About us
Kefilbao Filter Technology (Suzhou) Co., Ltd. is a high-tech company specializing in bag filters and folding filter elements, integrating product research and development, production, and sales.

The bio-burden reduction polyethersulfone membrane cartridges are designed to produce product sterility.
The filters are constructed of single layer hydrophilic polyethersulfone membrane in all polypropylene construction.
It offers broad chemical compatibility, high flow rate at low pressure drop, and low extractables.
The polyethersulfone is particular suitable for the filtration of products that contains substances absorb to the membrane itself. The low protein binding characteristics of polyethersulfone makes it a good choice for the filtration of valuable protein solutions such as vaccines and biologicals.
Typical Application:
Cell Culture Media
Large Volume Parenterals (LVP's)
Pharmaceutical Bulk Chemical Solutions
Diagnostics
Blood and Serum Fractions
Purified Water
Beer, Wine and Spirit
Juice & Soft Drinks
Bottled Water
Maximum Operating Parameters
Differential Pressure
• Forward 50 psid (3.4 bard) at 20℃ (68°F)
• Reverse 40 psid (2.7 bard) at 20℃ (68°F)
Operating Temperature 82℃ (180°F) at 10 psid (0.69 barg) in water
Recommended ChangeoutPressure: 35psid (2.4barg)
Food Safety Compliance:
Materials of construction comply with FDA regulations for food and beverage contact use as detailed in the US Code of Federal Regulations, 21CFR.Materials used to produce filter media and hard ware are safe for use in contact with foodstuffs in accordance with EU Directives 10/2011.
Sanitization/Sterilization:
Filtered Hot Water 90℃ (194°F), 30 minutes, multiple cycles, max 3 psid forward flow.
Autoclave 121℃ (250°F), 30 min, multiple cycles
In-line Steam 135℃ (275°F), 30 min, multiple cycles
Toxity:
All components meet the specifications for biological safety per USP Class VI-121℃ for plastics.
Construction Materials
Filter Membrane: PES
Media Support: Polypropylene
End Caps: Polypropylene
Inner Core: Polypropylene
Outer Cage: Polypropylene
Sealing Method: Thermal Bonding
O-rings: Buna, Viton (or FKM), EP, Silicone, Encapsulated Silicone, Encapsulated Viton (or FKM)
Integrity
| Pore Size | Minimun Bubble Point |
| 0.04µm | 31.9PSI(2.2barg),IPA |
| 0.1µm | 24.7PSI(1.7barg),IPA |
| 0.2µm | 51PSI(3.5barg) |
| 0.45µm | 35PSI(2.4barg) |
| 0.65µm | 22PSI(1.5barg) |
| SPBRMS | Pore size | Length | Length | Seal | Connection Support |
| 0x4=0.04µm 001=0.1µm 002=0.2µm 004=0.45µm 006=0.65µm | 05=5" 10=10" 20=20" 30=30" 40=40" | 7=226/fin 6=226/flat 0=222/flat 5=222/fin F=DOE 2=224/fin 3=224/flat 4=222/fin(3luggs) 8=222/flat(3luggs) x=213inter o-ring | B=Buna-N E=EPDM S=Sione V=Vition | S=SS reinfocement |