ROLLOVER VALVE ASSY (P/N d251-1) - New Surplus
P/N: d251-1
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 |
|---|---|
| New Surplus | 2 Available |
Product Description
The d251-1 is a rollover valve assembly for aircraft fuel tank vent systems. This float-check valve closes when the aircraft inverts, preventing fuel from escaping through the vent line during aerobatic maneuvers or emergency conditions. During normal flight, it allows fuel tank breathing to maintain proper pressure as fuel is consumed.
The assembly integrates into the fuel tank vent line and requires installation per aircraft maintenance manual specifications and FAA-approved data. Verify applicability in the Illustrated Parts Catalog before installation.
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 ROLLOVER VALVE ASSY (P/N d251-1)?
The d251-1 is a rollover valve assembly for aircraft fuel tank vent systems. This float-check valve closes when the aircraft inverts, preventing fuel from escaping through the vent line during aerobatic maneuvers or emergency conditions.
What hydraulic fluid type is the d251-1 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 ROLLOVER VALVE ASSY against your aircraft maintenance manual for fluid compatibility.
Does the d251-1 come pressure-tested and certified?
Overhauled and repaired hydraulic components are pressure-tested per manufacturer specifications and include 8130-3 documentation. The ROLLOVER VALVE ASSY is available in: New Surplus. 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.