Pressure Regulating and Shutoff Valve Repair & Overhaul
FAA & EASA certified pressure regulating and shutoff valve repair and overhaul.
About the Pressure Regulating and Shutoff Valve
A pressure regulating and shutoff valve manages engine bleed air by both throttling downstream pressure to a regulated setpoint and providing positive shutoff on command, controlling supply to air-conditioning packs, anti-ice, and pneumatic users. Within air management, it combines a butterfly or poppet flow element, a pneumatic actuator referenced to a sensing line, and a solenoid or torque motor for shutoff, balancing reference pressure against spring force to hold the regulated value. Exposed to high temperature, vibration, and contaminated bleed air, it degrades through butterfly and bearing wear, actuator diaphragm fatigue, solenoid coil and seal deterioration, spring relaxation, and carbon or soot fouling that causes regulation drift, sluggish response, leakage, or failure to close. Overhaul restores actuation, recalibrates the regulation band, and verifies leakage and shutoff.
Our Pressure Regulating and Shutoff Valve Repair Capability
QTC repairs and overhauls pressure regulating and 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 Pressure Regulating and Shutoff Valve Parts We Service
Click a part number for repair details and to request a quote.
| Part number | Make | Model |
|---|---|---|
| 1946-00-12 | — | Cessna 500/550/560 |
| 1946-00-16 | — | Cessna 500/550/560 |
| 24E88-7 | Beech | 1900 |
| 778695-1 | Bombardier | Dash 8 |
| 778695-3 | Bombardier | Dash 8 |
| 785802-1 | Saab | 340 |
| 785802-2 | Saab | 340 |
| 785802-3 | Saab | 340 |
Frequently Asked Questions
Does QTC repair pressure regulating and shutoff valve components?
Yes. QTC repairs and overhauls pressure regulating and shutoff valve components under our FAA & EASA Part 145 approvals. Our catalog lists 8 pressure regulating and shutoff valve part numbers. Request a quote to confirm capability and turnaround.
What aircraft use the pressure regulating and shutoff valve?
In our catalog, pressure regulating and shutoff valve part numbers appear on Saab, Bombardier, Beech. See the full parts list below.
What is involved in pressure regulating and 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 Pressure Regulating and Shutoff Valve Repair
Send us your part numbers and condition. Our engineers respond with repair scope, turnaround, and pricing.