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RS1A Air Shut Off Valve


The Roda Deaco RS1A Swing Gate Valve is a positive spring operated air intake cut-off device that provides emergency overspeed protection for a diesel engine. The swing gate compact size requires minimal clearance in the engine compartment. The valve is available in several diameters and has a wide array of intake line connections available to meet engine requirements.

To help simplify installation, Roda Deaco offers a broad array of accessory products and kits to be your single source for complete air intake shutdown systems for your engine. The equipment includes speed switches, speed sensors, toggle switches, valve installation kits, and system actuation kits designed specifically for your engine.


  • Easy to install and maintain
  • Lightweight and compact design
  • Corrosion resistant aluminum, stanless steel construction
  • Electric or manual actuation
  • Vertical or horizontal mounting orientation
Configure this part:
More Information
End Connection Hose Barb
Position Indication Available No
Style Swing Gate
IP Protection No
Hazardous Location Certification No
Power To Close or Energize To Run (Fail Safe) Power-to-Close
Reset Auto Reset