Valves

Valves are regulating, switching and protective components used in aircraft fuel, hydraulic, pneumatic and auxiliary onboard systems where controlled flow management, pressure regulation and reliable shutoff functions are required. These units support stable operation of aircraft systems during flight, ground operation, engine start, maintenance procedures and emergency conditions.

This category includes shutoff valves, pressure-regulating valves, relief valves, check valves, selector valves, bypass valves, distribution valves, safety valves and other aircraft flow-control components used on helicopters and fixed-wing aircraft. Depending on the system application, valves may control fuel supply, hydraulic pressure, pneumatic flow, oil circulation, air distribution or emergency isolation of onboard circuits.

Aircraft valves are widely used on Mi-8, Mi-17, Mi-171, Mi-24, Mi-26, Ka-32 helicopters, as well as An-series aircraft, IL-series aircraft, L-410 and other Soviet or Russian-designed aviation platforms. These components may be installed in fuel systems, hydraulic systems, pneumatic circuits, braking assemblies, landing gear systems, engine-support equipment, rotor-related systems and auxiliary onboard mechanisms.

In aviation maintenance practice, valves are normally selected by aircraft part number, pressure range, operating medium, connection type, mounting configuration, flow direction and technical documentation. Even visually similar valves may differ by internal calibration, pressure characteristics, sealing materials, actuation method or approved aircraft application, so correct identification is important during replacement and overhaul work.

During operation, aircraft valves work under vibration, temperature changes, pressure cycling, contamination exposure and continuous mechanical loads. Tight shutoff capability, stable regulating performance, resistance to internal wear and compatibility with fuel, hydraulic fluid, oil or compressed air are critical factors for long-term service reliability.

This category is commonly used during scheduled maintenance, hydraulic-system repair, fuel-system servicing, pneumatic-system overhaul, troubleshooting, modernization programs and restoration of airworthiness. Depending on the specific item and customer requirement, valves may be supplied in factory new, serviceable, storage-preserved or overhauled condition.

Aviamisto supplies aircraft valves, regulating units and related aviation system components for MRO organizations, repair facilities, fleet operators and aviation parts suppliers. Some standard positions may be available from UAE or EU stock locations, while less common valve assemblies are sourced upon request according to aircraft type, part number, operating parameters and maintenance documentation. Technical passports, certificates of conformity, release documents and available traceability records may be provided for selected positions upon request.