The Largest Global Manufacturer of Diesel Engine Safety Systems

Standard valves in stock

Same Day Delivery

We have standard positive air shutoff valves in stock ready to ship when you need them. Call (1) 780-465-4429 or email us to find out more.

Piece Of Mind

Engineered and Field-Proven

We offer the most comprehensive and diverse line of positive air shutoff valves. In addition, our installation/activation kits are specifically engineered for your application.

Compact Butterfly Valves

Compact Butterfly Valves

Our compact butterfly valve has undergone rigorous testing to ensure maximum reliability and durability according to the industry leading OEM standards. 

Innovation and Quality 

As the primary supplier to global engine OEM's, Roda Deaco is the industry leading innovator of positive air shutoff valves and systems (also known as ASOV, air shut off valves, or ESD, emergency shut down valves), offering a diverse selection of valve types, sizes and actuation methods.
With over 25 years of experience, focused exclusively on positive air shutoff valves, our engineers are the most knowledgeable in the industry.  Utilizing that expertise, we have developed a rigorous testing and performance analysis process that thoroughly assesses the quality, reliability and durability of every valve from concept to full production. Specific testing may include:
  • Functional Testing Over Temperature
  • Vibration testing – Random
  • Vibration testing – Sinusoidal
  • Vibration testing – Shock
  • Thermal Shock
  • Thermal Endurance
  • Salt Spray Testing
  • Immersion Testing
  • Cycle Life Testing
  • On Engine Testing

 Electronic equipment such as our RevGuard (fully automatic speed switch) is also tested to automotive standards for frequency interference. 

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