Product Overview
Velcon SO-623VA5 belongs to the optimized stable-performance lineup of the Velcon SO 6000 high-grade separator series. Compared with standard 4000-series short filters, the 623VA5 model features optimized medium-long filter length and upgraded uniform-density media, effectively avoiding common industrial problems such as rapid pressure drop rise, early clogging and unstable separation efficiency. The classic straight cylindrical structure realizes even radial fuel flow, reduces local media load, and greatly improves overall operational stability during long-cycle fuel treatment.
Our replacement SO-623VA5 filter adopts high-temperature cured permanent hydrophobic borosilicate glass fiber media with balanced density grading. It maintains consistent water repellent performance and anti-emulsification capability under long-term continuous fuel scouring, with almost no performance attenuation throughout the service cycle. The integrated one-piece polyurethane end cap provides full perimeter sealing, completely eliminating bypass filtration and short-circuit flow. The built-in reinforced internal support skeleton enhances structural stability, resisting media looseness, bulging and deformation under frequent pressure fluctuations. With excellent comprehensive performance, SO-623VA5 becomes the preferred stable-type filter for medium and large-flow industrial fuel purification systems.

Working Principle
SO-623VA5 adopts Velcon’s proven balanced-structure 5-stage precision separation mechanism:
1. Fuel mixed with coalesced water droplets and fine particulate impurities flows radially outward from the inner filter core.
2. Gradient hydrophobic media performs layered interception to block free water and micro emulsified water penetration.
3. Only dry, low-turbidity and fully qualified fuel passes through the filter media with stable low resistance.
4. Captured water accumulates on the media outer surface, merges into large water masses and settles by gravity to complete reliable fuel-water separation.
Key Features
- 5-stage balanced precision filtration: Stable interception of micro water and fine impurities
- Long-term stable hydrophobic performance: Anti-emulsification and anti-scouring without efficiency decay
- Optimized medium-long structural design: Higher dirt holding capacity and longer service cycle
- Full sealed integrated end cap: Zero bypass filtration to ensure full-flow purification stability
-Reinforced rigid internal skeleton: Anti-deformation under continuous pressure fluctuation
- Full OEM dimensional interchangeability: Direct plug-and-play replacement
Full Compatible Velcon Separator Model Range
SO-424V, SO-424V5, SO-430V, SO-436V, SO-614VA5, SO-623VA5, SO-624V5, SO-624VA, SO-624VA5, SO-630VA, SO-630PV5, SO-633VA, SO-633VA5, SO-636PV5, SO-640V, SO-640V5, SO-640VA5, SO-640PV5, SO-644V, SO-644VA5, SO-644PV5, SO-648V, SO-648V5, SO-646V5
Application Scenarios
SO-623VA5 high-stability separation cartridges are widely used in industrial fuel purification systems requiring long-term stable operation, including medium and large oil depot fuel processing lines, port continuous bunkering systems, petrochemical fuel transmission pipelines and general aviation fuel supply terminals. As core secondary separation components, they steadily remove free water and fine contaminants after coalescence treatment, maintain long-term consistent fuel dryness and clarity, and protect downstream fuel pumps, precision metering devices and control valves from moisture corrosion and particle abrasion.
Product Advantages
1. Balanced media grading design avoids rapid clogging and extends service life significantly
2. Stable hydrophobic performance ensures no fuel emulsification even under unstable flow conditions
3. Low and stable pressure drop reduces system load and operation energy consumption
4. 100% size compatibility enables zero-risk replacement for original Velcon filters
5. Complete Velcon filter series supports one-stop bulk procurement and unified after-sales service
FAQ
Q: What is the advantage of SO-623VA5 over ordinary models?
A: It adopts balanced gradient media structure, featuring more stable pressure drop and longer service life, ideal for long-term continuous industrial operation.
Q: Can SO-623VA5 replace original Velcon filter directly?
A: Yes, all installation dimensions, taper and sealing interfaces are fully identical for seamless plug-and-play replacement.
Q: Is SO-623VA5 suitable for variable flow working conditions?
A: Yes, its anti-fluctuation structural design maintains stable separation efficiency even under variable flow and intermittent operation.
Technical Specifications
- Model: Velcon SO-623VA5
- Series: Velcon SO 6000 High-Stability Separator Series
- Execution Standard: API-1581 5th Edition
- Flow Direction: Inside to Outside
- Filter Media: Balanced gradient modified hydrophobic glass fiber
- Operating Temperature: -30℃ ~ +80℃
- Maximum Allowable Differential Pressure: 5.0 bar
- Recommended Replacement Differential Pressure: 0.9 bar
- Applicable Media: Aviation jet fuel, industrial diesel, light hydrocarbon fluids
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