I-65683TB Coalescing Separation Natural Gas Filter Cartridge

Product introduction

I Series coalescing filter cartridges are high-performance industrial coalescing elements designed for the efficient removal of liquid aerosols, water droplets, oil mist and fine solid particles from compressed air, natural gas, process gases and hydrocarbon fluids. Developed as a standardized, versatile product line, the series integrates advanced coalescence technology with precision filtration, delivering stable and reliable separation performance under variable pressure, flow and temperature conditions. These cartridges are engineered to aggregate micro-sized liquid droplets into larger, easily separable ones, while simultaneously capturing solid contaminants, ensuring the output of clean, dry gas or fluids that meet strict industrial quality standards. With universal dimensions and interfaces, I Series cartridges are fully compatible with mainstream coalescing filter housings, air dryers, gas processing units and fluid purification systems, effectively protecting downstream equipment such as pneumatic instruments, gas turbines, compressors, valves and sensors from corrosion, erosion, blockage and performance failure.

Filtration accuracy

I Series coalescing filters feature graded precision levels to accommodate diverse application requirements, with consistent high efficiency across the range. For solid particulate removal, standard filtration ratings include 1μm, 0.1μm and 0.01μm, with removal efficiency reaching up to 99.99% for rated particle sizes, effectively capturing fine dust, pipeline scale, metal particles and colloidal contaminants. In terms of liquid coalescing performance, the series demonstrates exceptional capability in separating liquid aerosols and oil mist, with liquid removal precision ranging from 0.1μm down to 0.01μm and separation efficiency as high as 99.999%. High-grade models can reduce residual oil carryover in compressed air to below 0.001 ppm and moisture content to extremely low levels, satisfying the stringent purity demands of pharmaceutical manufacturing, electronics production, food processing, precision instrumentation and high-pressure natural gas transmission. The separation and filtration accuracy remains stable under rated operating conditions, with no significant degradation due to fluctuations in flow rate, pressure or ambient temperature.

Filter media

The entire I Series utilizes premium, application-specific composite filter media engineered for optimal coalescing efficiency and service life. Standard general-purpose models employ hydrophobic borosilicate microglass fiber media produced through an adhesive-free hot-melt lamination process, featuring a gradient pore structure that enhances liquid droplet coalescence, maximizes dirt-holding capacity and maintains low initial pressure drop, while eliminating the risk of secondary contamination from adhesive dissolution. For high-temperature and chemically aggressive environments, the series uses PTFE-coated microglass fiber or sintered PTFE media, offering superior chemical resistance, thermal stability and anti-aging properties. All media is reinforced with an internal corrosion-resistant metal support tube (galvanized steel, 304 or 316L stainless steel) and an outer protective mesh to prevent deformation under high flow or pressure. End caps are constructed from high-strength epoxy resin or corrosion-resistant metal, paired with high-performance sealing gaskets (NBR, EPDM or FKM) to ensure zero bypass and reliable sealing throughout the service life.

Replacement cycle

The replacement cycle for I Series coalescing filter cartridges is determined by the specific model, operating environment, fluid/gas contamination level and monitoring data, with a typical service life ranging from 6 to 24 months under normal operating conditions. For standard models in moderately contaminated systems (e.g., general industrial compressed air), the recommended replacement interval is 12–18 months. In harsh environments with high concentrations of liquid aerosols, dust or chemical contaminants, such as chemical plants, refineries and heavy manufacturing facilities, the cycle should be shortened to 6–12 months to maintain optimal separation efficiency. In clean applications, including electronics manufacturing, pharmaceutical processing and laboratory gas systems, the service life can be extended to 18–24 months with regular differential pressure monitoring and periodic quality testing. For newly commissioned gas or fluid systems, the first replacement is recommended within 4–6 months to remove installation residues. The definitive trigger for replacement is a differential pressure across the cartridge of 0.07–0.1 MPa (compressed air systems) or 0.2–0.35 MPa (gas/fluid systems), indicating significant media blockage and reduced performance.

Features

1. High-precision coalescing and filtration: Integrates efficient liquid aerosol separation and fine solid particle removal, achieving ultra-clean output with extremely low residual liquid and particulate levels.

2. Advanced gradient pore media: Proprietary microglass fiber with layered pore structure delivers high coalescing efficiency, large dirt-holding capacity and low pressure drop, reducing energy consumption.

3. Adhesive-free manufacturing: Eliminates chemical additives, preventing secondary contamination and ensuring the purity of processed gases and fluids.

4. Robust and durable construction: Reinforced internal support, high-strength end caps and premium gaskets provide excellent pressure resistance, deformation resistance and zero-bypass sealing.

5. Modular series design: A complete range of precision, size and material variants ensures broad compatibility and easy replacement across various systems.

6. Wide environmental adaptability: Suitable for use across a broad temperature range and compatible with most industrial gases, compressed air and hydrocarbon fluids, with excellent chemical and aging resistance.

7. Easy installation and maintenance: Standardized dimensions and user-friendly design enable tool-free replacement, minimizing system downtime and maintenance costs.

8. Cost-effective operation: Long service life and low pressure drop reduce operational expenses, while protecting valuable downstream equipment and extending service intervals.

