Drop-in Replacement FAUDI MIL.1-842 Coalescing Filter | Full FAUDI Series Supply

FAUDI MIL.1-842 is a compact, high-efficiency coalescing element widely used in small and medium-flow fuel purification systems. It is specially designed to handle fine emulsified water, oil mist and tiny particulate impurities in jet fuel, diesel and light hydrocarbons, preventing fuel quality degradation, pipeline blockage and downstream equipment corrosion. LEFILTER’s optimized MIL.1-842 filter adopts scientific layered fiber layout, maintaining stable coalescing efficiency under temperature cycling and low-pressure fluctuation, ideal for continuous-duty aviation depots and industrial fuel processing stations.

Working Principle of MIL.1-842 Coalescer

The FAUDI MIL.1-842 coalescing filter adopts multi-layer gradient progressive filtration technology to achieve dual purification of particles and water mist. The outer coarse fiber layer performs primary filtration to trap large sediment and scale, protecting the inner precision media layer from premature clogging and ensuring uniform fluid penetration.

As fluid flows through the inner high-hydrophilic glass fiber network, invisible micro water droplets and dispersed oil mist are fully captured. Under continuous fluid scouring and molecular adhesion, tiny droplets collide, aggregate and grow into large-diameter water droplets. Relying on gravity difference, the enlarged droplets separate from the fuel medium and settle into the filter housing sump, while clean fuel flows steadily downstream to complete high-standard purification.

Core Material & Structural Features

1. Aviation-Grade Hydrophilic Fiber Media

Adopting high-purity borosilicate glass fiber with graded density structure, the media features excellent chemical inertness and super hydrophilicity. It is fully compatible with various aviation fuels and light hydrocarbon fluids, achieving stable water-oil separation and particle removal without fiber shedding or performance attenuation.

2. Reinforced Polyamide End Cap & NBR Sealing System

Glass fiber reinforced polyamide end caps enhance structural stability and aging resistance. Equipped with original-standard NBR sealing gaskets, the filter ensures zero-leakage operation under cyclic pressure and temperature changes, perfectly matching FAUDI original installation interfaces.

3. Epoxy-Coated Steel Support & Hot-Melt Integrated Structure

Internal epoxy-coated steel central tube provides strong anti-collapse support, effectively resisting media deformation under differential pressure. Full hot-melt sealing process eliminates adhesive dissolution and secondary pollution risks, supporting 24-hour continuous industrial operation.

Full Range of Compatible FAUDI Filter Models

LEFILTER supplies complete series aftermarket replacement filters for all mainstream FAUDI coalescing elements. All listed models are 100% drop-in interchangeable with original FAUDI filter housings and systems:

A Series: A.1-559、A.1-842、A.3-842、A.4-727、A.4-842、A.6-467、A.6-842

Y Series: Y.1-842/5、Y.4-467/5、Y.4-559/5、Y.4-842/5、Y.6-362/5、Y.6-559/5、Y.6-842/5、Y.7-362/5、Y.7-842/5、Y.7-1422/5

MIL Series: MIL.6-362、MIL.6-559、MIL.6-842、MIL.1-842、MIL.3-467、MIL.3-559、MIL.3-842、MIL.3-965、MIL.4-279、MIL.4-362、MIL.4-559、MIL.4-727、MIL.4-842、MIL.4-965、MIL.4-1093、MIL.4-1422、MIL.7-362、MIL.7-559、MIL.7-727、MIL.7-842、MIL.7-965、MIL.7-1093、MIL.7-1422

K Series: K.1-842、K.3-467、K.3-559、K.3-842、K.3-965、K.4-279、K.4-362、K.4-559、K.4-727、K.4-842、K.4-965、K.4-1093、K.4-1422、K.7-362、K.7-559、K.7-727、K.7-842、K.7-965、K.7-1093、K.7-1422

P Series: P.1-842、P.3-467、P.3-559、P.3-842、P.3-965、P.4-279、P.4-362、P.4-559、P.4-727、P.4-842、P.4-965、P.4-1093、P.4-1422、P.7-362、P.7-559、P.7-727、P.7-842、P.7-965、P.7-1093、P.7-1422

D & DC Series: D.1-362、D.1-842、D.6-467、DC.1-842-xx、DC.4-279-xx、DC.4-362-xx、DC.4-559-xx、DC.4-727-xx、DC.4-842-xx、DC.4-1093-xx、DC.4-1422-xx、DC.7-362-xx、DC.7-559-xx、DC.7-727-xx、DC.7-842-xx、DC.7-1093-xx、DC.7-1422-xx

Application Scenarios

LEFILTER FAUDI MIL.1-842 coalescing filter is widely applied in military fuel stations, aviation fuel logistics terminals, petrochemical processing plants and light hydrocarbon purification systems. It effectively removes free water, oil mist and fine solid particles, protecting downstream compressors, precision meters and pipeline systems from corrosion, abrasion and liquid hammer failure, ensuring long-term stable and safe system operation.

Product Advantages

All MIL.1-842 filter elements are strictly tested by bubble point and pressure resistance inspection before delivery to ensure 100% OEM interchangeability and consistent filtration performance. Compared with ordinary generic filters, our upgraded fiber media provides higher dirt holding capacity and longer service life, reducing daily maintenance frequency and operational costs. We support full-series FAUDI filter one-stop procurement, sufficient spot supply and fast global delivery.

FAQ for FAUDI MIL.1-842 Coalescing Filter

Q1: Is LEFILTER MIL.1-842 fully interchangeable with original FAUDI?

A1: Yes. It completely matches the original size, flow direction and sealing structure, supporting direct drop-in replacement with no equipment modification required.

Q2: What is the main application of FAUDI MIL.1-842?

A2: It is a compact aviation and military-grade coalescer, mainly used for fine water and particle removal in jet fuel, diesel and light hydrocarbon purification systems.

Q3: What are the standard working parameters?

A3: Working temperature: -30℃ ~ +80℃, max differential pressure: 5.2 bar. Timely replacement is recommended when differential pressure reaches 1.0 bar.

Q4: What contaminants can this filter eliminate?

A4: It effectively removes fine solid particles, free water droplets and emulsified oil mist in various aviation and industrial fuel media.

Q5: Can this filter work continuously for a long time?

A5: Yes. Reinforced steel support and integrated hot-melt sealing structure ensure excellent structural stability for 24-hour continuous industrial operation.

Q6: Do you provide other FAUDI series replacement filters?

A6: We provide full A/Y/MIL/K/P/D/DC series FAUDI coalescing filters, supporting one-stop batch procurement for engineering and maintenance projects.

Q7: Do you support sample testing and customized services?

A7: Free sample testing is available. We also support customized logo, packaging and personalized solutions for bulk orders.