RoHS Compliant Coalescer: Eco-Friendly Filtration for Sustainable Industrial Separation
Product Introduction
The RoHS Compliant Coalescer is a next-generation filtration system engineered to meet the stringent environmental and safety standards of the EU Restriction of Hazardous Substances (RoHS) Directive 2011/65/EU. Designed for critical applications in natural gas processing, aviation fuel purification, and hydraulic/lubricant systems, this coalescer eliminates harmful substances like lead, mercury, cadmium, hexavalent chromium, and polybrominated flame retardants (PBB/PBDE) from its construction and operation.
By integrating RoHS compliance with advanced coalescence technology, the filter ensures reliable separation of water, oil droplets, and particulates while minimizing environmental impact. It is the ideal solution for industries prioritizing sustainability, global regulatory alignment (e.g., REACH, WEEE), and corporate social responsibility (CSR)—from European manufacturers to multinational energy corporations.
Key Features & Advantages
1. RoHS Compliance: Zero Hazardous Substances
Substance Restriction: Contains no RoHS-listed hazardous materials (Pb <1000 ppm, Hg <1000 ppm, Cd <100 ppm, Cr(VI) <1000 ppm, PBB/PBDE <1000 ppm).
Material Transparency: Full material declaration (IMDS-compliant) for supply chain traceability, ensuring compliance with EU, U.S. (TSCA), and Asian (China RoHS) regulations.
Eco-Friendly Design: Recyclable 316L stainless steel housing and biodegradable media options reduce landfill waste.
2. Ultra-High Separation Efficiency
Beta Ratio (β) > 200,000: Removes 99.999% of droplets ≥0.01 μm, including submicron water in aviation fuel, hydrocarbon condensates in natural gas, and emulsified oil in hydraulic oil.
Multi-Stage Customization: Pre-coalescers (bulk separation) and fine coalescers (ultrafine polishing) optimize flow distribution per ISO 16889 (hydraulic fluid cleanliness).
3. Robust Construction for Harsh Environments
Material Durability: 316L stainless steel (ASTM A240), PTFE-coated glass fiber media (FDA-compliant), and FFKM seals (USP Class VI) resist corrosion, abrasion, and extreme temperatures (-60°C to +250°C / -76°F to +482°F).
Pressure Resistance: Rated for 1–500 bar (14.5–7250 psi), with cryogenic variants for LNG (EN 12542) and high-temperature models for refinery off-gases.
4. Energy Efficiency & Cost Savings
Minimal Pressure Drop (<0.04 bar): Optimized flow paths reduce pumping energy costs by 35% compared to non-RoHS filters.
Extended Lifespan: 48–72 months in industrial environments (vs. 12–24 months for conventional filters), with ASTM G154 UV resistance testing for outdoor durability.
5. Global Certifications Beyond RoHS
Compliance: ISO 8573-1 (compressed air purity), API 618 (gas compressors), ASTM D1655 (aviation fuel), and ISO 4406 (hydraulic cleanliness).
Working Principle
The RoHS Compliant Coalescer combines eco-friendly materials with proven coalescence mechanics to achieve sustainable, efficient separation:
1. Fluid Intake & Pre-Filtration
Contaminated fluid (gas/liquid) enters through a RoHS-compliant flanged inlet (316L stainless steel, no cadmium-plated fasteners), where a cyclonic separator removes large particulates (>10 μm) to protect downstream media.
2. Coalescence Stage (RoHS-Optimized Media)
Capture: Submicron droplets (0.01–5 μm) collide with electrostatically charged PTFE-coated glass fibers (free of PBB/PBDE flame retardants) via turbulent flow. Electrostatic attraction and van der Waals forces maximize collision efficiency.
Merging: Droplets merge into larger aggregates (50–1000 μm) as they navigate the media’s tortuous pathways, aided by hydrophobic/hydrophilic coatings (REACH-compliant).
3. Separation & Discharge (Eco-Safe Mechanisms)
Gravity Separation: Enlarged droplets settle at the housing’s sloped base (drainage design compliant with ISO 16001) and drain via a lead-free float valve.
Clean Fluid Exit: Purified fluid exits through a RoHS-compliant outlet, with optional sensors to verify compliance with ISO 8573-1 purity standards.
Application Scenarios
1. Natural Gas Processing (Eco-Friendly Dehydration)
Challenge: Raw natural gas from European shale fields contains water vapor and H₂S, risking pipeline corrosion (EN 14161) and environmental contamination. Non-RoHS filters may leach heavy metals into soil/water.
Solution: 316L stainless steel housing (no hexavalent chromium coating) resists H₂S; removes 99.9% of water/condensates (β>200,000) with <0.04 bar pressure drop. Complies with EU Methane Strategy by reducing fugitive emissions.
2. Aviation Fuel Purification (Sustainable Fuel Handling)
Challenge: Jet fuel (Jet A-1) must meet ASTM D1655 (<1 ppm free water) to prevent icing, while airports enforce RoHS for equipment in passenger terminals.
