Proven HFU640UY700J Replacement Filter Cartridge | Pall Compatible High Flow Filter
HFU640UY700J Replacement High Flow Filter Cartridge for High Contamination Industrial Filtration
The HFU640UY700J Replacement Filter Cartridge from MemKway is designed for industrial filtration systems requiring reliable removal of larger suspended particles, high dirt-loading capability, and extended operating intervals. Featuring a 70 micron polypropylene filtration media, this cartridge is optimized for coarse filtration applications where protecting downstream equipment is the primary goal.
Unlike finer filtration grades, the HFU640UY700J Replacement provides excellent contaminant holding capacity and allows industrial operators to reduce frequent cartridge replacement in high-solid water applications. As a dependable Pall compatible filter and Pall high flow cartridge equivalent, it offers a cost-effective alternative for users who require reliable high-flow filtration performance without relying solely on OEM cartridges.
1. Core Specifications
| Parameter | Value |
| Brand | MemKway |
| MemKway Model | MK-U-640PP700E |
| Equivalent Pall Model | HFU640UY700J |
| Compatibility | Pall Compatible Filter Cartridge for HFU Series High Flow Filter Housings |
| Filtration Rating | 70 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: Microfiber polypropylene
- Support/Drainage Mesh: Polypropylene
- End Caps & Handle: 10% Glass-Filled Polypropylene (GF PP)
- Outer Wrap: Polypropylene
- O-Ring Seal: EPDM
3. Operating Conditions
| Operating Parameter | 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) |
| Recommended Maximum Water Flow Rate | 1,325 lpm/350 gpm |
4. Pressure Drop on Flow Rate
| Flow Rate (L/min/gpm) | Pressure Drop (bar/psid) |
| 325 / 86 | 0.13 / 1.88 |
| 650 / 172 | 0.27 / 3.91 |
| 975 / 258 | 0.51 / 7.39 |
| 1300 / 343 | 0.78 / 11.31 |
Note: Data is measured at 23°C (73°F) with clean water, for reference only. Pressure drop increases as the filter accumulates contaminants.
5. Key Features of HFU640UY700J Replacement
- Direct replacement for Pall HFU640UY700J
- 70 micron coarse filtration capability
- Excellent dirt-holding capacity
- Designed for high suspended solids applications
- Large filtration surface area
- Low pressure drop operation
- Long service life
- Polypropylene construction
- Suitable for continuous industrial operation
- OEM and private label options available
6. Advantages of Choosing the HFU640UY700J Replacement
Selecting the HFU640UY700J Replacement provides measurable operational benefits:
Superior Protection
Removes larger particles before they damage critical equipment.
Longer Operating Life
High dirt-loading capacity reduces replacement frequency.
Lower Maintenance Cost
Fewer shutdowns and reduced labor requirements.
Stable High Flow Operation
Maintains consistent performance in demanding industrial environments.
7. Pall HFU Series Cross Reference
The table below helps buyers quickly identify the correct HFU640UY700J Replacement and other compatible Pall HFU series models.
| Pall Model | MemKway Replacement | Replacement Type |
|---|---|---|
| HFU640UY045J | MK-U-640PP045E | Direct Replacement |
| HFU640UY060J | MK-U-640PP060E | Pall Compatible |
| HFU640UY700J | MK-U-640PP700E | Equivalent Filter |
| HFU660UY100J | MK-U-660PP100E | OEM Replacement |
| HFU660UY200J | MK-U-660PP200E | Alternative Filter |
8. Typical Applications
Raw Water Filtration
The HFU640UY700J Replacement is ideal for raw water sources containing high levels of suspended solids.
Applications include:
- River water filtration
- Surface water treatment
- Industrial water intake
- Pre-treatment systems
RO Pretreatment Protection
Before reverse osmosis, removing larger particles helps reduce membrane fouling.
The cartridge works as a primary RO pretreatment filter cartridge to:
- Protect RO membranes
- Reduce maintenance frequency
- Improve system stability
Desalination Pretreatment
For seawater and brackish water systems, coarse filtration is essential before fine filtration stages.
Applications:
- SWRO plants
- BWRO systems
- Water reuse facilities
Mining Water Filtration
Mining operations often generate water streams with high suspended solids.
The HFU640UY700J Replacement is suitable for:
- Mine process water
- Recycled water filtration
- Equipment protection
- Tailings water treatment
Industrial Wastewater Treatment
Suitable for industrial wastewater applications requiring robust particle removal before advanced treatment.
Cooling Water Systems
Used to remove larger contaminants from cooling water loops and protect pumps, heat exchangers, and related equipment.
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 (HFU640UY700J) is for comparison and compatibility information only.
Why Choose Our HFU640UY700J Replacement Filter?
Designed for Extreme Dirt Loading Applications
The HFU640UY700J Replacement is specifically developed for applications with higher suspended solids and larger particulate contamination.
Its 70μm filtration rating makes it ideal for removing coarse contaminants before they reach sensitive downstream equipment.
Protects Downstream Equipment and Membrane Systems
In large-scale water treatment systems, early-stage filtration plays an important role in protecting expensive equipment.
By reducing larger particles at the first filtration stage, it improves overall system reliability.
High Flow Capacity for Large Industrial Systems
The large-format design provides a significantly larger filtration area compared with conventional cartridges.
The Pall Ultipleat High Flow design uses a large-diameter pleated structure to achieve high flow performance with fewer elements required.
Reliable Pall HFU Series Replacement Solution
The HFU640UY700J Replacement is manufactured to match the original Pall HFU640UY700J installation requirements.
This makes it a practical Pall high flow cartridge equivalent for industrial filtration users.
Professional OEM High Flow Filter Manufacturing
MemKway is an experienced high flow filter manufacturer specializing in replacement cartridges compatible with:
- Pall HFU Series
- Pentair Aqualine
- 3M High Flow
- Parker High Flow Filters
Frequently Asked Questions (FAQ)
A1: Yes. The HFU640UY700J Replacement is designed as a compatible replacement for Pall HFU640UY700J high flow filter applications.
A2: The main difference is filtration rating and application focus:
- HFU640UY400J replacement: 40μm filtration for heavy-duty pre-filtration.
- HFU640UY700J replacement: 70μm filtration for higher contaminant loading and coarse particle removal.
The HFU640UY700J replacement is more suitable when protecting downstream equipment from high solid loads is the priority.
Q3: Is HFU640UY700J replacement filter suitable for RO pretreatment?
A3: Yes. It can be used as a first-stage RO pretreatment filter cartridge to remove larger suspended particles before finer filtration stages.
A4: Yes. The cartridge is manufactured as a Pall high flow cartridge equivalent, offering compatible installation and reliable filtration performance.
A5: Yes. MemKway is an experienced OEM filter manufacturer offering private label production, customized solutions, and global supply support.
A6: MemKway provides reliable replacement cartridges, competitive pricing, stable production capacity, and technical support for distributors, EPC contractors, and industrial filtration users worldwide.
Looking for a Reliable HFU640UY700J Replacement?
Need a dependable HFU640UY700J Replacement for your industrial filtration system? Contact MemKway today for technical support, OEM manufacturing, pricing, or a free quotation. Our team will help you select the right HFU640UY700J Replacement for your application.

