740B40PP040B1 Replacement Filter Cartridge – 40 μm Viton 3M 740B Compatible
MemKway 740B40PP040B1 replacement filter cartridge is designed as a compatible alternative for selected 3M 740 Series filtration systems. It features 40 μm polypropylene filtration media, a 40-inch large-diameter configuration and Viton sealing for industrial liquid filtration.
Compared with the 740B40PP040D1 version, the main difference is the seal material: the B1 configuration uses fluorocarbon/Viton, while the D1 configuration uses nitrile. Final compatibility should be confirmed by OEM part number, dimensions, seal configuration and process fluid.
1. Core Specifications
| Parameter | Specification |
|---|---|
| Brand | MemKway |
| MemKway Model | MK-740B40PP040V |
| OEM Reference | 3M 740B40PP040B1 |
| Product ID | 7100063832 |
| 3M ID / Stock Number | 70020309798 |
| Filtration Rating | 40 μm Absolute |
| Filter Media | Polypropylene |
| Cartridge Length | 40 in (1016 mm) |
| Outer Diameter | 6.5 in (165 mm) |
| End Configuration | 226 |
| O-ring Material | Viton / Fluorocarbon |
| Flow Direction | Outside to Inside |
| Compatibility | Designed for selected 3M 740 Series filtration systems |
2. 740B40PP040B1 Cross Reference & Related 3M 740 Models
| 3M Model | MemKway Replacement | Rating | Seal | Length |
|---|---|---|---|---|
| 740B40PP010D1 | MK-740B40PP010N | 10 μm | Nitrile | 40 in |
| 740B40PP040B1 | MK-740B40PP040V | 40 μm | Viton | 40 in |
| 740B40PP040D1 | MK-740B40PP040N | 40 μm | Nitrile | 40 in |
| 740B40PP070D1 | MK-740B40PP070N | 70 μm | Nitrile | 40 in |
3. Materials of Construction
Component | Material |
Filter Media | Pleated Polypropylene (PP) |
Support Layer | Polypropylene |
End Caps | Glass Fiber Reinforced Polypropylene |
Inner/Outer Cage | High-Strength Polypropylene |
O-ring Material | Viton (FKM) Standard /Nitrile (NBR), Silicone, EPDM Optional |
4. Operating Conditions
Parameter | Maximum / Recommended Value |
Max. Operating Temperature | 71°C (160°F) |
Max. Forward Diff. Pressure | 3.4 bar @ 20°C (50 psid @ 68°F) |
Rec. Change-out Diff. Pressure | 2.4 bar @ 20°C (35 psid @ 68°F) |
Max. Design Flow Rate | Up to 18 m³/h (80 GPM) per element |
5. Clean Pressure Drop vs. Flow Rate (Water @ 20°C)
Flow Rate (GPM) | Flow Rate (m³/h ) | Pressure Drop (psid) | Pressure Drop (mbar) |
20 | 4.54 | 0.08 | 5.52 |
40 | 9.08 | 0.16 | 11.03 |
60 | 13.6 | 0.25 | 17.24 |
80 | 18.2 | 0.33 | 22.75 |
6. 740B40PP040B1 vs 740B40PP040D1 – What Is the Difference?
| Feature | 740B40PP040B1 | 740B40PP040D1 |
|---|---|---|
| Filtration Rating | 40 μm | 40 μm |
| Media | Polypropylene | Polypropylene |
| Length | 40 in | 40 in |
| Seal Material | Viton / Fluorocarbon | Nitrile |
| Typical Selection Basis | Applications requiring fluorocarbon seal compatibility | Applications requiring nitrile seal compatibility |
7. Key Features & Benefits
- Direct Interchangeability: 100% compatible with 3M High Flow filter housings.
- Manufactured to strict OEM size and performance standards
- Precise fit into original filter housing, no equipment modification required
- Consistent filtration efficiency and stable flow rate performance
- Premium filter media for long service life and reliable impurity removal
- Durable structure suitable for long-term continuous industrial operation
- Cost-effective alternative to original 3M filter cartridge
8. Typical Applications of 3M 740B40PP040B1 Replacement
- Oil & Gas: Produced water, amine loops, glycol filtration.
- Water Treatment: Pre-filtration for Reverse Osmosis (RO), Desalination, Municipal Water.
- Chemical/Petrochemical: Acids, bases, and process water purification.
- Industrial: Boiler condensate, cooling water, and parts washing.
9. Quality & Regulatory Compliance
- Certification: Manufactured in an ISO 9001:2015 certified facility.
10. Cross-Reference Disclaimer
3M, CUNO, and Solventum are registered trademarks of their respective owners. MemKway is an independent manufacturer of high-quality replacement filters. Any reference to original part numbers (740B40PP040B1, 70020126796, 7100063832) is for comparison and compatibility information only.
Frequently Asked Questions (FAQ)
Q1: What is the filtration rating of 740B40PP040B1 replacement filter?
The 740B40PP040B1 replacement filter configuration uses 40 μm polypropylene filtration media for coarse particulate removal in industrial liquid filtration.
Q2: What is the difference between 740B40PP040B1 and 740B40PP040D1?
Both use 40 μm polypropylene media in a 40-inch 740 Series format. The main difference is the seal material: B1 uses fluorocarbon/Viton, while D1 uses nitrile.
Q3: Is MemKway 740B40PP040B1 equivalent filter cartridge designed for 3M 740 Series systems?
Yes. It is designed as a compatible alternative for selected 3M 740 Series applications. Final fit should be confirmed using the complete OEM part number, dimensions and seal configuration.
Q4: What applications are suitable for 740B40PP040B1 compatible filter?
Typical applications include industrial water, process water, oil & gas, chemical processing and other compatible liquid-filtration duties requiring 40 μm filtration and fluorocarbon sealing.

