STRATUM A – ABSOLUTE RATED

Stratum™ A Series Absolute Rated Melt Blown Filter Cartridges

•Absolute retention ratings from 0.5 to 70 microns

•Multi-zone melt blown depth filter with a graded pore structure for maximum dirt holding capacity •Thermally bonded fibers for high void volume and long on-stream life •Lot traceable filters come with certificate of conformance •100% polypropylene FDA listed materials of construction •All components meet USP Class VI criteria and are safe for use in pharmaceutical applications •Molded center core for higher temperature and pressure capability NSF logoCertified to NSF/ANSI 61 for materials requirements only – Component * Typical Applications »Water »Pharmaceuticals »Food and beverages »Microelectronics »Cosmetics »Polymers »Coatings * NSF 61 applies to NN, P6 and PX styles only

•Multi-zone melt blown depth filter with a graded pore structure for maximum dirt holding capacity •Thermally bonded fibers for high void volume and long on-stream life •Lot traceable filters come with certificate of conformance •100% polypropylene FDA listed materials of construction •All components meet USP Class VI criteria and are safe for use in pharmaceutical applications •Molded center core for higher temperature and pressure capability NSF logoCertified to NSF/ANSI 61 for materials requirements only – Component * Typical Applications »Water »Pharmaceuticals »Food and beverages »Microelectronics »Cosmetics »Polymers »Coatings * NSF 61 applies to NN, P6 and PX styles only

•Multi-zone melt blown depth filter with a graded pore structure for maximum dirt holding capacity •Thermally bonded fibers for high void volume and long on-stream life •Lot traceable filters come with certificate of conformance •100% polypropylene FDA listed materials of construction •All components meet USP Class VI criteria and are safe for use in pharmaceutical applications •Molded center core for higher temperature and pressure capability NSF logoCertified to NSF/ANSI 61 for materials requirements only – Component * Typical Applications »Water »Pharmaceuticals »Food and beverages »Microelectronics »Cosmetics »Polymers »Coatings * NSF 61 applies to NN, P6 and PX styles only

Crystal MBF Series Economical Melt Blown Depth Filter Cartridges

Melt Blown Filters

An economical, disposable, filter element that can be used in a wide range of applications. The Crystal MBF depth filter is constructed of 100% polypropylene media for chemical compatibility with a variety of process fluids. The unique Crystal Core prevents collapse even at elevated temperatures.

Crystal MBF Series Economical Melt Blown Depth Filter Cartridges

  • NSF 61 Certified
  • Nominal Micron Ratings – 1, 3, 5, 10, 20, 30, 50, 75
  • Multi-zone construction for a true graded pore structure
  • 100% pure polypropylene – FDA listed, USP Class VI compliant
  • Most popular end styles available
  • Continuous lengths up to 50″
  • Similar efficiencies to competitive products for ease of replacement
  • Bulk bag option for high volume users

 Typical Applications

  • Food & Beverages
  • Aqueous solutions
  • Wastewat
  • RO prefiltration
  • Chemicals
Graver Technologies melt blown filter cartridge

COAX™ Melt Blown filter cartridge

Two Stage Depth filter cartridge

The COAX Depth Filter cartridge is an integral two stage depth filter. The first stage of the filter cartridge is made of non-woven melt blown polypropylene to trap coarser articles.

The second stage inner core is composed of a bi-component polypropylene and polyethylene fibre to provide fine particle retention. This unique design provides a true graded density filter cartridge that offers a marked increase in useful life and dirt capacity.

In addition, the rigid nature means there is no flexing of the cartridge and greatly reducing media migration and particle unloading.

