Membrane Filters

Pleated membrane filters for precise removal of contaminants including vent filters, bacterial filters, as well as wine filters and beer filters

Read F.A.Q.

Citadel™

Pleated PTFE membrane cartridges with PFA structural components to provide excellent chemical and temperature resistance for aggressive chemical applications. Exhibits outstanding particle cleanliness and very low metal extractables.

ZTEC™ P

Double layer polyethersulfone membrane cartridges fully validated for complete bacterial retention at 0.2 micron to yield product sterility by ASTM 838-05 for the most critical healthcare applications.

ZTEC B

Membrane cartridge  filters constructed of hydrophilic, asymmetric polyethersulfone membrane and polypropylene components. ZTEC-B filters have been validated for the removal of microorganisms.

ZTEC E

ZTEC E microelectronics grade cartridges represent Graver’s latest development in ultrapure water  filtration technology. The cartridges exhibit rapid rinse-up to 18 MΏ-cm resistivity and single digit ppb levels of TOC.

ZTEC WB

Utilizes a special polyethersulfone membrane to provide consistent removal of spoilage organisms. The product offers excellent retention efficiency and extended onstream life, making it an ideal filter for the clarification of beer, wine, and bottled water.

ZTEC G

General grade pleated filter element is constructed of absolute rated, hydrophilic, asymmetric polyethersulfone membrane with extended surface area to allow for a high system flow rate.

TefTEC™

Naturally hydrophobic expanded PTFE membrane filters designed for vent and gas applications. With over 8.5 square feet of filtration area, TefTEC filters provide outstanding flow rates. TefTEC filters are 100% flushed and integrity tested in a cleanroom environment.

TefTEC P

Naturally hydrophobic e-PTFE Membrane cartridges validated for complete bacterial retention to yield product sterility in biopharmaceutical final filtration applications. The sterilizing grade PTFE membrane cartridges are well suited for compressed air applications and fermentation feed air and tank vent applications where absolute microbial retention is critical.

TefTEC V

The economical PTFE membrane cartridge filter provides superior hydrophobicity as compared to polypropylene filters commonly used in utility and tank vent applications. TefTEC V has been demonstrated to produce sterile air utilizing a bacterial aerosol challenge.

WaterTEC™

Constructed of absolute rated, hydrophilic, asymmetric polyethersulfone membrane and polypropylene components. The filter is designed for overall filtration economy and provides excellent flow rates and throughputs.


support literature
ACS-004 - Tank Vent for Citrus Juice
ACS-008 Citric Acid Plant Condensate Water
Backwashing of Microfiltration Cartridge Elements
Graver Cartridge Regeneration Procedures for Wine & Beer Applications
Membrane Role in Microbial Retention

Frequently asked questions

How to remove heavy metals from water and wastewater?
Many MetSorb® adsorbents will remove heavy metals from water and wastewater. Please view our product pages for more information.
Are heavy metals in water? Do they pose a threat to human health?
The USEPA issued and regularly reviews/updates the National Primary Drinking Water Regulations (NPDWR).
How can I remove lead from water?
Many MetSorb® adsorbents will remove lead and other heavy metals from water. Please view our product pages for more information.
How much uranium is safe in drinking water?
The USEPA has issued and regularly reviews/updates the National Primary Drinking Water Regulations (NPDWR).
Why do MetSorb® adsorbents sometimes have a bad smell and how do we get rid of this odor?
MetSorb® adsorbents are made from metal oxides and rarely have any noticeable smell. They can sometimes concentrate bacteria (specifically sulfur reducing) that may be present in the drinking water well source. While this type of bacteria is naturally found in many well sources and are considered harmless, the resulting “rotten egg” smell can be unpleasant. In order to remove the bacteria from the MetSorb® media bed, we recommend performing a 25-50 ppm chlorine shock for 12-24 hours. The system should then be rinsed with fresh water until no residual chlorine odor is noted. If bacteria count in the well water is high, this chlorine shock of the MetSorb® media may be required 2 or 3 times per year.
How can uranium be removed from well water?
One way uranium can be removed is through adsorption. MetSorb® HMRG has a selective affinity for uranium.

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