Velcon I-628C5TB Coalescing Filter
The Velcon I-628C5TB is a premium 28-inch threaded-base aviation coalescing filter element, designed for high-flow Velcon fuel filter separator systems. Compliant with EI 1581 6th Edition aviation filtration standards, this extended-length TB-type coalescer features larger filtration area and ultra-high dirt holding capacity compared with 14-inch and 22-inch standard models. It delivers efficient removal of fine solid particles and emulsified water in jet fuel and diesel, ensuring stable fuel cleanliness and longer maintenance cycles for large-flow aviation depots, industrial refineries and bulk fuel terminal systems.
Product Introduction
Overview
Velcon I-628C5TB belongs to the high-capacity extended series of Velcon I-series coalescers. Equipped with a professional threaded base (TB) structure, it supports fast screw locking installation and ultra-stable sealing under long-term high-flow and pressure fluctuation conditions.
With a 28-inch full-length gradient hydrophilic fiberglass media layout, this element significantly increases effective filtration area and contaminant storage volume. It effectively solves frequent clogging and incomplete water separation issues of ordinary short-size coalescers, making it the ideal core filtration consumable for large-volume continuous fuel purification scenarios.
Working Principle
Adopts standard inside-to-out progressive coalescing filtration principle:
Outer open gradient fiber layer disperses high-speed fuel flow and intercepts large rust, sediment and mechanical impurities to avoid early media blinding.
Inner high-density hydrophilic fiberglass layer captures micron-level invisible emulsified water droplets suspended in fuel.
Tiny water droplets collide, adsorb and aggregate under continuous fluid shear force to form large water beads.
Water separates from fuel by gravity settlement, achieving dry, qualified aviation-grade fuel output.
Product Features
28-inch super extended length, ultra-large flow throughput and dirt holding capacity
Threaded base (TB) design, quick installation, anti-loosening and stable sealing
Aviation-grade hydrophilic borosilicate fiberglass, lasting demulsification performance
Multi-layer gradient structure, low pressure drop and high filtration accuracy
Full integral epoxy bonding, zero bypass leakage
Reinforced internal steel support tube, anti-deformation under high differential pressure
Fully compliant with EI 1581 6th Edition international aviation standards
Full Velcon I-Series Complete Models
Threaded Base (C5TB Series)
I-614C5TB, I-622C5TB, I-628C5TB, I-633C5TB, I-638C5TB, I-644C5TB, I-656C5TB
Plain End (C5 Series)
I-614C5, I-622C5, I-628C5, I-633C5, I-638C5, I-644C5, I-656C5
Applications
Large airport fuel depots, high-flow fuel terminal stations, petrochemical refinery fuel processing lines, marine large-scale fuel bunkering systems, industrial high-flow filter separator equipment.
Product Advantages
100% drop-in interchangeable with original Velcon filter housings
28-inch oversized media greatly extends service cycle and reduces downtime
Threaded base structure ensures stable sealing under harsh fluctuating pressure
Superior emulsified water removal performance for high-polluted fuel
Full series specifications in stock for one-stop aviation & industrial filtration matching
FAQ
Q: What is the advantage of I-628C5TB over 14/22-inch models?
A: The 28-inch extended design provides larger filtration area, higher flow tolerance and much stronger dirt holding capacity, perfectly suitable for large-flow continuous fuel operation.
Q: What is the difference between I-628C5 and I-628C5TB?
A: I-628C5 is plain end for clamp installation; I-628C5TB is threaded base for screw-lock vessels. Both have identical filtration performance.
Q: Does this element meet aviation industry standards?
A: Yes, strictly manufactured and tested according to EI 1581 6th Edition aviation fuel filtration specifications.
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Product Technical Parameters
Model: Velcon I-628C5TB
Type: High-flow Aviation Coalescer (Threaded Base)
Executive Standard: EI 1581 6th Edition
Flow Direction: Inside to Outside
Length: 28 inch
Max Differential Pressure: 5.2 bar
Recommended Replacement DP: 1.0 bar
Filter Media: Gradient hydrophilic fiberglass
Working Temperature: -30℃ ~ +80℃
Applicable Media: Jet fuel, diesel, gasoline, light hydrocarbon fluids
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