Filter Features–Benefits

  • Two stage graded density melt blown depth filter helps to Maximize dirt holding and useful life
  • Inert pure polyolefin construction, non-shedding media
  • Broad chemical compatibility
  • Low extractables
  • Meets USP Class VI standards – Acceptable for use in food, beverage and pharmaceutical applications
  • Extensive range of lengths and configurations
  • FDA listed materials of construction

Applications

Paint • Perfumes • Cutting Oils • CMP Slurries • Magnetic Slurries • Corn Syrup • Plating Solutions • Pre R.O. • Coatings

Filter Specifications

Media: Polypropylene

End caps: Polypropylene

Gaskets/O-Rings: Silicone, Viton, EPDM, Buna-N

Micron ratings: 1, 3, 5, 10, 20, 25, 30, 50, 75μm

Dimensions

Typical nominal lengths: 9.75″, 10’’, 20’’, 30’’, 40’’ (24.8, 25.1, 50.8, 76.2, 101.6 cm)

Other lengths available

Outside diameter: 2.5’’ (6.35 cm)

Inside diameter: 1.0’’ (2.54 cm)

Maximum differential pressure: 50 psid @ 70 °F (3.45 bar @ 21°C)25 psid @ 140 °F (1.72 bar @ 60°C)

Recommended change-out pressure for disposal: 35 psid (2.4 bar)

Stratum C Series – Melt Blown Cartridges

The most advanced melt blowing equipment available is used to create Stratum Series Filter Cartridges. By tightly controlling the manufacturing environment and through use of top-of-the-line microprocessors, we are able to precisely control the process conditions to produce the most reliable, consistently performing melt blown filter on the market today.

Absolute and Nominal Rated

Absolute and Nominal Rated Stratum Series advanced melt blown filter cartridges are available in high performance grades from 0.5 to 75 microns. Whether your process requires the highest efficiency 99.9% rated Stratum A Series, or the 90% nominal efficiency Stratum C series, you can count on the most advanced performance available from a melt blown filter.

High Purity Construction

Stratum filters are made with 100% virgin polypropylene and are free of surfactants, binders and adhesives. They are manufactured in a controlled environment to prevent contamination. The chemically inert polypropylene assures that the Stratum filters can be utilized in a wide range of applications, including the most critical of processes. Stratum filters are constructed of FDA listed materials and tests prove they meet the requirements of USP Class VI. Spent filters can be
incinerated to trace ash.

Filter Features–Benefits

    • Thermally bonded fibers for high void volume and long on-stream life
    • Available in precise 90% removal efficiencies from 0.5 to 75 microns
    • 100% polypropylene FDA listed materials of construction
    • All components meet USP Class IV criteria and are safe for use in pharmaceutical applications
    • Molded center core for higher temperature and pressure capability
    • Free of surfactants, binders and adhesives
    • Certified to NSF/ANSI 61 for materials requirem

Applications

» Chemicals
» Paint/Ink
» Petrochemicals
» Plating
» Beverages
» Pulp and Paper
Melt Blown Filter Cartridge

Melt Blown Filter Series

An economical, disposable, filter element that can be used for a wide range of applications. The depth filter is constructed of 100% polypropylene media for chemical compatibility with a wide variety of process fluids.

Filter Features–Benefits

  • FDA listed polypropylene media
  • Economical depth filtration
  • High dirt holding capacity
  • Gradient density fixed pore construction eliminates dirt unloading as differential pressure increases
  • Thermal bonded endcaps optional
  • MBF filters are free of binders, adhesives and surfactants

Applications

Food & beverage • Aqueous solutions • Chemicals • Blow-down post filter • Wastewater • Rad waste • Magnetic tape coatings • RO Pre-filters • Ink

Contact us on 011 435 0348 or email as at [email protected] should you require a brochure or any further information on this product.

Filter Specifications

Media: Polypropylene

End caps: Polypropylene

Gaskets/O-Rings: Silicone, Viton, EPDM, Buna-N

Micron ratings: 1, 3, 5, 10, 20, 25, 30, 50, 75μm

Dimensions

Typical nominal lengths: 9.75″, 10’’, 20’’, 30’’, 40’’ (24.8, 25.1, 50.8, 76.2, 101.6 cm)

Other lengths available

Outside diameter: 2.5’’ (6.35 cm)

Inside diameter: 1.0’’ (2.54 cm)

Maximum differential pressure:  50 psid @ 70 °F (3.45 bar @ 21°C)25 psid @ 140 °F (1.72 bar @ 60°C)

Recommended change-out pressure for disposal: 35 psid (2.4 bar)

Graver Technologies logo

Graver Technologies Filtration specialists

Germ Africa are the exclusive distributors of the Graver Technologies brand of Filter media and Ion Exchange Resins in Africa.

