Coalescing Filter Cartridge CF33986

Product introduction

CF33986 is a high-performance industrial coalescing filter cartridge, specially engineered for the efficient separation of liquid droplets and solid particulate impurities from hydrocarbon fuels, industrial gases and aqueous fluids. As a core coalescing and separation component, it integrates dual functions of coalescence (aggregating micro liquid droplets into large, easy-to-separate droplets) and filtration (capturing solid particles), which can effectively remove trace moisture, oil mist and solid contaminants in fluids. It is designed to meet strict industrial separation standards, with a robust structural design that adapts to high-flow and medium-pressure working conditions, and is compatible with mainstream coalescing filter housings on the market. This filter cartridge effectively protects downstream precision equipment such as pumps, meters, valves and combustion systems from erosion, blockage and corrosion, and ensures the purity and stable transmission of fluid media in industrial production processes.

Filtration accuracy

The CF33986 coalescing filter cartridge features ultra-precise dual-stage coalescence and filtration performance, with 99.9% filtration efficiency for solid particulate matter with a particle size of 5μm, thoroughly intercepting fine solid impurities in fluids to avoid abrasive damage to downstream equipment. For micro liquid droplets (including water mist, oil mist and hydrocarbon condensate), it achieves high-efficiency coalescence separation with a liquid removal accuracy of 0.3μm @ 99.95% efficiency, which can aggregate nanoscale micro droplets into large droplets that are quickly captured by the separator’s liquid collection system. Its filtration and coalescence accuracy remains stable under rated flow and pressure conditions, without performance attenuation caused by fluid velocity changes or medium viscosity fluctuations, meeting the ultra-high purity requirements of industrial fluid processing.

Filter media

CF33986 adopts a multi-layer composite gradient coalescing filter media as the core material, composed of hydrophilic/hydrophobic modified borosilicate glass fiber and high-strength polyester non-woven fabric, compounded by a high-temperature hot-melt bonding process without any adhesive additives, avoiding secondary pollution of the medium caused by adhesive dissolution. The outer layer of the media is a rigid polypropylene protective mesh, which enhances the structural strength of the filter cartridge and prevents media deformation or rupture under high-flow impact. The end caps are made of high-quality epoxy resin, with excellent sealing and pressure-bearing performance, and the sealing ring uses nitrile butadiene rubber (NBR) with oil resistance and aging resistance, ensuring zero bypass of unprocessed fluid and reliable coalescence separation effect. The center tube is made of galvanized steel with high corrosion resistance, which supports the filter media and ensures the smooth flow of the processed clean medium.

Replacement cycle

The recommended replacement cycle of the CF33986 coalescing filter cartridge is determined according to the contaminant content of the raw fluid and the actual industrial working conditions, with a basic service life of 8–16 months under normal operating conditions (medium contamination content ≤ 50 ppm). For harsh working conditions with high impurity content (e.g., raw fuel oil with high moisture, industrial gas with heavy oil mist, or wastewater with high solid particles), the replacement cycle is recommended to be 8–12 months to ensure stable coalescence and filtration performance. For clean fluid media with low contamination content (e.g., refined hydrocarbon fuels, dry industrial gas), the cycle can be appropriately extended to 12–16 months with weekly differential pressure detection and monthly fluid purity sampling tests. The first replacement of the filter cartridge in a newly commissioned system is suggested to be completed within 4 months to remove construction residues such as welding slag and pipeline scale, avoiding permanent damage to the coalescing filter media. The optimal replacement timing can also be judged by the system differential pressure: when the pressure difference across the filter cartridge reaches 0.28 MPa, it needs to be replaced in a timely manner to prevent system pressure loss and reduced separation efficiency caused by filter media blockage.

Features

1. High-efficiency dual-stage coalescence & filtration: Integrates micro liquid droplet coalescence and fine solid particle filtration, achieving ultra-high separation accuracy for both liquid and solid contaminants, and meeting the strict purity requirements of industrial fluids.

2. Multi-layer composite filter media: Hydrophilic/hydrophobic modified glass fiber media with gradient pore structure, large dirt-holding capacity and low initial pressure drop, minimizing the energy loss of fluid transmission and realizing energy-saving operation of the system.

3. Robust structural design: Epoxy resin end caps, galvanized steel center tube and polypropylene protective mesh ensure the filter cartridge has excellent pressure-bearing and impact resistance, and can work stably under medium-pressure and high-flow industrial working conditions without deformation or damage.

4. Zero bypass sealing: High-precision NBR sealing ring and epoxy resin end cap bonding ensure perfect sealing of the filter cartridge, preventing unprocessed fluid from entering the downstream pipeline and ensuring the reliability of the separation effect.

