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4261D Air Intake Shut Off Valve

SKU 4261D

AMOT 4261D Butterfly Valves help prevent diesel engine runaway, a dangerous conditions that can injure personnel and cause severe damage to equipment every year. A diesel engine will runaway and self destruct on hydrocarbon vapors, even if the engine’s primary source of fuel is taken away.  An air intake shut-off valve is a must for diesel engines which have even a possibility of encountering hydrocarbon vapors. The 4261D Air Intake Shut-off Valves from AMOT use the best available technology to shut down a runaway diesel by closing off engine intake air.


  • Corrosion resistant, anodized aluminum and stainless steel construction
  • Use as a stand alone or complete runaway shut down system
  • Remote reset capability
  • Manual, pneumatic, electric or hydro mechanical actuation
Configure this part:
More Information
End Connection Hose Barb
Position Indication Available No
Connectors Flying Leads
Style Butterfly
Max Air Intake Temp (F) 257
Min Air Intake Temp (F) -4
Max Pressure (psi) 60
IP Protection No
Hazardous Location Certification No
Power To Close or Energize To Run (Fail Safe) Power-to-Close
Reset Manual Reset, Auto Reset