Graver Technologies of Glasgow, Delaware in the USA is one of the world’s largest manufacturers of filtration products. They are a member of the Marmon Group, an international group of companies with annual sales of more than $6bn. Their quality systems are ISO 9001:2000 compliant, and their membrane filters are flushed, tested and packaged in a Class ISO 7 clean room.

Graver’s filtration product range is extremely comprehensive, and encompasses filter cartridges in numerous materials, styles, designs and sizes. They have a suitable filter cartridge for almost any liquid or compressed gas filtration applications

A wide range of Graver filter cartridges are stocked in South Africa by Germ Africa.  To experience the complete range of filtration products from Graver, please visit their website at : http://www.gravertech.com or contact us at [email protected]

The Graver Range includes a wide variety of filter cartridges catering for 90% of your filtration needs:

Graver Technologies is one of the fastest growing filtration companies in the world and continues to server its clients with quality products at affordable prices.

Improper cooling tower filtration can lead to serious illnesses.

Earlier this year, a woman living in the Washington Heights area of New York City filed a lawsuit against the Sugar Hill Project, the impressive $84 million subsidized housing building located in nearby Harlem. Completed in 2014, the mixed-use facility was designed to be an affordable living space for one of New York’s poorest communities, yet the development had one major issue that belied its high-minded, revitalization goals: it was getting people sick. 

Last summer, more than 50 people in the surrounding area were hospitalized resulting in 2 fatalities, all related to Legionnaire’s Disease. The outbreak was connected to the housing project’s cooling tower, which has since been shut down. If not properly filtered, cooling towers can instigate microbiological growth that can lead to health problems, such as those caused by Legionella.  

As an integral component of many cooling systems, cooling towers are typically used in industrial applications and in large commercial buildings to extract heat from a process or building system through evaporative cooling. Cooling tower systems operate most efficiently when their heat transfer surfaces are clean, but by design, require a large air-water interface to obtain this cooling and thus the system is subject to four major water treatment concerns: corrosion, scaling, fouling and microbiological activity. 

As waterborne deposits collect, they reduce heat transfer efficiency which can be very costly. Traditionally, the deposits are controlled by system blowdown, which increases wastewater discharge as well as concerns about water usage due to drought and environmental threat. As a result, cooling towers are being operated at higher contaminant concentrations, which only compound the problem. 

Addressing it involves full flow and side stream filtration. Filtration reduces blowdown, energy consumption and the kinds of fouling that leads to harmful microbial growth. Full flow filtration uses a filter installed after the cooling tower on the discharge side of the pump and is designed to continuously filter all of the recirculating system water. Side stream filtration continuously filters a percentage of the flow which significantly reduces system footprint, capital investment and operational cost — all very important considerations for affordable housing budgets. Additionally, these systems can be cleaned offline without shutting things down, eliminating the need for planned downtime. 

There is an array of filtration technologies available in the market, but few achieve adequate efficiencies. Screens require frequent backwash which increases water discharge. Hydroclones suspend solids through centrifugal force which can leave smaller particles behind. Sand filters can offload sand into the system. Bag filters have limited surface area, requiring large vessels to address flow requirements. All address some of the costs associated with inefficient cooling tower filtration, but in many cases introduce new ones.

Cartridge filters, on the other hand, address all costs: environmental, operating and health. They’re a disposable medium that exists in both non-pleated (lower cost, generally lower efficiencies) and pleated designs (high surface area) and offer high retention down to sub-micron levels, thus effectively addressing bio-burden issues. Some newer designs in the market such as large diameter offer further improvements in flow rates while reducing operating costs. 

In March, the New York City Council voted to reform the city’s cooling tower inspection protocol requiring the city’s Department of Buildings and Department of Health to present an annual report of cooling tower inspection results to the city council and post the results online. Cartridge filtration could play a critical role in those results, as well as the well-being of the surrounding Harlem and Washington Heights communities. The entire story is yet to be told, but it deserves a happy ending. Especially when one considers that the Sugar Hill Project has been designed with a Children’s Museum of Art and Storytelling at its base. 

