
A plug-n-play positive air shut off system that uses the factory-installed throttle valve to immediately shut down the engine. The preferred solution for light duty automotive trucks and heavy duty trucks.
The Chalwyn brand D-AM automatic positive air shut off valves are self-contained with flow actuated overspeed shutdown. They require no external electrical or mechanical input devices.
The Roda Deaco Revguard Speed Switches detect the hazard of an overspeed condition. When engine RPMs exceed the Revguard’s program setpoint, the output is energized, providing the signal to actuate the air intake shutoff valve(s) to shut off your engine.
We have a wide range of Activation, Installation and Wiring Harness Kits to ease the installation of positive air shut off valves. The kits are designed to meet specific engine models and application requirements.