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SANIpore® DS Capsule Filter

Double-layer PES Membrane

SANIpore® DS Filter Cartridges have been established as a new generation of PES membranes in steel-grade filtration. The unique double-layer PES membrane design not only provides excellent microbial retention but is also cost-effective. SANIpore® DS filter cartridges are frequently sterilized with steam or hot water to extend service life and reduce replacement costs.

Capsule filters are a family of full-size capsule filters with a Staubli connection at the vent, which enables online integrity tests. The PES membrane capsule utilizes a single layer of hydrophilic polyethersulfone membrane. It offers broad chemical compatibility, high flow rate and low extractable

Polyethersulfone is particularly suited for the filtration of products that contain substances that adsorb to the media. The lower binding characteristics of polyethersulfone make it a good choice for the filtration of valuable protein solutions such as vaccines and biologicals.

SANIpore® DS Capsule Filter

Features and Quality

  • Broad chemical compatibility
  • High flow rate
  • Low extractable
Features and Quality

Construction of Materials

Filter Membrane Polyethersulfone
Media Support Polypropylene
End Caps Polypropylene
Inner Core Polypropylene
Outer Cage Polypropylene
Sealing Method Thermal Bonding

Cartridge Integrity Test Specifications

Pore size Min. Bubble Point Diffusive Flow
0.1um 2.0barg@22℃/IPA ≤28ml/1.3barg
0.2um 3.8barg@22℃ ≤28ml/2.8barg
0.45um 2.7barg@22℃ ≤25ml/1.7barg

Broad chemical compatibilityHigh flow rateLow extractable

Features and Quality

Features and Quality
  • Broad chemical compatibility
  • High flow rate
  • Low extractable

Specification and Data

Construction of Materials

Filter Membrane Polyethersulfone
Media Support Polypropylene
End Caps Polypropylene
Inner Core Polypropylene
Outer Cage Polypropylene
Sealing Method Thermal Bonding

Cartridge Integrity Test Specifications

Pore size Min. Bubble Point Diffusive Flow
0.1um 2.0barg@22℃/IPA ≤28ml/1.3barg
0.2um 3.8barg@22℃ ≤28ml/2.8barg
0.45um 2.7barg@22℃ ≤25ml/1.7barg

Ordering Information

Broad chemical compatibilityHigh flow rateLow extractable

Common questions about Sanitek

Common Questions about SanitekWhat is Stery PPS filter material?

Stery Asymmetrical PES Filter Cartridges are 100% integrity tested, it is constructed of double-layer hydrophilic asymmetric polyethersulfone membrane. It offers broad chemical compatibility, high flow rates at low-pressure drops, and low extractables.

Common Questions about SanitekWhat are Stery PPS filters used for?

Polyethersulfone is particularly suited for the filtration of products that contain substances that adsorb to the media. The lower binding characteristics of polyethersulfone make it a good choice for the filtration of valuable protein solutions such as vaccines and biologicals.

Sanitek Stery PPS capsule filter with PES membrane is suitable for applications such as Cell Culture Media, Volume Parenterals (LVP’s), Pharmaceutical Bulk Chemical Solutions, Diagnostics, Blood and Serum Fractions, Purified Water, Beer, Wine and Spirits, Juice & Soft Drinks, and Bottled Water.

Common Questions about SanitekWhat is the difference between PES and PVDF filter membranes?

The main difference lies in their chemical compatibility and filtration properties. PES (polyethersulfone) membranes offer excellent compatibility with a broad range of solvents, acids, and bases. They are known for their low protein binding and high flow rates.

PVDF (polyvinylidene fluoride) membranes, on the other hand, have superior chemical resistance, making them suitable for aggressive solvents and strong acids. PVDF membranes also provide high protein binding capacity, making them ideal for protein-based applications. The choice between PES and PVDF depends on the specific requirements of the filtration process, including chemical compatibility and protein retention needs.

Common Questions about SanitekHow do you guarantee the quality of your filters?

All materials meet the specifications for biological safety per USP Class V1-121 C for plastics. Materials of construction comply with FDA regulations for food and beverage contact use as detailed in the US Code of Federal Regulations, 21 CFR. Materials used to produce filter media and hardware are safe for use in contact with foodstuffs in accordance with EU Directives 10/2011.

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