GA-184U

GA-184U two-position valve for aircraft hydraulics

The GA-184U is an aircraft two-position electromagnetic hydraulic valve used for remote control of hydraulic fluid flow. It is installed in hydraulic circuits where a line has to be opened or closed by an electrical command. The valve does not generate pressure and does not replace a pump. Its role is to switch the hydraulic passage and control the supply of working fluid to a connected actuator or hydraulic unit. In open catalog references, GA-184U is listed as a two-position valve used on Mi-26 helicopters.

Hydraulic flow control through GA-184U

In operation, the GA-184U responds to voltage applied to its electromagnet. The internal valve mechanism changes position and opens or closes the hydraulic passage according to the system layout. When power is removed, the valve returns to its normal state as defined by the installation. This type of unit is used where hydraulic flow needs to be controlled from the aircraft electrical system, for example in actuator circuits, landing gear related lines, braking circuits, or other hydraulic functions where the aircraft documentation specifies this valve.

GA-184U in actuator and service hydraulic circuits

Inside the hydraulic system, GA-184U works together with pressure lines, return lines, fittings, actuators, control switches, wiring, and the hydraulic fluid supply. If the connected mechanism does not operate, the valve is only one possible cause. Maintenance checks normally include electrical power at the connector, electromagnet operation, valve movement, pressure in the line, leakage, fluid cleanliness, and the condition of the actuator. A problem in any of these areas can look like a valve fault.

Aircraft application of hydraulic valve GA-184U

The GA-184U is used in aircraft hydraulic systems, with open catalog references confirming application on Mi-26 helicopters. Other supply lists may show the valve in aircraft spare parts stock or near related electromagnetic hydraulic valves from the GA series, but exact applicability should be checked by the aircraft parts catalog. A similar valve from the same family may not match the required installation if the version, port layout, operating logic, or acceptance documentation differs.

Identification and ordering checks for GA-184U

Before ordering, the marking on the installed valve should be compared with the aircraft parts catalog, product passport, or technical conditions. The product may appear as GA-184U in English-language documents and as ГА-184У in Russian documentation. The related version GA-184U/2 / ГА-184У/2 may appear in separate references, but interchangeability must be confirmed by documentation. A clear request should include the aircraft type, system location, full designation, and a photo of the marking if available. The product is also known under alternative designation ГА-184У.

Product Type: Two-position electromagnetic hydraulic valve
Function: Remote control of hydraulic fluid flow
Application / Where Used: Aircraft hydraulic systems
System / Installation Area: Hydraulic actuator and service circuits
Compatible Aircraft / Equipment: Mi-26 helicopter, where specified by aircraft documentation
Working Medium: Aviation hydraulic oil, including AMG-10 where specified
Operating Voltage: 27 V DC
Control Type: Electromagnetic remote control
Operating Mode: Two-position open/closed operation
Housing Material: Aluminum alloy
Design Features: Body with hydraulic ports, electromagnet, armature, valve unit, piston with spring, spool
Related Variant: GA-184U/2
Manufacturing Standard: TU1-041-0053-1999
Technical Documentation: Product passport / aircraft maintenance documentation

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