HFU640UY050J Replacement Filter Cartridge – 5 μm Pall Compatible High Flow Filter
HFU640UY050J Replacement High Flow Filter Cartridge for Pall Compatible Industrial Water Filtration
MemKway HFU640UY050J replacement filter cartridge is designed for industrial water applications using Pall Ultipleat High Flow housings. The cartridge combines a 5 μm polypropylene pleated medium with an EPDM sealing configuration, making it particularly suitable for RO pretreatment, desalination, cooling water and general process-water filtration.
Compared with FKM-sealed alternatives intended for more aggressive chemical service, the HFU640UY050J configuration is better aligned with water-treatment applications where EPDM is commonly selected. Final compatibility should be confirmed using the complete OEM part number, seal requirement and operating conditions.
Learn more about the differences between Pall HFU and 3M High Flow filter cartridges in our technical comparison guide.
1. Core Specifications
| Parameter | Value |
| Brand | MemKway |
| MemKway Model | MK-U-640PP050E |
| Equivalent Pall Model | HFU640UY050J |
| 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. Material Construction
- Filter Media: Polypropylene
- Support/Drainage Mesh: Polypropylene
- End Caps & Handle: 10% Glass-Filled Polypropylene (GF PP)
- Outer Wrap: Polypropylene
- O-Ring Seal: EPDM Standard / Buna-N, Silicone, Viton Optional
3. 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 |
4. 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 |
5. Key Features & Benefits
Direct Replacement for HFU640UY050J
Designed as a compatible replacement for HFU640UY050J applications, with dimensions and configuration intended for installation in compatible Pall Ultipleat High Flow housings.
High-Capacity 5 Micron Filtration
The 5-micron filtration rating is ideal for removing larger suspended solids, rust particles, sand, and process contaminants while protecting downstream filtration equipment.
High Flow Rate Design
The 6-inch diameter pleated structure supports high flow rates while requiring fewer cartridges and smaller housings compared with conventional filter systems.
Superior Dirt-Holding Capacity
Advanced pleated polypropylene media provides exceptional contaminant loading capacity and longer operating cycles between filter replacements.
Reduced Operating Costs
As a reliable Pall HFU640UY050J replacement filter cartridge and alternative to Pall filter, this cartridge helps reduce maintenance downtime, replacement frequency, and overall filtration costs.
Broad Chemical Compatibility
Constructed from high-quality polypropylene materials, making it suitable for a wide range of industrial water and process fluid applications.
6. Typical Applications of HFU640UY050J Replacement Filter Cartridge
- Reverse Osmosis (RO) Pretreatment
- Seawater Desalination Systems
- Industrial Water Treatment
- Power Plant Water Filtration
- Oil & Gas Produced Water Treatment
- Petrochemical Process Water Filtration
- Municipal Water Treatment
- Cooling Water & Utility Water Systems
7. HFU640UY050J vs HFU640UY050H – Which Seal Should You Choose?
| Item | HFU640UY050J | HFU640UY050H |
|---|---|---|
| Micron Rating | 5 μm | 5 μm |
| Length | 40 in | 40 in |
| Filter Media | Polypropylene | Polypropylene |
| Standard Seal | EPDM | FKM |
| Typical Use | RO pretreatment, desalination, water treatment | Chemical processing, oils, selected solvent service |
| Best Choice When | Water compatibility is the priority | Chemical resistance is the priority |
Explore our complete range of Pall Ultipleat High Flow replacement cartridges, including compatible HFU UY and GF series models.
8. Why Choose a 5 μm HFU640UY050J Replacement?
The 5 μm rating provides a practical balance between particulate removal, dirt-holding capacity and system pressure drop. This makes HFU640UY050J replacement cartridges particularly suitable for RO pretreatment and industrial process water applications where downstream equipment requires protection from suspended solids without unnecessarily restricting system flow.
| Application Requirement | Recommended Rating |
|---|---|
| Fine particulate control | 1–2 μm |
| General RO pretreatment | 5 μm – HFU640UY050J |
| General process protection | 10 μm |
| Coarse pretreatment | 20 μm+ |
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 (HFU640UY050J) is for comparison and compatibility information only.
Pall Ultipleat HFU Series Cross Reference Table
MemKway manufactures compatible high flow replacement cartridges for selected Pall Ultipleat High Flow applications. Model selection should be confirmed using the OEM part number, micron rating, cartridge length and seal configuration.
| Pall Models | Micron Rating | Length | MemKway Replacement |
|---|---|---|---|
1 μm |
40″ |
MK-U-640PP010E | |
HFU640UY020J |
2 μm |
40″ |
MK-U-640PP020E |
HFU640UY050J |
5 μm |
40″ |
MK-U-640PP050E |
10 μm |
40″ |
MK-U-640PP100E | |
HFU640UY050H |
5 μm |
40″ |
MK-U-640PP050V |
How to Select the Correct Replacement?
Choose by Micron Rating
Need finer filtration?
→ Select 2 μm.
Need general RO pretreatment?
→ Select 5 μm.
Need coarse protection?
→ Select 10–20 μm.
Choose by Cartridge Length
40″
↓
HFU640 Series
60″
↓
HFU660 Series
80″
↓
HFU680 Series
Choose by Seal Material
EPDM
NBR
Silicone
FKM
Frequently Asked Questions (FAQ)
A1: MemKway MK-U-640PP050E is designed as a compatible replacement for HFU640UY050J applications, matching the key filtration rating, cartridge format and seal configuration. Final fit should be confirmed using the OEM part number and housing requirements.
A2: HFU640UY050J has a 5 μm filtration rating. The MemKway MK-U-640PP050E is designed to provide the corresponding 5 μm filtration performance for industrial water and process filtration applications.
A3: Yes. MK-U-640PP050E is designed for installation in compatible Pall Ultipleat High Flow filter housings. Before ordering, we recommend confirming the OEM part number, cartridge length, end connection, and seal material to ensure correct fit.
A4: Yes. HFU640UY050J replacement filter can be used in RO pretreatment and desalination systems where 5 μm particulate removal and EPDM seal compatibility are appropriate. It is typically used to reduce suspended solids and protect downstream membrane systems. Final suitability should always be confirmed based on feed-water chemistry, operating temperature and system requirements.
A5: HFU640UY050J and HFU640UY050H use the same 5 μm polypropylene filtration configuration and 40-inch cartridge format. The main difference is the seal material: HFU640UY050J uses EPDM, while HFU640UY050H uses FKM. HFU640UY050J is therefore more commonly selected for water-treatment applications, while HFU640UY050H is better suited to applications requiring higher chemical resistance.
A6: EPDM is widely used in water-treatment systems because it offers good compatibility with water, many aqueous solutions and common treatment chemicals. It also provides reliable sealing performance across a broad temperature range, making it a practical choice for RO pretreatment, desalination and general industrial water filtration applications.
HFU640UY050J Ordering Information
| Item | Specification |
|---|---|
| OEM Reference | HFU640UY050J |
| MemKway Model | MK-U-640PP050E |
| Rating | 5 μm Absolute |
| Length | 40″ |
| Standard Seal | EPDM |
| Optional Seals | Buna-N / Silicone / FKM |
| Packaging | Individual protective packaging |
| OEM / Private Label | Available |
| Sample | Available on request |
Send us HFU640UY050J or your current cartridge specification for a compatibility check and quotation.
