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PP Melt Blown Depth Filter Cartridges
2.5 inch and 4.5 inch polypropylene melt blown cartridges in 9.75 to 70 inch lengths, 0.5 to 100 micron, 140 ℉ (60 ℃). Dimensional equivalent to commo
What The PP Melt Blown Depth Does In Your Line
PP Melt Blown Depth Filter Cartridges are made from polypropylene fibers spun into a three dimensional network that captures particles throughout the media depth. They are designed for continuous operation in water, chemical and industrial fluid lines. The cartridges are dimensionally equivalent to common OEM series and fit standard housings without adapters. They are available in 2.5 inch and 4.5 inch outer diameters, with lengths from 9.75 to 70 inches and micron ratings from 0.5 to 100 micron.
Category: Depth Filter Cartridges · Industries: Water Treatment And RO Systems Oil And Gas Operations
Why Buyers Pick This Element
- Three dimensional fiber network captures particles throughout the media depth, not just on the surface
- High tolerance to differential pressure without fiber matrix collapse or contaminant unloading
- Consistent filtration performance over the service life due to stable fiber structure
- No additives, wetting agents, binders or silicone in the media for high purity
- Dimensional equivalent to common OEM series so no housing modification is needed
- Available in multiple lengths and micron ratings to match existing system requirements
Buyers Who Specify This Cartridge
- Plant engineers maintaining RO pretreatment or process water systems with existing melt blown housings
- Procurement teams replacing OEM melt blown cartridges with lower cost equivalents
- Filtration distributors specifying drop-in replacements for common OEM part numbers
- System integrators designing new skids with standard cartridge dimensions and fit
What It Fixes On The Line
- OEM melt blown cartridges have long lead times and high unit cost per replacement cycle
- Filter media collapses under differential pressure and sheds captured particles back into the line
- Media contains additives or binders that can leach into sensitive fluids like process water or chemicals
- Cartridge change-out is frequent due to low dirt holding capacity or poor media stability
- Existing housings are full and no space is available for additional filtration elements
Construction Detail
- Three dimensional polypropylene melt blown fiber network for depth filtration
- No adhesives, binders, wetting agents or silicone used in media construction
- Stable fiber matrix maintains integrity under forward and reverse pressure
- Forward pressure rating of 35 psid, reverse pressure rating of 25 psid
- Change-out recommended at 20 psid differential pressure
- Maximum operating temperature of 140 ℉ (60 ℃)
- Available in 2.5 inch and 4.5 inch outer diameters
- Lengths from 9.75 to 70 inches, including 5, 10, 20, 30, 40, 50, 60, and 70 inch options
- Micron ratings from 0.5 to 100 micron, including 0.5, 1, 3, 5, 10, 20, 50, and 100 micron
Materials Of Construction
- Polypropylene melt blown fibers spun into a three dimensional network
- No additives, wetting agents, binders or silicone used in media construction
- Polypropylene inner core and end caps for structural support
- O-rings and adapters not specified in FACTS; confirm with housing model
PP Melt Blown Depth Filter Cartridges Specifications
Every figure below comes from the manufacturer data for this series. Anything not listed here is not published and we will confirm it against your duty before you order.
