Premium FAUDI K.1-842 Coalescing Filter Replacement | Full FAUDI Series In Stock

LEFILTER supplies high-precision, drop-in aftermarket replacement filter for the original FAUDI K.1-842 coalescing cartridge. Manufactured in strict accordance with EI 1581 aviation filtration standards, this K-series coalescing element is designed for efficient fine particle interception and micro-water coalescing separation in aviation fuel and light hydrocarbon fluids. It fully replicates the original dimensional tolerance, in-to-out flow path and NBR sealing structure of genuine FAUDI parts, enabling direct installation without housing modification or system adjustment. With upgraded hydrophilic gradient glass fiber media and reinforced anti-collapse structure, our FAUDI K.1-842 alternative delivers stable long-cycle filtration performance, helping industrial and aviation users reduce OEM procurement costs and avoid long lead-time downtime.

The FAUDI K-series represents professional-grade coalescing elements specially optimized for mobile refueling equipment, fuel dispensers and small-to-medium flow fuel separation systems. The K.1-842 model features excellent dirt holding capacity and superior demulsification ability, targeting emulsified water, oil mist and micro solid contaminants that commonly cause fuel turbidity, pipeline blockage and precision instrument failure. LEFILTER’s optimized K.1-842 filter adopts graded density fiber layout and anti-aging structural design, maintaining consistent separation efficiency under pressure pulsation and continuous cyclic operation, perfectly adapting to high-standard aviation and industrial fuel purification scenarios.

Coalescing Filtration Working Principle

FAUDI K.1-842 coalescing filter adopts multi-stage gradient progressive filtration and droplet coalescence technology. The outer coarse fiber layer performs primary pre-filtration to intercept large sediment, rust and scale, effectively preventing premature media clogging and ensuring uniform fluid distribution across the entire filter surface.

As hydrocarbon fluid flows inward through the high-hydrophilic inner glass fiber network, invisible micron-scale emulsified water droplets and dispersed oil mist are fully captured and adsorbed. Under continuous fluid shear force and molecular adhesion, scattered tiny droplets collide, aggregate and grow into large-diameter water droplets. Relying on gravity difference, the enlarged water droplets separate from the fuel medium and settle into the filter sump, while clean and qualified fuel flows downstream to complete high-precision purification.

Product Structure & Performance Advantages

1. Aviation-Grade Hydrophilic Glass Fiber Media

Adopting high-purity borosilicate glass fiber with gradient density structure, the media possesses super hydrophilicity and excellent chemical inertness. It is fully compatible with jet fuel, diesel, gasoline and various light hydrocarbon solvents, achieving stable water-oil separation and fine particle filtration without fiber shedding or performance attenuation.

2. Reinforced Polyamide End Cap & Standard NBR Sealing

Glass fiber reinforced polyamide end caps enhance overall structural rigidity, low-temperature resistance and aging stability. Equipped with original-standard NBR sealing gaskets, the filter maintains zero-leakage sealing performance under cyclic pressure and temperature changes, ensuring perfect matching with original FAUDI filter vessels.

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

Built-in epoxy-coated steel central tube provides strong radial anti-collapse support, effectively resisting media deformation under high differential pressure. Full automatic hot-melt integral bonding eliminates adhesive dissolution and secondary pollution risks, supporting 24-hour uninterrupted continuous industrial operation.

Full FAUDI Interchangeable Filter Series

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 K.1-842 coalescing filter is widely used in mobile refueling equipment, aviation fuel dispensers, small and medium-sized fuel depots, military fuel supply systems and petrochemical light hydrocarbon purification units. It effectively removes free water, emulsified oil mist and fine solid particles, improving overall fuel cleanliness. It reliably protects downstream compressors, flow meters, control valves and pipeline systems from corrosion, liquid hammer and abrasive wear, ensuring safe and stable operation of fuel supply systems.

Product Advantages

Every FAUDI K.1-842 filter element undergoes strict bubble point test and pressure resistance inspection before delivery to ensure 100% interchangeability and OEM-level filtration performance. Compared with ordinary generic filters, our upgraded gradient fiber media delivers higher dirt holding capacity and longer service life, reducing replacement frequency and system maintenance costs. We support full-series FAUDI filter one-stop procurement, sufficient spot inventory and fast global delivery for engineering and after-sales maintenance projects.

FAQ for FAUDI K.1-842 Coalescing Filter

Q1: Is LEFILTER K.1-842 fully compatible with original FAUDI equipment?

A1: Yes. It completely matches the original installation size, in-to-out flow direction and NBR sealing interface, supporting direct drop-in replacement without any equipment modification.

Q2: What is the core function of FAUDI K.1-842?

A2: As a K-series professional coalescing element, it efficiently removes fine solid particles, emulsified oil mist and micro free water in aviation fuel and light hydrocarbon media.

Q3: What are the standard working parameters?

A3: Stable working temperature: -30℃ ~ +80℃, max differential pressure: 5.2 bar. Replace timely when system differential pressure reaches 1.0 bar.

Q4: What working conditions is K.1-842 suitable for?

A4: It is specially suitable for mobile refueling equipment, aviation fuel dispensers and medium and small flow fuel purification systems.

Q5: Can it support long-term continuous operation?

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

Q6: Do you supply other FAUDI series replacement filters?

A6: We provide complete A/Y/MIL/K/P/D/DC series FAUDI coalescing filters, supporting one-stop batch procurement for all specifications.

Q7: Do you offer sample testing and customized services?

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

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