GA-144

Operating principle of GA-144

Two electromagnetic pilot commands move the hydraulic distributor from neutral to either working position. The main element connects pressure and return to the required ports, while the neutral connection depends on the approved GA-144 diagram. Reliable operation depends on clean working fluid, the moving element, seat, springs and seals. Contamination, reversed connections or an unsuitable pressure can prevent the intended response.

Role in the aircraft system

Aircraft hydraulic systems requiring reversible remote control of an actuator. A dedicated technical description identifies GA-144 as a three-position solenoid-operated valve; the exact aircraft and mechanism require its parts catalogue. The valve works with pipelines, a pressure source, downstream equipment and the control elements of its circuit. These products are functionally related but must not be described as interchangeable merely because they operate in the same system.

Installation and maintenance checks

Before installation, verify the nameplate, ports, flow direction, internal cleanliness and seal condition. Working pressure, temperature, fluid and the prescribed functional test must come from the passport and maintenance documentation. Adjustment without approved instructions is not permitted. Incoming-inspection results should remain with the product records.

Identifying GA-144 for ordering

Confirm the exact GA-144 nameplate, both solenoid circuits, port assignment and neutral position. Similar GA-142 and GA-163 three-position valves are separate products. Other related products are listed in the valves category. An enquiry should state the complete designation, execution, condition, delivery set and required supporting documents.