CHECK VALVE, RAM AIR (P/N 390-554935-0002) - As Removed
P/N: 390-554935-0002
Category: Valves & Actuators
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| As Removed | 1 Available |
Product Description
The 390-554935-0002 is a ram air check valve for aircraft environmental control system ducting. This valve permits outside air inflow through the ram air inlet while preventing reverse flow during pressurization or blower operation. Installed downstream of the ram air inlet, it maintains one-way airflow integrity in pneumatic ducting systems.
The valve operates passively—opening under forward pressure and closing against backflow—without requiring external power or control inputs. Installation follows aircraft maintenance manual procedures with applicability confirmed in the Illustrated Parts Catalog.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the CHECK VALVE, RAM AIR (P/N 390-554935-0002)?
The 390-554935-0002 is a ram air check valve for aircraft environmental control system ducting. This valve permits outside air inflow through the ram air inlet while preventing reverse flow during pressurization or blower operation.
What hydraulic fluid type is the 390-554935-0002 compatible with?
Hydraulic component compatibility depends on the aircraft system design. Common aviation hydraulic fluids include MIL-PRF-5606 (mineral-based), MIL-PRF-83282 (synthetic), and Skydrol (phosphate ester). Verify the CHECK VALVE, RAM AIR against your aircraft maintenance manual for fluid compatibility.
Does the 390-554935-0002 come pressure-tested and certified?
Overhauled and repaired hydraulic components are pressure-tested per manufacturer specifications and include 8130-3 documentation. The CHECK VALVE, RAM AIR is available in: As Removed. Contact us for test documentation on your selected condition.
What is the turnaround time for hydraulic component orders?
In-stock hydraulic components ship same business day before 3 PM EST. We provide 24/7 AOG support at (904) 998-9101 for urgent hydraulic system needs. RFQ submissions are typically quoted within 24 hours.
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