Application areas

I Series coalescing filter cartridges are widely used across industries requiring high-purity gas and fluid processing, with key application areas including:Compressed air purification: Removing oil mist and water aerosols in general manufacturing, automotive, electronics, pharmaceutical and food and beverage industries, ensuring ISO 8573 compliant air quality.Natural gas processing: Coalescing and separating liquid hydrocarbons, water droplets and particulates in wellheads, gathering stations, transmission pipelines, city gate stations and LNG facilities.Process gas treatment: Purifying hydrogen, nitrogen, argon and other industrial process gases, protecting reactors, catalysts and precision processing equipment.Petrochemical and refining: Removing liquid contaminants and particulates from process gases, fuel gases and vent gases in refineries and chemical plants.Pharmaceutical and food production: Providing sterile, oil-free and moisture-free compressed air and gases for sensitive production processes, meeting hygiene and regulatory standards.Electronics manufacturing: Supplying ultra-pure compressed air and process gases for semiconductor fabrication, precision assembly and cleanroom applications.Power generation: Treating fuel gas, instrument air and turbine inlet air in gas turbines, thermal power plants and combined-cycle power stations.Marine and offshore: Purifying compressed air, natural gas and fuel gases on ships and offshore platforms, adapting to corrosive marine environments.

Conclusions

I Series coalescing filter cartridges represent a state-of-the-art, reliable solution for industrial liquid aerosol and particulate removal, combining advanced media technology, robust construction and a versatile product range. By delivering efficient coalescence and precision filtration, they significantly enhance the purity and stability of processed gases and fluids, protect critical downstream equipment, reduce maintenance costs and ensure compliance with strict industrial and regulatory standards. The series’ wide precision options, material formulations and environmental adaptability make it suitable for nearly all coalescing applications, from general compressed air purification to ultra-demanding clean gas processes. As a core component in modern gas and fluid processing systems, I Series cartridges offer outstanding performance, durability and cost-effectiveness, making them a preferred choice for industrial operators worldwide seeking high-quality coalescing solutions.

Related products

1. I Series Pre-Filter Cartridges: Coarse filtration models with ratings of 3μm, 5μm and 10μm, used upstream to remove large particles and extend the service life of high-precision I Series coalescing cartridges.

2. I-HT High-Temperature Series: Upgraded with heat-resistant media and FKM gaskets, designed for high-temperature gas and fluid systems up to 180℃, such as process gas and hot oil systems.

3. I-CR Corrosion-Resistant Series: Equipped with 316L stainless steel components and PTFE-coated media, suitable for highly corrosive gases, chemical process streams and aggressive environments.

4. I-FL High-Flow Series: Features expanded filtration area and high-density pleating, providing 2–3 times the flow capacity of standard models for large-scale gas transmission and industrial plants.

5. Matching Coalescing Filter Housings: Integrated housings with differential pressure gauges, liquid collection chambers and automatic drain valves, fully compatible with I Series cartridges.

6. I-PO Post-Filtration Polishing Cartridges: Ultra-fine final filtration models with 0.001μm precision, used downstream to achieve ultra-pure gas for critical applications like semiconductors and pharmaceuticals.

7. Portable Coalescing Purification Units: Mobile gas purification systems utilizing I Series cartridges, for on-site treatment, emergency support and temporary gas supply.

8. Synthetic Gas Special I Series Cartridges: Media modified for compatibility with specialty synthetic gases, ensuring stable separation performance in specialized industrial processes.

SO629PLBZ	I6446	FOS618PL05	FO644PLF1TB	FO614PLF2
SO629PLF3	I6446TB	FOS618PL1/2	FO644PLF25M	FO614PLF25
SO629VA	I64483	FOS618PLP8	FO644PLF25TB	FO614PLF25M
SO630C	I64483TB	FOS636PL05	FO644PLF2M	FO614PLF5
SO630PV	I64485	FOS636PL1/2	FO644PLF2TB	FO614PLF5M
SO633C	I64485TB	FOS636PLP8	FO644PLF5M	FO614PLF75
SO633VA	I64487	FOS718PL25	FO644PLF5TB	FO629A3
SO636PV	I64487TB	I4084	FO656PLF2TB	FO629PL55
SO636V	I644C5	I4124	FO656PLF5TB	FO629PLF1
SO636VA	I644C5TB	I4126	FO718PL01	FO629PLF1/2
SO6370VA	I6560	I4154	FO718PL02	FO629PLF10
SO640PV	I6560TB	I4156	FO718PL05	FO629PLF2
SO640V	I6562	I4184	FO718PL05B	FO629PLF25
SO643C	I6562TB	I4186	FO718PL1/2	FO629PLF2TB
SO643VA5	I6-564TB	I4204	FO718PL15	FO629PLF5
SO644PLBZ	I6-566	I4208C	FO718PL50	FO644A3
SO644PLF3	I6-566TB	I4246	FO718PLP3	FO644PLF1/2
SO644PV	I6-5681TB	I4248F	FO736PL05	FO644PLF1/2M
SO644V	I6-5683TB	I5156	FO736PL1/2	FO644PLF1/2TB
SO644VA5	I6-5685	I6112	FO736PL15	FO644PLF10M
SO656C	I-65685TB	I-6116	FOS512PL25	FO644PLF10TB
I-614 MM	I-622 MM	I-633 MMTB	I-644 MMTB	FO-419APL5
SO656V	I65687	I-61183	FOS614PL05	FO644PLF1M
FO-629PLF5	I-628 MM	I-628 MMTB	I6-4487TB	SO-644VA5