ВЕНТИЛЯЦИЯ FAST FI Caterpillar 6278676

The Fuel Tank Fast Fill Vent provides a controlled venting path during fast‑fill fueling to allow air inside the tank to escape as fuel enters. By keeping pressure balanced, the vent supports smooth fuel transfer and prevents back‑pressure that can cause spill‑back or unwanted nozzle shutoff. The vent helps reduce air pockets that slow filling and supports consistent fuel flow into the tank. It remains securely positioned and maintains reliable venting performance across repeated fueling cycles.Attributes:• Allows trapped air to escape during fast‑fill fueling.• Helps maintain stable internal tank pressure.• Rollover poppet actuates closed at 20 degree Celsius ± 2 degree Celsius.• Venting is one‑way from the tank to the atmosphere.• Cracking pressure is 0.8 to 1.2 pound per square inch for the normally closed poppet to open.• Pressure drop is less than 2 pound per square inch with 200 gallon per minute of air flowing out of the tank.Applications: The Fuel Tank Fast Fill Vent is installed on fuel tanks equipped for high‑flow refueling. It helps release displaced air during fast filling, maintains pressure stability, and prevents overflow to support smooth and efficient fueling operations.