High Stability FAUDI K.3-842 Coalescing Filter Replacement | Full Series Supply
LEFILTER FAUDI K.3-842 medium-flow coalescing filter meets EI 1581 aviation standards. Fully drop-in compatible, it delivers efficient water-oil separation and particle filtration for medium-load aviation and industrial fuel systems.
Product Introduction
LEFILTER manufactures high-match aftermarket replacement filter for the original FAUDI K.3-842 coalescing element. Compliant with EI 1581 aviation filtration standards, this K-series coalescer is engineered for medium-flow fuel purification and precise water-oil separation in aviation kerosene, diesel, gasoline and light hydrocarbon fluids. Every structural dimension, installation interface and sealing specification strictly matches genuine FAUDI standards, enabling direct drop-in replacement without housing modification or system debugging. Adopting upgraded gradient hydrophilic glass fiber composite media and pressure-resistant structural design, our FAUDI K.3-842 alternative delivers stable filtration efficiency and extended service life, effectively solving the problems of high OEM costs and long delivery cycles for industrial and aviation fuel treatment systems.
FAUDI K.3-842 is a core medium-duty coalescing element in the K-series product line, widely used in fixed fuel depots, petrochemical fuel processing lines and semi-mobile fuel purification equipment. It is specially designed to handle emulsified water, oil mist and fine solid particles that cause fuel turbidity, pipeline corrosion and downstream equipment wear. Different from compact K1 series elements, K.3-842 features optimized media area and dirt holding capacity, adapting to continuous medium-flow working conditions. LEFILTER’s upgraded K.3-842 filter maintains stable coalescing performance under temperature cycling and pressure fluctuation, ensuring long-term reliable operation of high-standard fuel systems.
Coalescing Filtration Working Principle
FAUDI K.3-842 adopts classic two-stage gradient progressive filtration and droplet coalescence technology. The outer coarse composite fiber layer performs primary pre-filtration, intercepting large sediment, rust and scale to avoid local clogging and ensure uniform fluid distribution across the entire filter media.
During standard in-to-out fluid flow, micron-level emulsified water droplets and dispersed oil mist are fully captured by the inner high-hydrophilic glass fiber network. Under continuous fluid shear force and molecular adhesion, scattered micro-droplets collide, aggregate and grow into large-size water droplets. Relying on gravity difference, the enlarged water droplets separate completely from the hydrocarbon medium and settle into the filter sump, while clean and qualified fuel flows downstream to finish high-precision purification.
Structural & Material Core Advantages
1. Aviation-Grade Gradient Composite Fiber Media
Adopting high-purity borosilicate glass fiber and composite filter material with graded density layout, the media features super hydrophilicity and excellent chemical inertness. It is perfectly compatible with various low-viscosity hydrocarbon media, achieving efficient demulsification, water removal and particle interception without fiber shedding or performance attenuation.
2. Reinforced Polyamide End Cap & Zero-Leak NBR Sealing
Glass fiber reinforced polyamide end caps enhance structural rigidity, low-temperature resistance and anti-aging performance. Equipped with original-standard NBR sealing gaskets, the filter maintains stable zero-leakage performance under cyclic pressure and temperature changes, fully matching FAUDI original installation structure.
3. Epoxy-Coated Steel Support & Integrated Hot-Melt Structure
Built-in epoxy-coated steel central tube provides strong anti-collapse radial support, effectively preventing media deformation and failure 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.3-842 coalescing filter is widely applied in medium-flow aviation fuel stations, fixed fuel depot purification systems, petrochemical fuel processing workshops and industrial light hydrocarbon separation units. It effectively removes fine solid impurities, emulsified oil mist and free water in fuel media, significantly improving fuel cleanliness and stability. It provides reliable protection for downstream precision meters, control valves and compressor equipment, reducing pipeline corrosion, liquid hammer failure and equipment maintenance frequency.
Product Advantages
All FAUDI K.3-842 filter elements undergo strict bubble point testing and pressure resistance inspection before delivery to ensure 100% dimensional and performance interchangeability with original FAUDI products. The optimized gradient composite media features higher dirt holding capacity and better demulsification performance than ordinary generic filters, extending service life and reducing operational costs. We support full-series FAUDI filter one-stop procurement, sufficient spot inventory and fast global after-sales service.
Professional FAQ for FAUDI K.3-842
Q1: Is LEFILTER K.3-842 fully compatible with original FAUDI equipment?
A1: Yes. It completely matches the original in-to-out flow direction, installation size and NBR sealing structure, supporting direct drop-in replacement with no equipment modification required.
Q2: What is the advantage of K.3-842 compared with other K-series filters?
A2: K.3-842 is a medium-flow optimized model with larger filtration area and higher dirt holding capacity, suitable for continuous medium-load fuel purification working conditions.
Q3: What are the standard working parameters?
A3: Working temperature ranges from -30℃ to +80℃, maximum differential pressure 5.2 bar. Timely replacement is recommended when differential pressure reaches 1.0 bar.
Q4: What contaminants can K.3-842 filter remove?
A4: It efficiently removes fine solid particles, free water droplets and emulsified oil mist in aviation kerosene, diesel, gasoline and light hydrocarbon fluids.
Q5: Can this filter work continuously for a long time?
A5: Yes. Reinforced epoxy steel support and integrated hot-melt sealing structure ensure excellent structural stability for 24-hour continuous industrial operation.
Q6: Do you supply other FAUDI full-series filters?
A6: We provide complete A/Y/MIL/K/P/D/DC series FAUDI coalescing filters, supporting one-stop batch procurement for all project specifications.
Q7: Do you support sample testing and customization?
A7: Free sample verification is available. Customized logo, packaging and bulk order solutions are supported for global industrial clients.
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