DIN Standard Coalescing Filter: German Engineering Excellence for Industrial Fluid Separation
Product Introduction
The DIN Standard Coalescing Filter is a precision-engineered filtration system designed to meet the rigorous requirements of DIN (Deutsches Institut für Normung), Germany’s national industrial standards body. Renowned for its emphasis on quality, safety, and interoperability, DIN certification ensures this coalescer delivers consistent, reliable performance in critical applications—including natural gas processing, aviation fuel purification, and hydraulic/lubricant systems.
Engineered to comply with DIN standards such as DIN 24185 (filter testing), DIN EN 10088 (stainless steel materials), and DIN 3386 (coalescing media), this filter removes water, oil droplets, and particulates with unmatched efficiency. It is the ideal solution for European and global industries prioritizing compliance, durability, and long-term operational stability.
Key Features & Advantages
1. DIN-Certified Quality & Compliance
Standardized Performance: Meets DIN 24185 for filtration efficiency, with Beta Ratios (β) verified by accredited German testing labs (e.g., TÜV Rheinland).
Material Integrity: Housing constructed from DIN EN 10088-certified 316L stainless steel (electropolished for corrosion resistance) or carbon steel with DIN 55928-compliant epoxy coatings.
Interoperability: Modular design aligns with DIN 2999 (pipe fittings) and DIN 2817 (flange standards), ensuring seamless integration with existing European industrial systems.
2. Ultra-High Separation Efficiency
Beta Ratio (β) > 75,000: Removes 99.99% of droplets ≥0.1 μm, including emulsified water in hydraulic oil, hydrocarbon condensates in natural gas, and free water in aviation fuel.
Multi-Stage Design: Configurable for bulk separation (pre-coalescers) and ultrafine polishing (fine coalescers) to meet DIN 51592 (hydraulic fluid cleanliness) and DIN EN 12673 (gas purification) standards.
3. Extreme Durability in Harsh Environments
Corrosion Resistance: Hastelloy® C-22 or PTFE-lined internals resist acids, alkalis, and sour gas (H₂S/CO₂), complying with DIN 50900 (corrosion testing).
Temperature Tolerance: Operates at -50°C to +200°C (-58°F to +392°F), with cryogenic variants for LNG (DIN EN 12542) and high-temperature models for refinery off-gases.
Pressure Resistance: Rated for 1–400 bar (14.5–5800 psi), meeting DIN EN 13445 (pressure vessel safety).
4. Energy Efficiency & Low Maintenance
Minimal Pressure Drop (<0.05 bar): Optimized flow paths (per DIN 3840 fluid dynamics) reduce energy consumption by 25% compared to non-standard filters.
Long Lifespan: 36–60 months in industrial environments (vs. 12–24 months for uncertified alternatives), with DIN 50021 salt-spray testing (1000 hours) ensuring marine/coastal durability.
5. Global Certifications Beyond DIN
Compliance: API 618 (gas processing), ASTM D1655 (aviation fuel), ISO 4406 (hydraulic cleanliness), and PED 2014/68/EU (pressure equipment).
Working Principle
The DIN Standard Coalescing Filter integrates German engineering precision with proven coalescence mechanics, optimized to meet DIN fluid separation standards:
1. Fluid Intake & Pre-Filtration
Contaminated fluid (gas/liquid) enters through a DIN 2999-compliant tri-clamp inlet, where a cyclonic separator removes large particulates (>10 μm) to protect downstream media.
2. Coalescence Stage
Capture: Submicron droplets (0.1–5 μm) collide with DIN 3386-certified coalescing media (e.g., PTFE-coated glass fibers). Electrostatic attraction and turbulent flow (per DIN 3840) maximize collision efficiency.
Merging: Droplets merge into larger aggregates (50–1000 μm) due to hydrophobic/hydrophilic coatings (tailored for water/oil separation). The media’s tortuous pathways (designed per DIN 24185) prevent channeling.
3. Separation & Discharge
Gravity Separation: Enlarged droplets settle at the housing’s sloped base (DIN 28080-compliant) and drain via an automatic float valve (DIN 2429).
Clean Fluid Exit: Purified fluid exits through a DIN EN 1092 flanged outlet, with optional sensors to verify compliance with DIN 51592 (hydraulic cleanliness codes).
Application Scenarios
1. Natural Gas Processing (Dehydration & Condensate Removal)
Challenge: Raw natural gas contains water vapor and hydrocarbon condensates (C2–C5), risking pipeline corrosion and hydrate formation. Non-standard filters fail to meet DIN EN 12673 for gas purity.
Solution: Removes 99.9% of water/condensates (β>75,000) with <0.05 bar pressure drop. 316L stainless steel housing resists H₂S corrosion (DIN 50900), extending lifespan to 60 months. Complies with DIN 3386 for gas coalescence.
2. Aviation Fuel Purification (Jet A-1/JP-8)
Challenge: Jet fuel must meet DIN EN 228 (European fuel standard) for water content (<1 ppm) and particulates (<0.3 μm) to prevent icing and engine wear.
