FG11BN-1

FG11BN-1 hydraulic filter for aircraft hydraulic systems

The FG11BN-1 is a hydraulic filter used in aircraft and specialized equipment hydraulic systems. It is installed in the line where AMG-10 hydraulic fluid has to be cleaned before it reaches pumps, valves, actuators, and other hydraulic units. The filter does not regulate pressure and does not control the circuit. It removes mechanical particles from the flow and keeps contamination from moving further through the system. For maintenance, the filter is usually checked together with the condition of the element, housing, thread, and sealing surfaces.

Filtration of AMG-10 fluid through FG11BN-1

The FG11BN-1 uses a regenerable filter element with designation 340.044A. During operation, hydraulic fluid passes through the element, and solid particles are retained within the specified filtration range. In aircraft hydraulic systems, this is a practical point, not just a catalogue feature. Contamination can affect valve seats, damage seals, block small passages, or change the response of an actuator. A clean filter has limited resistance, but the resistance rises as the element collects dirt. That is why service checks should include both the filter body and the element itself.

Hydraulic circuit work with filter FG11BN-1

Inside the hydraulic circuit, the FG11BN-1 works together with pipelines, pumps, pressure lines, shut-off valves, actuators, fittings, and service connections. The filter helps reduce the amount of contamination carried by the fluid, but it does not solve every hydraulic problem on its own. If the system shows pressure loss, slow actuator response, or unstable operation, the filter should be checked together with the fluid condition, pump output, valve operation, and line cleanliness. A clogged element may look like a problem in another unit.

Aircraft and equipment application of FG11BN-1

The FG11BN-1 is applied in aircraft and specialized equipment hydraulic systems working under nominal high-pressure conditions. Open technical listings describe it as a hydraulic filter for AMG-10 fluid with a regenerable element and a transportation plug. Exact applicability still has to be confirmed by the aircraft or equipment documentation. A similar-looking filter may differ by thread, filter element, temperature range, flow capacity, or delivery set. For supply work, the installed marking and documentation reference are more reliable than visual comparison.

Identification and ordering checks for FG11BN-1

Before ordering, the marking on the installed filter should be checked against the parts catalog, passport, or system documentation. The product may appear as FG11BN-1, FG-11BN-1, or in Russian documents as ФГ11БН-1. If the request is related to maintenance, it is useful to confirm whether the complete filter assembly is required or only the regenerable filter element 340.044A. The delivery set should also be checked, since this version is supplied with a transportation plug. The product is also known under alternative designation ФГ11БН-1.

Product Type: Hydraulic filter
Function: Filtration of hydraulic fluid from mechanical contaminants
Application / Where Used: Aircraft and specialized equipment hydraulic systems
System / Installation Area: Hydraulic system
Working Medium: AMG-10
Filter Element Designation: 340.044A
Filtration Fineness (Nominal / Absolute): 16 / 25 µm
Nominal Operating Pressure: 21 MPa
Nominal Flow Rate: 40 L/min
Hydraulic Resistance of Clean Filter: Not more than 0.18 MPa
Operating Temperature Range: −60 to +100 °C
Dimensions: L 80 mm, H 184 mm, D 65 mm
Connection Thread: M16×1
Weight: Not more than 1.6 kg
Scope of Supply: Filter assembly with regenerable filter element and transportation plug
Technical Documentation: Hydraulic Filter FG11BN-1 Technical Documentation

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.