Check Valve Repair & Overhaul
FAA & EASA certified check valve repair and overhaul.
About the Check Valve
A check valve is a passive flow-direction control device in the pneumatic and air management system that permits airflow in one direction while preventing reverse flow, protecting upstream components from backflow, cross-bleed, and pressure surges. Flow pressure lifts a spring-loaded poppet, flapper, or split disc off its seat to pass air, and reverse pressure or spring force reseats the element to block return flow. Because it cycles continuously in hot, pulsating bleed-air service, common degradation includes seat and poppet wear or erosion causing reverse leakage, spring fatigue or relaxation that alters cracking pressure, hinge and pivot wear, corrosion and contamination causing sticking, and fretting at sealing surfaces. These conditions drive leak and cracking-pressure testing, seat and spring replacement, and overhaul to restore one-way sealing.
Our Check Valve Repair Capability
QTC repairs and overhauls check valve components to the original manufacturer's specifications under our FAA and EASA Part 145 approvals. Our engineers — including former OEM pneumatic & air management specialists — perform teardown, inspection, cleaning, component replacement, functional and leak testing, and certification, and develop repairs for rejected and beyond-economic-repair (BER) hardware.
All Check Valve Parts We Service
Click a part number for repair details and to request a quote.
| Part number | Make | Model |
|---|---|---|
| GB2001AA1 | Dornier | 328 |
Frequently Asked Questions
Does QTC repair check valve components?
Yes. QTC repairs and overhauls check valve components under our FAA & EASA Part 145 approvals. Our catalog lists 1 check valve part number. Request a quote to confirm capability and turnaround.
What aircraft use the check valve?
In our catalog, check valve part numbers appear on Dornier. See the full parts list below.
What is involved in check valve repair and overhaul?
Our process typically includes incoming inspection, disassembly, cleaning, non-destructive evaluation, repair or replacement of worn elements, functional/leak testing, and certification with the appropriate airworthiness release.
Request a Quote for Check Valve Repair
Send us your part numbers and condition. Our engineers respond with repair scope, turnaround, and pricing.