Hydrophilic Water Treatment (Sterile) Pill Filter (PES)

Overview

Hydrophilic PES (polyethersulfone) pill filters are single-use, enclosed membrane filtration devices designed to produce particle-free, microbially controlled sterile water at the point of use or within high-purity water workflows. PES membranes are widely used for sterile filtration because they offer high flow/throughput, low non-specific binding, and dependable performance in aqueous streams.

The pill/capsule format (often paired with all-polypropylene construction) supports quick installation, reduced handling, and lower contamination risk versus open filter setups. Many PES capsule devices are manufactured without adhesives/binders and are rinsed with high-purity water to help reduce extractables.

For sterilizing-grade sterile water, PES filters are commonly specified at 0.2/0.22 µm, with performance typically demonstrated via ASTM F838 bacterial retention (a key industry method used to characterize bacterial retention for sterilizing filters).
PES capsule filters are also explicitly marketed for high-quality water sterilization and point-of-use sterile water applications.

Performance is on par with Cobetter® and Pall® pill filters, offering comparable quality at a more economical cost.

⭐Key Attributes

• ⚙️ Processing Type: Filtration
• 💧 Productivity: 1000 L/Hour
• 💨 80psi/5.5 Bar
• 🔩 Core Component: Hydrophilic PES Membrane
  
• ⚖️ Weight: 0.7 kg
• 🧬 Low Protein Adsorption — Ideal for biotech, laboratory, and pharmaceutical use.
  
• 🧴 Excellent Compatibility — Suitable for corrosive liquids and organic compounds.
• 🔬 Absolute Filtration Rating
  Ensures precise particle retention and consistent filtration quality.
• Strong Chemical & Thermal Stability — PES exhibits excellent temperature tolerance and resistance to many common laboratory chemicals.
• ⚗️ Exceptional Chemical Compatibility
  Suitable for a wide range of aqueous solutions, including buffers, media, and biological fluids.
  
• 💧 Hydrophilic PES Membrane — Rapid wetting without pre-wetting and inherently low protein and drug binding for minimal sample loss.
• 🛡️ High-Purity Construction
  Hydrophilic membrane ensures fast wetting and stable flow rates. Engineered for sterile filtration with consistent pore size distribution and high microbial retention. Suitable for critical applications requiring low extractables and consistent integrity.
• 🚀 High Flow & Low Pressure Drop — Asymmetric pore structure maximizes membrane surface area for efficient throughput and reduced differential pressure.
  
• 💲 Economical Choice — Reliable performance at a lower cost than premium-name competitors. (purchase 300 get +50 for free-Promo code: Free50)

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🏗️ Construction & Dimensions

• 🪶 Material: Polypropylene housing
• 🧱 Internal Support: PP or PP + stainless liner
• 🧱 Out Cage: PP
• 📏 Length Options: 2.5"
• 🫧 Pore Size Options: 0.10 μm, 0.22μm, 0.45 μm, 1 μm, 3 μm, 5 μm, 10 μm
• 📊 Effective Filtration Area: ≥ 0.60 m²

🌡️ Temperature & Pressure Ratings

• Normal Operating Temperature: ≤55°C
• Max Operating Temperature: 80°C (ΔP ≤ 0.10 MPa)
• Max Differential Pressure:
  ➤ Forward: 0.42 MPa @ 25°C
  ➤ Reverse: 0.21 MPa @ 25°C

🌟 Features & Benefits

• 🛡️ Ultra-Low Extractables
  High-quality core and cage materials, extremely low dissolved matter, maintaining product purity and stability.
• 🎛️ Flexible Filtration Options
  Available in single, double, and multi-layer membrane configurations, giving users more choices for performance, flow rate, and retention needs.
• 🔄 Universal Compatibility
  Multiple end-cap types allow seamless integration with a wide range of filter housings, making installation fast and versatile.
• 🔥 No Adhesive Contamination
  Thermally bonded construction eliminates the risk of adhesive pollutants, ensuring safe and clean filtration for sensitive applications.
  
