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3230 - 97 Street Edmonton, Alberta Canada T6N 1K4
Butterfly Air Shutoff Valves
RB Series Compact Butterfly
Swing Gate Air Shutoff Valves
RS Series Swing Gate
Heavy Duty Swing Gate Valves
7000 Series Swing Gate
Flow Actuated Valves
Chalwyn D Valve Series
Revguard 2 Speed Switch
Wiring Harness Kits
Heavy Duty Trucks
Upstream E&P Equipment
Terms & Conditions
Looking for answers? These are the questions we most often hear from our customers. If you don't see what you're looking for, give us a call. We'd love to help you find the perfect solution.
What is CSA B622-14 and how does it affect me?
CSA B622-14 is a regulation requiring that an air intake shutoff device be installed on heavy duty tank trucks carrying dangerous goods.
Learn more here.
What options for specific applications do you have?
Roda Deaco manufactures several distinct lines of valves that fit virtually every application. If you need help specifying which valve is right for your engine, please call us today.
Do you manufacture customized kits for specific applications?
Yes, Roda Deaco has kits for many non-standard applications. These kits save time and money on the installation process.
Do you install valves?
Yes, we install valves in our Edmonton facility. If you would like to book an installation, please call us today.
Why would I need an air shutoff valve?
Airborne hydrocarbons (combustible vapors) present a threat to the controlled operation of a diesel engine. These gases can be drawn into the air intake system, causing the engine to accelerate (over speed) out of control with the possibility of causing engine damage, explosion or fire. A positive air shut down valve will block the engine's air supply, shutting down the engine.
Could I use a fuel shutoff system instead of an air shutoff valve?
No. The airborne hydrocarbons become your engine's fuel source. Even though the conventional fuel source (diesel) has been cut off, the engine will continue to run on the gases carried in through the air intake system. In order to shut down the engine and prevent overspeed, the air intake system must be closed off.
How does the Roda Deaco air shutoff system work?
The Roda Deaco Valve is mounted as close as possible to the engine's air intake manifold. When the valve is actuated, airflow to the engine is ‘cut off’ prohibiting any further engine operation.
What kind of controls should I use to actuate the valve?
Many companies today require that your vehicle/machine/engine be equipped with a fully automatic system. Some companies may only require very basic manual controls. It is best to confirm with your employer or customer the type of controls you require.