HF626-20 High Flow Filter Cartridge for Process Water | Replacement for CUNO High Flow Filter Cartridges
Introduction:For small to medium industrial process water and RO pre-filtration projects, water treatment integrators and factory maintenance teams source reliable Liquid Filters and Self Cleaning Filter to protect downstream membrane equipment. Our HF626-20 high flow filter cartridge serves as a drop-in replacement for CUNO high flow filter cartridges. It delivers steady single-element flow, reduces the quantity of filter elements inside the water filter housing and cuts regular maintenance labour cost. With compact structure and good contaminant holding capability, this filter is widely used for process water purification, small RO pretreatment and circulating water filtration.
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Product Introduction
HF626-20 high flow filter cartridge is a 20-inch horizontal pleated filter element, perfectly matched with dedicated water filter housing. It can operate with a self-cleaning filter to establish multi-stage raw water protection, trapping silt, suspended solids and colloidal contaminants before water enters RO systems. The original CUNO high flow filter has obvious drawbacks: high original purchasing price, long shipment lead time, and the pleated media may suffer partial tearing under frequent pressure fluctuation, shortening service cycle. Our HF626-20 adopts reinforced polypropylene pleated media with optimized pleat density to avoid media damage under high differential pressure. It keeps stable particle holding performance and can directly replace CUNO high flow filter cartridges without modifying your existing water filter housing. Multiple micron grades are available to accommodate different raw water turbidity, offering dependable pre-filtration protection for small and medium industrial water treatment projects.
Working Principle
Raw water flows from the outer surface inward through multi-layer pleated polypropylene media of HF626-20 high flow filter cartridge. Sediment, rust particles and colloidal impurities are captured on the media surface and depth layers, while purified water flows through the inner support core to subsequent treatment units. The pleated design greatly expands the effective filtration area. As pollutants accumulate gradually, system differential pressure rises. When pressure difference reaches the preset threshold, operators can complete cartridge replacement quickly. This pre-filtration process removes most particulate pollutants in advance, preventing scratch and fouling on expensive RO membrane elements and prolonging the service life of reverse osmosis membranes.
Technical Specifications
| Item | Parameter |
|---|---|
| Model | HF626-20 |
| Material | Reinforced Polypropylene Media / PP Inner Core |
| Length | 20 inch |
| Filtration Rating | 1μm,5μm,10μm,20μm,50μm |
| Single Cartridge Flow Rate | Up to 38 m³/h |
| Max Operating Temperature | 82℃ |
| Max Differential Pressure | 3.4 bar |
| Connection Type | DOE (Double Open End) |
| Compatibility | Drop-in replacement for CUNO high flow filter cartridge |
Core Advantages
1. Compact 20-inch Design for Small Systems
The short 20-inch size provides stable single-element flow. Fewer filter cartridges are required in the water filter housing, saving installation footprint and simplifying spare parts inventory for small-scale water treatment systems.
2. Direct Replacement for CUNO High Flow Filters
Same outer dimension and DOE end cap interface. No housing reconstruction needed. Compared with original CUNO products, our filter features shorter lead time and lower overall procurement expense. The reinforced pleat structure solves the common weakness of media tearing under fluctuating water pressure.
3. Excellent Dirt Holding Capacity
Optimized pleat spacing maximizes impurity retention. It reduces the pollutant burden of downstream RO membranes, lowers membrane chemical cleaning frequency and stabilizes continuous operation of the whole water system.
4. Wide Chemical Compatibility
Full polypropylene construction resists most dilute acids, alkalis and aqueous solutions. It adapts to various raw water quality in different industrial sectors.
5. Rapid and Simple Maintenance
DOE connection supports fast cartridge replacement. Less filter elements mean shorter system shutdown time during maintenance, saving operation labour cost.
Application Scenarios
Small-scale industrial RO pretreatment for pure water production
Factory process water filtration
Food & beverage minor production water purification
Cooling tower side-stream circulating water filtration
Laboratory and commercial water treatment
Small seawater desalination pre-filtration
FAQ
Q1: Can HF626-20 directly replace CUNO high flow filter cartridges?
A1: Yes. It has identical overall dimension and DOE interface. It can be fitted to your current water filter housing directly without modification.
Q2: What micron rating should I pick for RO pretreatment?
A2: 5μm and 10μm are standard selections for RO pretreatment. If raw water contains heavy sediment, choose 20μm as primary pre-filtration.
Q3: How to extend the working life of HF626-20?
A3: Install a self-cleaning filter on upstream to intercept large debris. Continuously monitor differential pressure and replace cartridges once pressure difference hits the upper limit.
Q4: Can HF626-20 be cleaned and reused?
A4: HF626-20 is disposable pleated polypropylene filter. Repeated cleaning will damage filter media and reduce filtration precision, replacement is recommended after clogging.
Q5: What is the maximum differential pressure for HF626-20?
A5: The maximum allowable differential pressure is 3.4 bar at 20℃. Operating pressure exceeding this value may lead to pleat collapse and filter failure.
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