Home About HongtekFiltration ProductsApplicationsSupportNewsContact Us
Home >> Filtration Products >> Liquid Filtration >> Melt Blown Filter Cartridges >> OPP Series PP Melt Blown Depth Filter Cartridges with Orange Surface
OPP Series PP Melt Blown Depth Filter Cartridges with Orange SurfaceOPP Series PP Melt Blown Depth Filter Cartridges with Orange SurfaceOPP Series PP Melt Blown Depth Filter Cartridges with Orange Surface

OPP Series PP Melt Blown Depth Filter Cartridges with Orange Surface


OPP Series PP Melt Blown Depth Filter Cartridges with Orange Surface are developed by Hongtek to provide consistent filtration in a lot of crucial liquid process applications. PP melt blown depth filters are manufactured using improved thermally bonded depth filtering technologies, with the surface treatment as wrinkled finish and looked like Orange peels that are sags and crests, so as to enlarge the surface filtration area, keeping larger particles holded to make better filtration efficiency. 

PP melt blown depth filters not only are harder than normal pp depth filters, but also have stronger ability to work under pressure and longer service life as well as consistent & high efficiency in particulate removing. PP melt blown cartridges with orange surface are the ideal filter materials for many industrial liquid filtration.

Filter MediaPolypropylene
Surface TreatmentOrange finished
Length5", 9.75", 9.8", 10", 20", 30", 40", 50" (According to customers requirements)
Inside Diameter28mm, 30mm (Special ID can be customized)
Outside Diameter2.5"(63mm), 2.55"(65mm)  (Special OD is accepted)
Filtration Rating1μm, 5μm, 10μm, 25μm,  50μm, 75μm, 100μm
Gasket/O-ringSilicone, EPDM, Viton, Buna
End CapDOE, 222/Flat(SOE), 222/Fin(SOE), 226/Flat(SOE), 226/Fin(SOE)


● Free of surfactants, binders and adhesives

● Harder structure provides stronger anti-pressure ability

● Longer service life with high quality, help users save some filtration material costs

● 100% FDA approved polypropylene materials of construction have wide chemical compatibility

● Orange surface treatment provides more larger filtration area and enhances dirt holding capacity

● Available in lengths up to 50 inches with frequently-used end caps: 222, 226, fin, and spring adapters etc.

OIL & GAS: Ammine filtration, completion fluids, deep well injection, acrylates.
INKS AND COATINGS:  industrial coatings, lacquers, solvents, water, paint, clear coat, inks, automotive coatings.
ELECTRONICS: Semiconductors, PCB industry,photoresists, DI water, chemicals, bulk chemical pre-filtration, copper recovery, pre-RO filtration.
METAL FINISHING: Stripping solutions,anodizing, hydraulic press oil, machine coolants, plating solutions and chemicals, aqueous parts washing.
CHEMICAL PROCESSING: Acrylates, alcohols, bleach, alkalis, acids, bulk chemical filtration, make-up water, sodium hypochlorite, titanium dioxide.
WATER TREATMENT: Cooling towers, cooling water, process water prefiltration, hot water heating systems, power plant water treatment, sea water desalination.


Operation Data for PP Melt Blown Depth Filter Cartridges

Maximum Operating Temperature60℃(140℉)
Max. Differential Pressure4.0 bar at 20℃ (58 psi at 68℉)
2.0 bar at 60℃(29 psi at 140℉)
1.0 bar at 60℃(14 psi at 140℉)
Liquid Flow DirectionOutside to inside
Recommend Change out Differential Pressure2.5 Bar

Tech Support

Installation of PP Melt Blown Depth Filter CartridgesInstallation_PP_Spun_Filters.jpg

● Hongtek brand pp melt blown depth filters installed in S.S filter housing

● The central of melt blown depth filters are still no polluted, so that keep liquid clear after filtration

● After used PP depth filters compare with before used can apparent know the good efficiency filtration

● No fiber drop out, high dirt holding, low pressure drop, high flow rate and high pressure resisting capability

● High quality and economical cost pp melt blown cartridges increase of longer service life and save much cost

Order Information
OPPIDODMicron RatingLengthEnd CapGasket/O-ring

OPP Series 

PP Melt Blown Depth Filter Cartridges 

with Orange Surface

A = 28mmM = 63mm1 = 1μm5 = 5"D = DOES = Silicone
5 = 5μm9.75 = 9.75"T = 222/Flat(SOE)
10 = 10μm9.8 = 9.8"O = 222/Fin(SOE)E = EPDM
25 = 25μm10 = 10"
50 =  50μm20 = 20"P = 226/Flat(SOE)V = Viton
B = 30mmF = 65mm75 = 75μm30 = 30"
100 = 100μm40 = 40"L = 226/Fin(SOE)U = Buna
50 = 50"

For Example:


OPP Series PP Melt Blown Depth Filter Cartridges - 28mm - 63mm - 5μm - 40" - Double Open End (DOE)

Special specifications PP Melt Blown Depth Filter Cartridges can be customized, such as special ID, OD, length etc.