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HFPR Pleated Bag High Flow Filter Cartridges
6.75 inch pleated bag high flow cartridges in 40 and 60 inch lengths, 1 to 100 micron, 80 C, 3.5 bar. Dimensional equivalent to Pentair HFPR series.
What The HFPR Pleated Bag High Flow Does In Your Line
HFPR is a 6.75 inch large diameter pleated bag filter cartridge with a multi-layer polypropylene media pack, an inner core, and an injection moulded outer cage. It runs outside-in, so captured solids remain on the cartridge surface during change-out. One HFPR element replaces multiple smaller cartridges, which is why plants use it to reduce skid footprint and simplify maintenance. It is dimensionally equivalent to the Pentair HFPR series and fits directly into those housings without adapters.
Category: High Flow Filter Cartridges · Industries: Water Treatment And RO Systems Oil And Gas Operations Food And Beverage Plants
Why Buyers Pick This Element
- One 6.75 inch element replaces multiple smaller cartridges, reducing skid footprint and change-out labour
- Multi-layer pleated media structure increases effective filtration area and dirt holding capacity
- Outside-in flow path retains captured solids during cartridge removal
- Injection moulded outer cage maintains structural integrity under differential pressure
- Four O-ring compounds cover water, solvent, and hot service without changing the housing
- Dimensional equivalent to the installed Pentair HFPR series, so no housing or piping changes are needed
Buyers Who Specify This Cartridge
- Water treatment plant engineers replacing OEM high flow cartridges on an existing skid
- RO system integrators specifying prefiltration for new desalination or process water trains
- Beverage and food plant maintenance teams standardising on one cartridge across lines
- Filtration distributors who need an equivalent series to quote against OEM part numbers
What It Fixes On The Line
- Cartridge change-out on a large skid takes hours because there are too many small elements
- OEM high flow cartridges carry long lead times and high unit cost per replacement cycle
- Filter housings are full and there is no floor space to add another vessel for more flow
- Pleat packs collapse under differential pressure and shed captured solids back into the line
- Solids fall off the element during change-out and contaminate downstream filtrate
Construction Detail
- Multi-layer pleated construction that maximises effective filtration area per element
- Single piece full length media pack with no joints along the cartridge
- Inner core plus injection moulded outer cage for differential pressure strength
- Outside-in flow path for contaminant retention during change-out
- Round double O-ring and claw single O-ring adapters to match installed housings
- Absolute micron ratings from 1 to 100 micron across the same body
Materials Of Construction
- Polypropylene filtration media, thermally bonded without adhesives or surfactants
- Polypropylene inner core and injection moulded outer cage
- EPDM O-rings for general water and hot water service
- Viton O-rings for aggressive chemical and higher temperature duty
- Buna O-rings for hydrocarbon and general industrial water
- Silicone O-rings where a low extractable elastomer is preferred
HFPR Pleated Bag High Flow 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 | HFPR |
|---|---|
| Outer Diameter | 6.75 inch (172 mm) |
| Lengths | 40 inch, 60 inch |
| Micron Ratings | 1, 3, 5, 10, 20, 25, 50, 100 micron |
| Media | Polypropylene |
| Core and Cage | Polypropylene |
| O-ring Options | EPDM, Viton, Buna, Silicone |
| Adapter Options | R = round type double O-ring, C = claw type single O-ring |
| Max Temperature | 80 C |
| Max Differential Pressure | 3.5 bar at 21 C |
| Recommended Change-out | 2.4 bar differential |
| Flow Pattern | Outside-in |
| Order Code Example | HFPR-5-40-E-C |
Where It Is Installed
RO pretreatment ahead of membrane racks in a desalination or demineralisation train
Cooling water side stream filtration where suspended solids foul heat exchangers
Beverage and food process water polishing before bottling or blending
Bulk chemical transfer where particulate must be removed at high flow with low pressure drop
Seawater and brackish water intake filtration ahead of cartridge or membrane stages
How This Cartridge Is Built
Media Preparation
Media extrusion and pleating to a fixed pleat pitch
Pack Forming
Multi-layer pleat pack forming to full cartridge length in one piece
Hardware Assembly
Core insertion and injection moulded cage assembly
End Cap Bonding
Thermal end cap bonding without adhesive
Configuration
O-ring and adapter fitting to the ordered configuration
Inspection And Packing
Flush, drain and individual packing
Checks Before It Ships
- Dimensional check of outer diameter, length and adapter against the ordered code
- Pleat pack inspection for collapse, gaps and end cap bond integrity
- Differential pressure check against the 3.5 bar at 21 C rating
- O-ring compound and seating verification before packing
What We Can Change For You
- Length combinations from 40 to 60 inch to match the installed housing
- Micron rating selected from 1 to 100 micron for the duty
- O-ring compound chosen from EPDM, Viton, Buna or Silicone
- Round double O-ring or claw single O-ring adapter to match the existing seat
- Private label printing and carton marking for distributors
How It Compares With The Alternatives
| Standard bag filters | HFPR holds a tighter absolute rating and does not bypass at the seal, but a bag is cheaper for coarse duty |
|---|---|
| OEM branded high flow cartridges | Same dimensions and fit at a lower landed cost and shorter lead time, without the OEM warranty documentation |
| Pentair HFPR series | Dimensional equivalent with identical fit and performance, but manufactured in China with shorter lead time |
Installing And Running This Cartridge
- Confirm housing bore, seat type and cartridge length before ordering; the adapter code must match
- Start clean differential pressure logging from day one so change-out is data driven
- Change out at 2.4 bar differential rather than waiting for the 3.5 bar maximum
- Do not exceed 80 C; select Viton O-rings if the duty runs warm or carries solvents
- Flush the housing before fitting a new element so settled solids do not load it immediately
- Lift the element vertically and keep it upright so captured solids stay on the pleat pack
HFPR Pleated Bag High Flow Filter Cartridges FAQ
Will HFPR fit my existing Pentair HFPR housings?
What micron ratings can I get?
What is the maximum operating temperature and pressure?
Which O-ring should I choose?
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
High 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 GuideMatching Replacement Cartridges To Your Filter Housing
Find the right replacement cartridge by matching outer diameter, length, adapter, O-ring, and flow direction. We confirm fit based on your housing model and cur
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 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 HFPR Pleated Bag High Flow Filter Cartridges is the right match before you order.