Aftermarket Facet ST629FD-5 High Efficiency Fuel Separator Element

Product Introduction

LEFILTER aftermarket Facet ST629FD-5 separator filter is a high-efficiency FD-grade long-stroke hydrophobic separation cartridge designed for standard Facet fuel-water separator systems. Compliant with API-1581 5th edition and EI aviation fuel filtration standards, this element adopts Velocigard balanced flow structure and modified hydrophobic glass fiber media. It specializes in removing residual free water, micro water droplets and fine solid impurities after primary coalescence, effectively solving fuel turbidity, trace water exceeding standard and pipeline secondary emulsification problems. With stable low pressure drop and strong dirt holding performance, ST629FD-5 is widely used in aviation fuel depots, refinery fuel delivery lines and large bulk fuel terminals, providing fully compatible plug-and-play replacement for original Facet equipment.

Product Features & Advantages

The Facet ST629FD-5 belongs to the premium ST-series FD long-size enhanced separator lineup. Compared with conventional short and medium-sized separators, it adopts extended effective filtration length and gradient fiber distribution, which greatly improves flow balance and contaminant holding capacity. The built-in balanced flow technology avoids local over-flow and early clogging, ensuring uniform fluid permeability across the entire filter layer.

All media undergo permanent hydrophobic treatment, featuring stable water repellency without water absorption or performance attenuation during long-term fuel scouring. The integral epoxy sealing process eliminates bypass leakage, while the thickened perforated metal support tube provides excellent pressure resistance and anti-deformation ability. Suitable for 24-hour continuous fuel purification working conditions, it effectively extends the equipment maintenance cycle and reduces operational costs.

Working Principle

ST629FD-5 adopts classic hydrophobic repulsion separation principle for secondary fuel purification:

1. Fuel mixed with coalesced macroscopic water droplets flows from inside to outside through the separator element.

2. The high-density hydrophobic fiber layer completely blocks all free water droplets and micro moisture, allowing no water penetration.

3. Only dry, qualified jet fuel, diesel and light hydrocarbon fluids pass through smoothly to form clean finished fuel.

4. Blocked water gathers on the outer surface of the element, merges into large water masses, and settles into the bottom sump by gravity to complete thorough fuel-water separation.

Full Facet ST/SS/SM Series Separator Filter Model List

ST Series

ST318FA-5, ST324FA-5, ST412FC-5, ST415FB-5, ST417FB-5, ST422FC-5, ST424FB-5, ST430FB-5, ST432FC-5, ST436FB-5, ST609FB-5, ST609FF-5, ST611FD-5, ST612FB-5, ST614FD-5, ST616FD-5, ST618FB-5, ST622FD-5, ST624FB-5, ST624FE-5, ST624FF-5, ST629FD-5, ST630FB-5, ST630FD-5, ST630FE-5, ST630FF-5, ST633FB-5, ST633FD-5, ST636FB-5, ST636FD-5, ST636FE-5, ST636FF-5, ST638FD-5, ST640FD-5, ST640FE-5, ST640FF-5, ST643FD-5, ST644FB-5, ST644FD-5, ST644FE-5, ST644FF-5, ST648FD-5, ST648FE-5, ST648FF-5, ST656FB-5, ST656FF-5

SS Series

SS318FA-5, SS324FA-5, SS412FC-5, SS415FB-5, SS417FB-5, SS422FC-5, SS424FB-5, SS430FB-5, SS432FC-5, SS436FB-5, SS609FB-5, SS609FF-5, SS611FD-5, SS612FB-5, SS614FD-5, SS616FD-5, SS618FB-5, SS622FD-5, SS624FB-5, SS624FE-5, SS624FF-5, SS629FD-5, SS630FB-5, SS630FD-5, SS630FE-5, SS630FF-5, SS633FB-5, SS633FD-5, SS636FB-5, SS636FD-5, SS636FE-5, SS636FF-5, SS638FD-5, SS640FD-5, SS640FE-5, SS640FF-5, SS643FD-5, SS644FB-5, SS644FD-5, SS644FE-5, SS644FF-5, SS648FD-5, SS648FE-5, SS648FF-5, SS656FB-5, SS656FF-5

SM Series

SM-318FA-5, SM-324FA-5, SM-412FC-5, SM-415FB-5, SM-417FB-5, SM-422FC-5, SM-424FB-5, SM-430FB-5, SM-432FC-5, SM-436FB-5, SM-09FB-5, SM-09FF-5, SM-11FD-5, SM-12FB-5, SM-14FD-5, SM-16FD-5, SM-18FB-5, SM-22FD-5, SM-24FB-5, SM-24FE-5, SM-24FF-5, SM-29FD-5, SM-30FB-5, SM-30FD-5, SM-30FE-5, SM-33FB-5, SM-33FD-5, SM-36FB-5, SM-36FD-5, SM-36FE-5, SM-36FF-5, SM-38FD-5, SM-40FD-5, SM-40FE-5, SM-40FF-5, SM-43FB-5, SM-43FD-5, SM-44FB-5, SM-44FD-5, SM-44FE-5, SM-44FF-5, SM-48FD-5, SM-48FF-5, SM-56FB-5, SM-56FF-5

Application Scenarios

Ideal for large-flow aviation fuel supply systems, petrochemical finished fuel processing lines, oil depot storage and transfer systems, port fuel bunkering facilities and industrial fuel separator skids. As a key secondary separation component, ST629FD-5 effectively protects downstream precision instruments, fuel pumps and metering equipment from water corrosion and particle wear, ensuring long-term stable and safe fuel system operation.

FAQ

Q: What are the core advantages of ST629FD-5?

A: ST629FD-5 features balanced flow structure, larger filtration area and stronger water blocking stability. It performs better in large-flow and long-cycle continuous operation than conventional short separators.

Q: Is this replacement fully compatible with original Facet housing?

A: 100% dimensional and structurally interchangeable, plug-and-play without any equipment modification.

Q: What is the difference between FD grade and FB/FE grade?

A: FD is long-size durable grade focused on large flow and long service life; FB is heavy-duty dirt holding type; FE is high-precision micro-water interception type.

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