DPSHPC Sterilizing-Grade Liquid Filter
The DPSHPC series filter cartridge is composed of a unique PES filter membrane developed and improved by Cobetter. It can remove small particles, bacteria and endotoxins in the solution. The endotoxin removal efficiency in the physiological saline solution is more than 99%.
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Description
Features
- Modified PES
- Fast flow rate and high throughput
- pH1-14 tolerant
- Can be pre-disinfected with NaOH
- Good sterilization performance
Applications
- Sterile and depyrogenation filtration for LVP and SVP
- Sterile and depyrogenation filtration for antibiotic solution
- Sterile and depyrogenation filtration for physiological saline and other solvents
Quality
- 100% Integrity testing in manufacturing
- Each filter is fully traceable with unique serial number
- Manufactured in a facility which adheres to ISO 9001:2015 Practices
Flow Rate Characteristics

Specifications
Materials of Construction
Membrane | Hydrophilic polyethersulfone (PES) |
Support | Polypropylene (PP) |
Core/Cage/End Caps | Polypropylene (PP) |
End Cap Inserts | Polybutylene terephthalate (PBT) |
Seal Material | Silicone / EPDM / Viton FEP/ PFA encapsulated O-rings |
Operating Conditions
Max. Operating Temperature |
80°C |
Max.Operating Pressure |
0.69 MPa@25°C 0.40 MPa@60°C 0.24 MPa@80°C |
Max. Differential Pressure (Forward) |
0.69 MPa@25°C 0.40 MPa@60°C 0.24 MPa@80°C |
Max. Differential Pressure (Reverse) |
0.30 MPa@25°C 0.10 MPa@80°C |
Integrity Test Standards @10inch,20°C
Membrane Pore Size | Bubble Point | Diffusion Flow (Air) |
0.22+0.22μm | ≥ 0.32 MPa (water), Air test | ≤ 28 ml/min @ 0.275 MPa (water) |
Bacterial Retention
Model | Content |
DPSHPC 0.22μm | Bacterial quantitative retention of 10⁷ cfu/cm² Brevundimonas diminuta (ATCC 19146) accordingto ASTM F838 methodology. |
Sterilization
In-line steam sterilization | Up to 50 cycles (135 °C for 30 min and differential pressure < 30 kPa per cycle) |
Autoclave | Up to 50 cycles (130 °C for 30 min per cycle) |
Regulatory Compliance
- Autoclaved filter effluent meets the USP<788> requirement of particulate matter in large volume injection.
- Component materials meet the criteria for a "Non-fiber-releasing filter" as defined in 21 CFR 210.3(b)(6).
- Aqueous extraction from a cartridge contains less than 0.25EU/ml as determined by Limulus Amebocyte Lysate (LAL), meeting requirements of USP<85>.
- Meet the requirement of USP <87> In Vitro Cytotoxicity Test.
- Component materials meet the requirements of the current USP<88> for plastic class VI-121°C.
- All component materials meet the FDA Indirect Food Additive requirements cited in 21 CFR 177-182.
- Based on the current information from our suppliers, all component materials used in the manufacture of this product are animal-free.
End Cap

Ordering Information
Outer Diameter | Type | Membrane Pore Size | End Cap | Nominal Length | Seal Material | Industry |
69mm | DPSHPC | 2222 0.22+0.22µm | DOE Double Open End | 05 5 inch | S Silicone | P |
HTF 222/Fin | 10 10 inch | E EPDM | ||||
HSF 226/Fin | 20 20 inch | V Viton | ||||
HTCG 222/Flat | 30 30 inch | P FEP/PFA encapsulated O-rings | ||||
HSCG 226/Flat | 40 40 inch |
* Example:DPSHPC2222DOE05SP (DPSHSL,0.22+0.22µm,Double open end,5 inch,Silicone,Pharmaceutical)