Solution: Hydrophilic PTFE media (REACH-compliant) removes <0.05 ppm water. FFKM seals (no lead stabilizers) prevent leaks in refueling systems (e.g., London Heathrow).
3. Hydraulic Systems (Green Machinery Protection)
Challenge: Water ingress forms emulsions in hydraulic oil, accelerating pump wear. Mining/construction equipment in the EU requires RoHS-compliant components.
Solution: Breaks emulsions, reduces water to <10 ppm, and extends oil life by 75%. Aluminum alloy housing (no cadmium anodizing) resists corrosion in offshore wind farms (e.g., North Sea).
Technical Data
Parameter | Specification |
|---|
Model | RoHS-CF500-EF (Eco-Friendly), RoHS-CF500-HT (High-Temperature) |
Fluid Type | Natural gas, aviation fuel, hydraulic oil, sour gas condensates |
Operating Pressure | 1–500 bar (14.5–7250 psi) [ISO 4126 safety standards] |
Temperature Range | -60°C to +250°C (-76°F to +482°F); cryogenic variant: -196°C (LNG) |
Flow Rate | 200–200,000 Nm³/h (gas); 100–10,000 GPM (liquid) |
Beta Ratio (β) | β≥200,000 @ 0.01 μm; β≥400,000 @ 0.1 μm |
Removal Efficiency | 99.999% for 0.01–1 μm droplets; 99.9999% for >1 μm |
Pressure Drop | <0.04 bar @ rated flow (ISO 5167 optimized) |
Material Compatibility | 316L SS (ASTM A240, RoHS-compliant), PTFE, FFKM (USP Class VI), aluminum alloy (no Cd) |
Certifications | RoHS 2011/65/EU, REACH SVHC, ISO 8573-1, API 618, ASTM D1655 |
Maintenance Guidelines
1. RoHS-Compliant Routine Inspections
Visual Checks: Monthly inspection for seal wear (using lead-free tools) and corrosion (per ASTM D610).
Differential Pressure (ΔP): Monitor weekly using ISO 5167-calibrated gauges; replace media if ΔP exceeds 0.1 bar (initial ΔP: 0.02–0.05 bar).
2. Media Replacement (RoHS-Approved Parts)
Use OEM-certified RoHS-compliant media (PTFE-coated fibers, no PBB/PBDE) to maintain β-ratio and eco-safety.
Replace entire cartridge assemblies (per ISO 16001) to avoid flow imbalances.
3. Cleaning Protocols
Gas Service: Flush with dry nitrogen (ISO 8573-1 purity) to remove condensates.
Liquid Service: Soak in biodegradable detergent (pH 7–9, REACH-compliant) for 30 minutes; rinse with deionized water.
4. Troubleshooting (Eco-Best Practices)
Leaks: Retorque flange bolts with lead-free tools; replace seals with RoHS-compliant FFKM.
Efficiency Drop: Check for media compaction (avoid over-tightening) or chemical incompatibility (REACH SVHC list).
8 Frequently Asked Questions (FAQs)
1. What does “RoHS Compliant” mean for a coalescing filter?
It means the filter contains none of the six restricted hazardous substances (lead, mercury, cadmium, hexavalent chromium, PBB, PBDE) listed in RoHS 2011/65/EU, ensuring environmental safety and regulatory compliance.
2. How does RoHS compliance benefit my business?
It reduces environmental liability, meets EU/Asian market access requirements, and aligns with CSR goals. Many corporations now mandate RoHS compliance for suppliers.
3. Can it handle high-sulfur natural gas?
Yes. Hastelloy® C-276 housing (RoHS-compliant) resists H₂S corrosion, and media removes 99.9% of sulfur-containing condensates (β>200,000).
4. Is it suitable for aviation fuel at EU airports?
Absolutely. Meets ASTM D1655 (<1 ppm water) and RoHS for equipment in passenger zones. Tested to EN 13648 (fuel filtration) for airports like Paris CDG.
5. What is the maximum flow rate?
Up to 200,000 Nm³/h for gas processing, with ISO 5167-optimized flow paths to minimize energy use.
6. How often should maintenance be performed?
Inspect ΔP weekly, replace media every 24–36 months (or when ΔP >0.1 bar), and conduct annual RoHS compliance audits.
7. Does it use biodegradable materials?
Yes. Media options include plant-based fibers (e.g., cellulose acetate), and the 316L stainless steel housing is 100% recyclable.
8. What is the ROI for industrial users?
Reduces waste disposal costs by 40%, extends equipment life by 60%, and avoids RoHS non-compliance fines—payback in 12–18 months.
Conclusion
The RoHS Compliant Coalescer redefines industrial filtration by merging sustainability with performance. By eliminating hazardous substances and optimizing separation efficiency, it protects both your operations and the planet—from purifying natural gas in EU pipelines to safeguarding aviation fuel at global airports.
In an era of increasing environmental regulation and consumer demand for green solutions, this coalescer is more than a component: it’s a statement of your commitment to sustainability.
Ready to upgrade to a RoHS-compliant, eco-friendly solution? Contact our sustainability team today for a custom design.