STRATUM A – ABSOLUTE RATED

Stratum™ A Series Absolute Rated Melt Blown Filter Cartridges

•Absolute retention ratings from 0.5 to 70 microns

•Multi-zone melt blown depth filter with a graded pore structure for maximum dirt holding capacity •Thermally bonded fibers for high void volume and long on-stream life •Lot traceable filters come with certificate of conformance •100% polypropylene FDA listed materials of construction •All components meet USP Class VI criteria and are safe for use in pharmaceutical applications •Molded center core for higher temperature and pressure capability NSF logoCertified to NSF/ANSI 61 for materials requirements only – Component * Typical Applications »Water »Pharmaceuticals »Food and beverages »Microelectronics »Cosmetics »Polymers »Coatings * NSF 61 applies to NN, P6 and PX styles only

•Multi-zone melt blown depth filter with a graded pore structure for maximum dirt holding capacity •Thermally bonded fibers for high void volume and long on-stream life •Lot traceable filters come with certificate of conformance •100% polypropylene FDA listed materials of construction •All components meet USP Class VI criteria and are safe for use in pharmaceutical applications •Molded center core for higher temperature and pressure capability NSF logoCertified to NSF/ANSI 61 for materials requirements only – Component * Typical Applications »Water »Pharmaceuticals »Food and beverages »Microelectronics »Cosmetics »Polymers »Coatings * NSF 61 applies to NN, P6 and PX styles only

•Multi-zone melt blown depth filter with a graded pore structure for maximum dirt holding capacity •Thermally bonded fibers for high void volume and long on-stream life •Lot traceable filters come with certificate of conformance •100% polypropylene FDA listed materials of construction •All components meet USP Class VI criteria and are safe for use in pharmaceutical applications •Molded center core for higher temperature and pressure capability NSF logoCertified to NSF/ANSI 61 for materials requirements only – Component * Typical Applications »Water »Pharmaceuticals »Food and beverages »Microelectronics »Cosmetics »Polymers »Coatings * NSF 61 applies to NN, P6 and PX styles only

Graver Technologies ISO Registration of Quality System demonstrates our long term commitment to continuous process improvement.

Graver was Founded in 1880s – part of Union Tank CarSupplied water treatment for pressure steam boilers

The Graver CompanyFormed in 1950s Supplier of water treatment equipment to power generation and chemical processing industries

Graver Chemical Company Formed in 1993Supplier of IX, adsorbents and condensate filtersGraver Technologies Named changed in 1998 Expansion into filtration and separation technologies

Filter Cartridges

Filtration and Particle removal

Filtration

The Filtration Division of Germ Africa offer a wide range of locally manufactured and imported filtration related products including:

Our fields of expertise extend to the following areas where we can help you achieve your aims.

  • Water Purification

Ion exchange resins and back washable filters for condensate polishing and ultra pure water applications

  • Trace Contaminant Reduction

Adsorbent media for removing organic, inorganic and heavy metal impurities from industrial and aqueous fluids

  • Process Filtration

Liquid, air and gas filters and cross flow membranes for clarification of industrial and critical process streams

Our exclusive range of imported filter cartridges are supplied by Graver Technologies of the USA.

Whilst we manufacture as well as import a range of filter bags from FSI/PALL, these bags are primarily used in the automotive sector due to their speciality in nature.

Our South African manufactured filtration range of products are marketed under the brand name Flowrite, we manufacture yarn wound filter cartridges as well as resin bonded filter cartridges.

The products supplied and supported by the Filtration Division are primarily geared towards the filtration of liquids and compressed gasses. These products are typically reticulated in piping systems from 15mm diameter upwards, and at pressures from 20 bar down, and the product range of the Division reflects this.

Our Mission in the filtration division is:

To provide value-added products and innovative technological solutions for process filter markets.

Vision

To be a leading provider of liquid process filters in our served markets.

To be a preferred partner of our customers by providing high quality products and outstanding service.

To grow profitably, thereby increasing customer loyalty and stakeholder value.

However, special-duty products can be designed for almost any application.

The Filtration Division products are currently providing reliable, efficient and low-cost service in many industries, including:

  • Pulp & Paper
  • Auto-Manufacturing
  • Petro-Chemical
  • Food & Beverage
  • Paints & Coatings
  • Domestic Water
  • Power Generation
  • Steel Mills
  • Wines & Spirits