101-381015-X — Solenoid Valve Repair & Overhaul

Component Overview

A solenoid valve uses an electromagnetic coil to drive a poppet or spool, providing fast on/off or directional control of air or fluid flow in pneumatic and air-management circuits, often as a pilot stage that ports control pressure to a larger actuator. Energizing the coil shifts the armature against a return spring to open or close the flow path. Common degradation modes include coil insulation breakdown and open or shorted windings, armature and seat wear that causes leakage, contamination that jams the plunger, return-spring fatigue, and seal hardening. These produce failure to actuate, slow or chattering response, internal leakage, or a stuck-open or stuck-closed condition. Repair involves coil and seal replacement, seat and armature refurbishment, contamination removal, and electrical, leakage, and response-time testing.

Aircraft Application

Part number 101-381015-X (Solenoid Valve) is installed on the Beech 1900C/D / Super King Air 300. QTC supports operators and MROs servicing this platform with certified repair and overhaul.

Our Repair Capability

QTC repairs and overhauls 101-381015-X to the original manufacturer's specifications under our FAA and EASA Part 145 approvals. Our team — including former OEM pneumatic & air management engineers — performs teardown, inspection, cleaning, component replacement, functional testing, and certification, returning a serviceable unit with the appropriate airworthiness release. We also develop repairs for rejected and beyond-economic-repair (BER) hardware.

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Frequently Asked Questions