HFU640UY050H Replacement Filter Cartridge – 5 μm Pall Ultipleat High Flow Compatible
MemKway HFU640UY050H replacement filter cartridge is designed as a compatible alternative for selected Pall Ultipleat High Flow filtration systems. It features 5 μm polypropylene pleated media and an FKM sealing configuration, making it suitable for industrial liquid filtration applications requiring greater chemical resistance than standard EPDM-sealed options.
Compared with HFU640UY050J, which is commonly selected for water-treatment applications using EPDM seals, HFU640UY050H is better suited to chemical processing, oils and selected process-fluid applications where FKM compatibility is preferred. Final suitability should be confirmed based on fluid chemistry, operating temperature and system requirements.
1. Core Specifications
| Parameter | Value |
| Brand | MemKway |
| MemKway Model | MK-U-640PP050V |
| Equivalent Pall Model | HFU640UY050H |
| Compatibility | Pall Compatible Filter Cartridge for HFU Series High Flow Filter Housings |
| Filtration Rating | 5 μm (Absolute) |
| Cartridge Length | 40 inches (1016 mm) |
| Outer Diameter (OD) | 6.0 inches (152.4 mm) |
| Internal Diameter (ID) | 3.5 inches (89 mm) |
| Flow Direction | Inside to outside |
2. Pall HFU640UY050H Compatible Replacement Cross Reference
| Original Pall Model | MemKway Replacement | Rating | Length | Seal |
|---|---|---|---|---|
| HFU640UY050H | MK-U-640PP050V | 5 μm | 40 in | FKM |
| HFU640UY050J | MK-U-640PP050E | 5 μm | 40 in | EPDM |
| HFU640UY020J | MK-U-640PP020E | 2 μm | 40 in | EPDM |
| HFU640UY100J | MK-U-640PP100E | 10 μm | 40 in | EPDM |
3. Material Construction
- Filter Media: Microfiber polypropylene
- Support/Drainage Mesh: Polypropylene
- End Caps & Handle: 10% Glass-Filled Polypropylene (GF PP)
- Outer Wrap: Polypropylene
- O-Ring Seal: Viton Standard / Buna-N, Silicone, EPDM Optional
4. Operating Conditions
| Parameter | Maximum / Recommended Value |
| Maximum Operating Temperature | 82°C (180°F) |
| Maximum Differential Pressure | 3.4 bar @ 82°C (50 psid @180°F) |
| Recommended Change-out Differential Pressure | 2.4 bar @ 20°C (35 psid @ 68°F) |
| Maximum Water Flow Rate | 350 gpm / 1,325 lpm |
5. Pressure Drop on Flow Rate
Removal rating (μm) | Element pressure drop (mbar/m³/h) | Element pressure drop (psi/100 gpm) | ||||
| 20″ | 40″ | 60″ | 20″ | 40″ | 60″ | |
| 1 | 6.08 | 2.94 | 1.98 | 2 | 0.97 | 0.65 |
| 3 | 2.61 | 1.29 | 0.87 | 0.88 | 0.43 | 0.29 |
| 5 | 1.48 | 0.73 | 0.49 | 0.49 | 0.24 | 0.16 |
| 10 | 1.04 | 0.52 | 0.35 | 0.34 | 0.17 | 0.11 |
| 20 | 0.74 | 0.36 | 0.24 | 0.24 | 0.12 | 0.08 |
| 40 | 0.55 | 0.27 | 0.18 | 0.18 | 0.09 | 0.06 |
| 50 | 0.46 | 0.22 | 0.15 | 0.15 | 0.07 | 0.05 |
| 70 | 0.12 | 0.06 | 0.04 | 0.04 | 0.02 | 0.013 |
| 100 | 0.112 | 0.056 | 0.037 | 0.037 | 0.019 | 0.012 |
6. Performance Benefits
Reliable Sealing Performance
The FKM seal helps reduce the risk of leakage in compatible chemical service.
Lower Maintenance Frequency
Large-format pleated construction allows longer operating cycles.
High Dirt Holding Capacity
Pleated polypropylene media provides a large effective filtration area.
Compatible Installation
Designed as a compatible replacement for selected Pall Ultipleat High Flow applications.
7. Typical Applications
- Chemical Manufacturing
- Petrochemical Plants
- Industrial Process Water
- Coatings & Paint Production
- Fine Chemicals
- Specialty Manufacturing
8. Chemical Compatibility
Fluid Type | Typical Compatibility* |
|---|---|
| Industrial Water | Excellent |
| Lubricating Oils | Good |
| Mild Acids | Depends on concentration |
| Mild Alkalis | Depends on concentration |
| Solvent Service | Check chemical compatibility before use |
* Compatibility should always be verified for the specific fluid, concentration, and operating temperature.
9. Quality & Regulatory Compliance
- Certification: Manufactured in an ISO 9001:2015 certified facility.
- Standards: CE marked for international safety and quality standards.
- Food Contact: Materials comply with FDA 21 CFR requirements for food & beverage contact.
10. Cross-Reference Disclaimer
PALL and HFU Series are registered trademarks of their respective owners. MemKway is an independent manufacturer of high-quality replacement filters. Any reference to original part numbers (HFU640UY050H) is for comparison and compatibility information only.
How to Select the Correct Seal Material
| Seal Material | Typical Applications |
|---|---|
| EPDM | Water treatment, RO pretreatment |
| FKM | Many oils, fuels, and selected chemical processes |
| Silicone | Food processing (where applicable) |
| NBR | General industrial fluids |
Always verify seal compatibility with your specific process fluid, operating temperature, and cleaning chemicals before selecting a replacement cartridge.
Difference Between HFU640UY050H and HFU640UY050J
| Item | HFU640UY050H | HFU640UY050J |
|---|---|---|
| Seal Material | FKM | EPDM |
| Typical Use | Chemical processing | Water treatment |
| Chemical Resistance | Higher for many oils and solvents | Better for many water-based chemicals |
| Water Treatment | Suitable | Recommended choice |
When Should You Choose the H Version?
Applications Requiring FKM Seals
Suitable when the filtration system processes:
- Chemical process fluids
- Organic solvents (compatibility depends on the specific chemical)
- Industrial cleaning solutions
- High-temperature compatible liquids within the cartridge’s operating limits
- Industrial manufacturing processes
Frequently Asked Questions (FAQ)
A1: HFU640UY050H replacement filter uses a 5 μm filtration rating with polypropylene pleated media for industrial liquid filtration applications.
A2: Both models use the same 5 μm filtration rating and 40-inch cartridge format. The main difference is the seal material: HFU640UY050H uses FKM, while HFU640UY050J uses EPDM. The H version is generally preferred where greater chemical resistance is required.
A3: FKM offers broader resistance to oils, hydrocarbons and many aggressive chemicals compared with EPDM, making it suitable for selected chemical-processing and process-fluid applications.
A4: It can be used in water-treatment applications when FKM is compatible with the process conditions, although EPDM-sealed HFU640UY050J is often the more typical choice for general RO pretreatment and desalination service.
