Products Description
Melt blown water filter is a depth filter cartridge typically made from polypropylene fibers. These fibers are thermally bonded to form a gradient density structure without a central core, featuring a fixed pore structure that effectively removes solid contaminants of various sizes from liquids.
Technical parameters
| Parameter | Specification |
| Media | 100% polypropylene |
| Nominal Micron Rating | 1, 5, 10, 20, 50, 100 µm (custom grades on request) |
| Standard Length | 10 in, 20 in, 30 in, 40 in |
| Outer Diameter (Typical) | 2.5 in, 4.5 in |
| Maximum Operating Temperature | 60°C (140°F) |
| Recommended Change-out Differential Pressure | 20 psid (1.4 bar) |
| pH Range Compatibility | 1-14 |
| End fittings | DOE (open), SOE, 222/226 o-ring styles, flat/fin end caps; adaptors available |
| Gasket Options | EPDM, silicone, viton, etc |
| Construction | Polypropylene media, core, and end caps; no metal wetted parts |
Key Features
✅ True deep filtration with gradient density optimization
✅ High contaminant holding capacity
✅ Broad chemical compatibility
✅ Low maintenance frequency and operating costs
✅ Materials certified to NSF/FDA standards
✅ Standard sizes and custom options available
Applications
- Drinking water and municipal treatment
- Industrial process water
- Reverse osmosis (RO) pre-filter
- Food & beverage
- Plating, coatings
- Cooling tower water filtration
- Chemicals
- Microelectronics
- Pharmaceutics
Performance
Flow vs. Pressure Drop of 10 inches Melt Blown Water Filter
| 2.5" OD Filter Cartridges | 4.5" OD Filter Cartridges |
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Ordering information
Quality Assurance
- Each batch undergoes rigorous multipass testing
- Compliance with NSF/ANSI Standard 42 for material safety
- Bubble point testing for pore size verification
- Flow rate and pressure drop validation
- Performance certification with every shipment
FAQ
Q: What is the difference between melt blown and string wound filter cartridges?
A: Melt-blown filter cartridges provide depth filtration with gradient density and a fixed pore structure, effectively capturing particles of varying sizes. Wound filter cartridges primarily capture contaminants through the gaps between wound fibers, featuring larger pore sizes that render them unsuitable for capturing fine particulate matter.
Q: How do I select melt blown filter size based on my flow rate?
A: Please provide the target flow rate, allowable pressure drop, and required micron rating for each housing. We will recommend filter cartridge length/quantity to meet hydraulic and service life objectives.
Q: Is backwashing recommended?
A: Backwashing is generally ineffective for meltblown depth cartridges and redistributes trapped solids. They are designed as disposable cartridges.
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