| Series | PP Melt Blown Depth Filter Cartridges |
|---|---|
| Outer Diameter | 2.5 inch, 4.5 inch |
| Lengths | 9.75, 10, 20, 30, 40, 50, 60, 70 inch |
| Micron Ratings | 0.5, 1, 3, 5, 10, 20, 50, 100 micron |
| Media | Polypropylene melt blown |
| Core and Cage | Polypropylene |
| O-ring Options | Not specified |
| Adapter Options | Not specified |
| Max Temperature | 140 ℉ (60 ℃) |
| Max Differential Pressure | 35 psid forward, 25 psid reverse |
| Recommended Change-out | 20 psid differential |
| Flow Pattern | Forward |
| Order Code Example | Not specified |
PP Melt Blown Depth Filter Cartridges In Detail
Where It Is Installed
RO pretreatment in water treatment plants where particulate must be removed before membrane stages
Chemical process lines requiring consistent particle removal without media shedding
Food and beverage applications where extractables must be avoided and filtration is continuous
Industrial fluid systems where high differential pressure is expected and filter integrity is critical
Cooling water systems where suspended solids can foul heat exchangers and reduce efficiency
How This Cartridge Is Built
Media Preparation
Polypropylene fibers extruded and spun into a melt blown network
Pack Forming
Fiber mat formed into a cylindrical shape with consistent thickness
Hardware Assembly
Inner core inserted and end caps bonded thermally
End Cap Bonding
O-ring and adapter assembly not specified; depends on housing fit
Configuration
Final inspection for media integrity and dimensional accuracy
Inspection And Packing
Individual packing and labeling for shipment
Checks Before It Ships
- Dimensional check of outer diameter, length, and inside diameter against ordered code
- Visual inspection of media for voids, gaps, or core misalignment
- Pressure test at 35 psid forward and 25 psid reverse to verify integrity
- O-ring and adapter fit verification if specified in order
- Final check of end cap bond and media stability
What We Can Change For You
- Lengths available from 9.75 to 70 inches, including standard sizes like 5, 10, 20, 30, 40, 50, 60, 70 inch
- Micron ratings selectable from 0.5 to 100 micron, including 0.5, 1, 3, 5, 10, 20, 50, 100 micron
- Outer diameter options: 2.5 inch or 4.5 inch
- Inner diameter options: 25mm, 28mm, 30mm
- Private label printing and carton marking available upon request
How It Compares With The Alternatives
| Membrane pleated cartridges | PP melt blown offers higher dirt holding capacity and better tolerance to high differential pressure, but does not provide absolute rating at the micron level |
|---|---|
| String wound depth cartridges | Melt blown has a more uniform fiber structure and consistent filtration, while string wound may have gaps or uneven density |
| OEM branded melt blown cartridges | Same dimensions and fit at a lower landed cost and shorter lead time, without OEM warranty documentation |
| Activated carbon cartridges | Melt blown is for particulate removal only; carbon cartridges are for chemical and odor removal, so they serve different purposes |
Installing And Running This Cartridge
- Confirm housing bore, inside diameter, and cartridge length before ordering
- Verify the O-ring compound and adapter type match the existing housing seat
- Start logging differential pressure from day one to schedule change-out based on data
- Change out at 20 psid differential to avoid running the cartridge at its pressure limit
- Do not exceed 140 ℉ (60 ℃); use a different cartridge if the duty runs hotter
- Flush the housing before installing a new element to prevent immediate loading with settled solids
PP Melt Blown Depth Filter Cartridges FAQ
Will this fit my existing melt blown housing?
What micron ratings are available?
What is the maximum operating temperature and pressure?
Can I use this in a reverse flow system?
How do I write the order code?
Can I get a sample before placing a production order?
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View SpecificationsReading That Helps You Specify
Melt Blown Compared With String Wound Depth Cartridges
Compare graded density, media migration, dirt holding capacity, and suitable duties for melt blown and string wound depth cartridges. Both handle 80℃ and 100μm
Read GuideHow To Choose A Micron Rating For Cartridge Filters
Absolute versus nominal ratings, choosing from the stage you protect, and why rating drives change-out cost more than unit price.
Read GuideHigh Flow Cartridges Compared With Standard 2.5 Inch Cartridges
Compare element count, footprint, change-out labour, and cost per cycle between 6 inch and 6.5 inch high flow cartridges and traditional 2.5 inch cartridges.
Read GuideSend Us Your Housing Model And Duty
Send the housing model and the code on the element you use today and we will confirm whether PP Melt Blown Depth Filter Cartridges is the right match before you order.