Replacement High Flow Filter Cartridge HFR20A020D 20μm for Industrial Liquid Filtration
Introduction:This replacement high flow filter cartridge is engineered for heavy-duty industrial liquid prefiltration. It is fully compatible with standard water filter housing and can be installed within self-cleaning filter systems to deliver consistent large-flow performance for raw water, chemical and high-viscosity fluid treatment. Many plant operators face high purchasing costs and long lead times when sourcing original filter elements, and this direct retrofit cartridge serves as a highly cost-effective alternative. With 20 micron rating, it excels in high flow and high dirt-holding applications for coarse particle removal in various industrial filtration processes.
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Product Introduction & Specifications
This HFR20A020D replacement high flow filter cartridge is a 20 micron radial pleated filter built for high flow rate and high solid content industrial filtration. Constructed with special microfiber polypropylene media and FKM/Viton gaskets, it fits standard water filter housing seamlessly and can be integrated with self-cleaning filter units as the primary coarse filtration stage. Its large outer diameter and radial pleat design maximize filtration area while keeping initial pressure drop low. As a drop-in replacement element, it requires no modification to existing pipeline infrastructure.
| Item | Parameter |
|---|---|
| Model | HFR20A020D |
| Micron Rating | 20 μm absolute rating |
| Length | 20 inch (508 mm) |
| Outer Diameter | 6.5 inch (165 mm) |
| Filter Media | Special microfiber polypropylene pleated media |
| Gasket Material | D grade FKM / Viton, chemical resistant |
| Flow Direction | Inside-to-Out |
| Max Operating Temperature & Differential Pressure | 82℃, maximum differential pressure 0.42 MPa |
Key Features & Advantages
High throughput with low initial pressure drop:
Compared with 1μm or 5μm filter cartridges, the 20μm pore structure provides extremely low initial pressure drop and supports higher liquid throughput, ideal for large-volume fluid processing.
Radial Pleat & High Dirt-Holding Capacity:
The unique radial pleated structure greatly boosts dirt holding capacity, extending service life and cutting the downtime caused by frequent filter replacement.
Broad Chemical Compatibility:
Combined polypropylene filter media and Viton gaskets offer stable resistance to acids, alkalis, organic solvents and industrial oil fluids.
100% Direct Retrofit:
The dimension, top handle and end cap design perfectly match standard 6.5 inch industrial high flow filter housings, no pipe reconstruction needed for installation.
Working Principle
This HFR20A020D cartridge adopts inside-to-out flow design. Liquid flows into the inner core of the filter cartridge first, and suspended contaminants are trapped inside the radial pleated filter layers. During filter replacement, captured impurities will not fall down into the downstream clean side to avoid secondary contamination. It uses combined surface and deep depth filtration mechanism. The 3D staggered microfiber structure accurately captures suspended solids, colloids and large particles ≥20 micron from the process liquid.
Applications & Target Industries
RO/UF Pre-filtration for Water Treatment:
Acts as protective security pre-filter for RO membrane and ultrafiltration systems, intercepting coarse particles to protect downstream membrane elements.
Chemical Processing & Petrochemical Industry:
Clarification filtration of acid and alkali liquids, organic solvents and industrial cooling water.
Power Generation:
Condensate polishing and circulating water purification in power station systems.
Coatings, Paints & Resins:
Removal of large particle flocculants and impurities in high viscosity paint and resin raw materials.
Desalination & Sea Water Treatment:
Pre-filtration for seawater desalination projects to reduce solid load for subsequent processing.
Replacement & Cost-Efficiency
Compatibility:
This replacement filter cartridge can directly replace original same-specification filter elements. The interface and sealing dimension are fully matched for quick drop-in swap.
ROI & Total Cost of Ownership Analysis:
1. Lower procurement cost:
Our replacement cartridge brings obvious price advantage compared with original branded filters.
2. Reduced operation & maintenance cost:
The high dirt-holding property extends service life, lowering filter replacement frequency and reducing costly plant downtime.
FAQ
Q1: When should I choose a 20μm filter cartridge instead of a 5μm model?
A: The 20μm filter is preferred when your fluid has high viscosity, high solid content, or only coarse & medium clarification is required. It delivers higher flow rate and longer service life. For RO membrane protection, engineers commonly use the 20μm cartridge as the first-stage coarse pre-filter, followed by a 5μm security filter for finer particle capture.
Q2: What advantages does "D" grade Viton/FKM gasket have compared with EPDM?
A: Viton/FKM gaskets maintain stable sealing performance under strong acid, strong alkali, organic solvent and high-temperature working conditions, while EPDM will fail quickly in these harsh chemical environments.
Q3: How to judge the right time to replace the filter cartridge?
A: Monitor the differential pressure between filter inlet and outlet. Replace the cartridge when differential pressure reaches 0.15–0.2 MPa (20–30 psi), or obvious flow reduction appears.
Q4: What flow path is adopted for HFR20A020D?
A: It uses inside-to-out flow design, which keeps trapped impurities inside the filter media and prevents secondary contamination during replacement.
Q5: Is modification required for existing filter housing?
A: No modification is needed. It is 100% direct retrofit, fits standard 6.5 inch high flow filter housing directly.
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