2 ½” Shutoff Valve Repair & Overhaul
FAA & EASA certified 2 ½” shutoff valve repair and overhaul.
About the 2 ½” Shutoff Valve
A 2½-inch shutoff valve is a pneumatic line valve, typically a butterfly type, used in the air management system to start, stop, or isolate bleed or conditioned airflow in ducting of that nominal diameter. A disc rotated by a pneumatic or electric actuator opens or closes the flow path on command, controlling air delivery to packs, anti-ice, or distribution circuits and providing isolation for safety and maintenance. Operating in hot, high-pressure, vibratory service, it commonly suffers butterfly disc and shaft bearing wear, seal and seat erosion or leakage, actuator diaphragm or solenoid degradation, corrosion and contamination causing sticking, and bushing wear producing position error. These conditions drive functional and leak testing, seal and bearing replacement, actuator overhaul, and full bench rebuild.
Our 2 ½” Shutoff Valve Repair Capability
QTC repairs and overhauls 2 ½” shutoff 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 2 ½” Shutoff Valve Parts We Service
Click a part number for repair details and to request a quote.
| Part number | Make | Model |
|---|---|---|
| 109788-1 | Gulfstream | GII |
| 109788-1 | Gulfstream | GIII |
| 109788-1 | Gulfstream | GIV |
| 109788-2 | — | Ground Power Unit |
| 109788-3 | Gulfstream | GI |
| 109788-3 | Gulfstream | GII |
| 109788-3 | Gulfstream | GIII |
| 109788-3 | Gulfstream | GIV |
| 109788-3 | Lockheed | Jetstar II |
| 979998-1 | Bombardier | Challenger 601 |
| 979998-2 | Bombardier | Challenger 601 |
| 979998-3 | Bombardier | Challenger 601 |
Frequently Asked Questions
Does QTC repair 2 ½” shutoff valve components?
Yes. QTC repairs and overhauls 2 ½” shutoff valve components under our FAA & EASA Part 145 approvals. Our catalog lists 12 2 ½” shutoff valve part numbers. Request a quote to confirm capability and turnaround.
What aircraft use the 2 ½” shutoff valve?
In our catalog, 2 ½” shutoff valve part numbers appear on Gulfstream, Bombardier, Lockheed. See the full parts list below.
What is involved in 2 ½” shutoff 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 2 ½” Shutoff Valve Repair
Send us your part numbers and condition. Our engineers respond with repair scope, turnaround, and pricing.