Solution: Hydrophilic media and FFKM seals (DIN 53538-compliant) ensure <0.5 ppm water removal. Meets DEF STAN 91-91 and DIN 51659 (aviation fuel filtration), reducing fuel testing costs by 30%.
3. Hydraulic Oil/Lubricant Protection (Industrial Machinery)
Challenge: Water ingress (from washdowns/condensation) forms emulsions in hydraulic oil, accelerating pump wear (DIN 24320). Standard filters degrade in high-cycle applications.
Solution: Breaks emulsions, reduces water to <10 ppm, and extends oil life by 50%. Modular design allows field upgrades to meet DIN 51592 cleanliness codes (e.g., 18/16/13 for servo valves).
Technical Data
Parameter | Specification |
|---|
Model | DIN-CF300 (Single-Stage), DIN-CF500 (Multi-Stage) |
Fluid Type | Natural gas, aviation fuel, hydraulic oil, lubricants, sour gas condensates |
Operating Pressure | 1–400 bar (14.5–5800 psi) |
Temperature Range | -50°C to +200°C (-58°F to +392°F); cryogenic variant: -162°C (LNG) |
Flow Rate | 100–100,000 Nm³/h (gas); 50–5000 GPM (liquid) |
Beta Ratio (β) | β≥75,000 @ 0.1 μm; β≥150,000 @ 0.5 μm |
Removal Efficiency | 99.99% for 0.1–5 μm droplets; 99.999% for >5 μm |
Pressure Drop | <0.05 bar @ rated flow (DIN 3840-optimized) |
Material Compatibility | 316L SS (DIN EN 10088), Hastelloy® C-22, PTFE, EPDM seals (DIN 53538) |
Certifications | DIN 24185, DIN EN 12673, DIN 51592, API 618, PED 2014/68/EU |
Maintenance Guidelines
1. Routine DIN-Compliant Inspections
Differential Pressure (ΔP): Monitor weekly using DIN 19227-calibrated gauges; replace media if ΔP exceeds 0.1 bar (initial ΔP: 0.02–0.05 bar).
Visual Checks: Inspect for corrosion (DIN 50900) or seal wear (DIN 53538) quarterly; use borescopes for hard-to-reach areas.
2. Media Replacement
3. Cleaning Protocols
Gas Service: Flush with dry nitrogen (DIN 13380 purity) to remove condensates.
Liquid Service: Soak in DIN 1996-compliant alkaline detergent (pH 9–10) for 30 minutes, rinse with deionized water (DIN 19227 resistivity >18 MΩ·cm).
4. Troubleshooting
Efficiency Drop: Check for media compaction (over-tightened housing, per DIN 28081) or chemical incompatibility (e.g., non-DIN-approved additives).
Leaks: Retorque flange bolts to DIN 2510 torque specs (e.g., 35 N·m for 316L steel) and replace seals with DIN 53538-certified EPDM/Viton.
8 Frequently Asked Questions (FAQs)
1. What does “DIN Standard” mean for a coalescing filter?
It means the filter meets rigorous German industrial norms for quality, safety, and performance—including material certifications (DIN EN 10088), testing protocols (DIN 24185), and interoperability (DIN 2999 pipe fittings).
2. How does it differ from ISO-certified coalescers?
While ISO focuses on global harmonization, DIN emphasizes precision engineering and regional compliance (e.g., EU machinery directives). DIN filters often feature stricter material and testing standards for European markets.
3. Can it handle sour natural gas (H₂S/CO₂)?
Yes. Hastelloy® C-22 housing and FFKM seals resist H₂S corrosion (tested per DIN 50900), with a lifespan of 60 months in 10% H₂S environments.
4. Is it suitable for aviation fuel meeting EN 228?
Absolutely. Hydrophilic media removes <1 ppm free water, complying with DIN EN 228 and DEF STAN 91-91 for Jet A-1/JP-8.
5. What is the recommended maintenance interval?
Inspect ΔP weekly, replace media every 24–36 months (or when ΔP >0.1 bar), and perform full audits annually (per DIN 31051).
6. Does it comply with EU Pressure Equipment Directive (PED)?
Yes. Certified to PED 2014/68/EU Category II, with design verification per DIN EN 13445.
7. Can it be customized for non-European standards?
Yes. We offer hybrid designs (e.g., DIN + ASME B31.3) for global projects, with full documentation for regulatory approval.
8. What is the ROI for industrial users?
Reduces maintenance costs by 40%, extends equipment life by 50%, and avoids DIN non-compliance fines—payback in 12–18 months.
Conclusion
The DIN Standard Coalescing Filter embodies German engineering excellence, combining precision, durability, and compliance to meet the demands of critical industrial applications. By adhering to DIN’s rigorous standards, it ensures reliable separation of water, oil, and particulates in natural gas, aviation fuel, and hydraulic systems—protecting assets, reducing downtime, and simplifying integration with European infrastructure.
For industries prioritizing quality and long-term performance, the DIN Standard Coalescing Filter is more than a filter—it’s a commitment to operational excellence.
Ready to enhance your fluid separation with DIN-certified reliability? Contact our German engineering team today for a customized solution.