• 🧼 Cleanroom Production Quality
  Manufactured in an ISO Class 8 cleanroom and rinsed with high-purity water, guaranteeing low particle shedding and high filtration integrity.
•  💰 Cost-effective; available in bulk packaging (purchase 300 get +50 for free-Promo code: Free50)
•  ✔️ 100% integrity tested during manufacturing
•  🔢 Individually serialized for full traceability

📋 Applications

💧 Point-of-Use Sterile Water Filtration

0.22 µm (standard)
Used at the point of dispense to provide bacterially controlled sterile water for laboratories, cleanrooms, and critical processes.

🧪 Laboratory & Life-Science Water Systems

0.45 µm (pre-filtration) → 0.22 µm (final sterile filtration)
Removes particulates upstream and provides sterile water for analytical testing, media preparation, and reagent dilution.

🏭 Process & Utility Sterile Water

1.0 µm – 0.45 µm (clarification) → 0.22 µm (final)
Applied in industrial and pharmaceutical utility water systems to control particulates and reduce microbial load prior to use.

🚿 Equipment Rinse & Final Rinse Water

0.22 µm
Used for final rinse steps where microbial control is required to prevent contamination of equipment or product contact surfaces.

🧬 Bioprocess & Pharmaceutical Support Water

0.45 µm (pre-filter) → 0.22 µm (sterilizing-grade)
Supports water used in formulation, buffer preparation, and upstream/downstream bioprocess operations.

🔬 Enhanced Microbial Control Applications

0.10 µm 
Used where tighter microbial or mycoplasma control targets are required, depending on process risk assessment.

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Filtration Stages & Recommended Micron Ratings (Sterile Water)

🧩 Pre-Filtration (Particulate Protection) — 10 µm → 5 µm
Reduces sediment and protects the sterile membrane from premature plugging.

🧪 Clarification / Fine Particulate Control — 3 µm → 1 µm → 0.45 µm
Improves clarity and lowers particulate load before the final sterilizing step.

🛡️ Final Sterile Filtration (Sterilizing-Grade) — 0.2/0.22 µm (standard)
Primary choice for sterile water production where bacterial retention is required (commonly aligned with ASTM F838 validation expectations).

🔬 Enhanced Control (when specified) — 0.10 µm
Used in some processes when tighter microbial control targets are required (application-dependent).

Typical Water Treatment (Sterile Water) Filtration Train

10 µm → 5 µm → 1 µm → 0.45 µm → 0.22 µm → 0.10 µm

⭐ Why Hydrophilic PES Membranes

• 💧 Naturally hydrophilic – no pre-wetting required
• 🧬 Low protein binding preserves valuable biomolecules
• 🚀 High flow rates with uniform pore structure
• 🛡️ Excellent chemical compatibility and durability
• 🧪 Ideal for pharmaceutical, biotech, and sterile water applications

❓ FAQ

 🔎 What are these capsule filters used for?

• The Hydrophilic PES Filter is designed for applications that require low protein adsorption, rapid wetting, and consistent flow performance. well-suited for biological, pharmaceutical, and chemical processes where maintaining sample integrity is essential. this cartridge effectively handles acidic, alkaline, and mildly corrosive solutions. Offering strong chemical resistance and a reliable filtration option for corrosive liquids, organic compounds, and a wide range of laboratory or production filtration needs.

 📌 Which micron size should I choose?

• 10 µm – Standard filtration
• 5 µm – Fine filtration
• 3 µm – Coarse pre-filtration
• 1 µm – Pre-filtration / particle reduction
• 0.45 µm – Fine particulate filtration
• 0.22 µm – Sterile-grade filtration
• 0.10 µm – Ultra-fine sterile filtration

 🧰 Which connection type should I select?

• CPC – Quick-connect
• Swagelok – Precision compression fittings
• Hose Barb – Flexible tubing
• 1/4" NPT

 ♻️ Are these reusable?

• No. These are single-use filters.

 🔥 Can they handle hot liquids or gases?

• Yes, up to 60°C. / 140F°

💎 Why Choose Filter Forge Supply

• 🏭 Built and tested in the United States
• 📄 ISO Certified manufacturing process
• 🚚 Fast delivery