5. Wide medium adaptability: Compatible with various industrial media including hydrocarbon fuels (gasoline, diesel, kerosene), industrial gases (natural gas, compressed air, nitrogen), and aqueous fluids, with strong corrosion resistance and no medium compatibility issues.

6. Easy installation & maintenance: Adopts a standard cylindrical structural design, consistent with the installation interface of mainstream coalescing filter housings on the market, no special tools required for disassembly and assembly, reducing the maintenance time and labor cost of the system.

7. No secondary pollution: Adhesive-free hot-melt bonding process for filter media, no chemical additives, ensuring the purity of the processed fluid and avoiding medium contamination.

Application areas

CF33986 coalescing filter cartridge is widely used in various industrial fields that require high-precision liquid-solid separation and fluid purification, and its main application areas include: petrochemical industry (crude oil refining, hydrocarbon fuel storage and transportation, petrochemical raw material processing, removing moisture and solid impurities in gasoline, diesel and jet fuel); natural gas and industrial gas industry (natural gas transmission, LNG plant, compressed air system, nitrogen and oxygen purification, coalescing and removing oil mist and moisture in gases); power generation industry (thermal power plant fuel oil system, gas turbine fuel supply system, ensuring fuel purity and stable combustion of turbines); mechanical manufacturing industry (hydraulic system, lubricating oil system, compressed air for precision processing, removing contaminants in hydraulic oil and lubricating oil to protect precision components); food and pharmaceutical industry (food-grade hydrocarbon solvents, pharmaceutical raw material fluid purification, meeting food and pharmaceutical grade hygiene standards); marine and aerospace industry (ship fuel systems, aerospace hydraulic systems, adapting to harsh working conditions and ensuring the reliability of fluid systems). In addition, it is also applicable to the wastewater treatment and industrial fluid recycling system, achieving efficient separation of oil and water and solid impurities.

Conclusions

CF33986 is a high-reliability coalescing filter cartridge that integrates ultra-precise separation, robust structure, wide adaptability and easy maintenance, and it effectively solves the problem of trace liquid and solid contaminant separation in industrial fluids through the optimized design of multi-layer composite coalescing media and structural materials. Its excellent dual-stage coalescence and filtration performance not only ensures that the processed fluid meets the ultra-high purity requirements of various industrial fields, but also effectively protects downstream precision equipment, reduces the failure rate and maintenance cost of the entire fluid system, and improves the overall operational efficiency and safety of industrial production. With the advantages of low pressure drop, large dirt-holding capacity and no secondary pollution, it is an ideal core component for industrial enterprises to optimize fluid purification systems, reduce comprehensive operating costs and improve product quality. It can be flexibly applied to various complex fluid processing working conditions in petrochemical, gas, power generation, manufacturing and other industries, and has high practical application value and broad market prospects.

Related products

1. High-temperature resistant coalescing filter cartridge CF33986-HT: An upgraded version of CF33986, adopting high-temperature resistant glass fiber media and fluororubber (FKM) sealing ring, applicable to high-temperature fluid systems (working temperature up to 180℃), such as thermal power plant high-temperature fuel oil systems and petrochemical high-temperature refining processes.

2. Stainless steel sintered coalescing filter cartridge: Made of 316L stainless steel sintered mesh, washable and reusable, with high corrosion resistance, suitable for high-sulfur, high-corrosion fluid media such as offshore oil and gas field production and chemical wastewater treatment.

3. High-flow coalescing filter cartridge CF33986-FL: Optimized pleat design and enlarged filter area, with 2–3 times the flow rate of the standard CF33986, applicable to large-flow fluid purification systems such as natural gas long-distance transmission pipelines and petrochemical large-scale storage and transportation stations.

4. Precision pre-filtration filter cartridge for CF33986: Coarse filtration filter cartridge with 20μm filtration accuracy, used for pre-filtration of high-contaminant raw fluid, intercepting large solid particles and large liquid droplets, and can be used in series with CF33986 to further extend the service life of the high-precision coalescing filter cartridge.

5. Matching coalescing filter housing for CF33986: Integrated pressure vessel-type filter housing, equipped with differential pressure gauge, liquid level gauge and automatic drain valve, perfectly matched with CF33986 filter cartridge, applicable to centralized purification of industrial fluids in factory workshops and pipeline stations.

6. Membrane type coalescing filter cartridge: Adopts hollow fiber membrane as coalescing media, with higher liquid removal accuracy (0.1μm), suitable for ultra-high purity fluid purification in semiconductor manufacturing, pharmaceutical and food processing industries.