Process Filtration

Our depth filter cartridges provide a range of filtration requirements, from pre-filter to final filtration processes. Nominal progression and absolute versions deliver retention ratings from 0.3µm to 1000µm. Products include Filopor Wound, Deltapor Melt Blown and RBC Phenolic Impregnated Resin.

Our Poliflo and Poliflo II ranges provide the large surface area required for optimal filtration while ensuring high flow rates and low pressure drops. Manufactured from *FDA-approved polypropylene, glass fibre, or polyester fibre, these filters suit wide-ranging applications and have retention ratings from 0.2µm to 250µm including a validated cryptosporidium retentive option. Depending on the application, these durable and versatile pleated filter cartridges are compatible with highly aggressive solvents and chemicals.

*EC EC1935/2004 and FDA 21 CFR part 170-199 approved polypropylene.

Our Bevflo and Bioflo membrane filter cartridges are designed for use in final stage and microbial stabilisation filtration, with retention ratings from 0.05µm – 1.2µm. Each polyethersulphone (PES), polytetrafluoroethylene (PTFE) or nylon filter is integrity tested and designed to withstand sterilisation temperatures.

Our Refinsorb filters effectively remove up to 99% of dissolved and dispersed hydrocarbons from water through adsorption. Adsorbing around three times its weight, Refinsorb retains high flow rates with maximum efficiencies. These oil absorption filters are available in different lengths to fit most common filter housings. 

Our Carbopore activated carbon filters are porous filters with high adsorption rates.  Widely used in industrial processes, they are the most efficient method of removing odour, chlorine, volatile organic compounds, colours, tastes and contaminants from fluids.

Our resin bonded filter cartridges have a unique, proprietary two-stage filtration design to maximise particle removal and service life in viscous fluid filtration applications. An outer, spiral, prefilter wrap increases cartridge strength and eliminates residual debris associated with other, machined, resin bonded cartridges. To meet a wide range of performance requirements, these resin bonded filter cartridges are available in eight differentiated removal ratings from 2µm through to 150µm. Phenolic resin impregnation strengthens the cartridge for fluid viscosities up to 15,000 SSU (320 cks) and withstand pressure surges up to 150 psid across the cartridge (depending on fluid temperature).

Our Flusint Fiber, Flusintmesh and Flusint Powder brands of stainless steel, metal filter cartridges are designed for both liquid and steam filtration. These cartridges are ideal for extreme conditions, including high temperatures and the use of high viscosity liquids and aggressive chemicals.

Our range of ceramic, carbon and plastic cylinders and cartridges are available in a range of different porous materials to match your application. These strong and reliable cartridges and cylinders have gas thermal resistance up to 1000°C and chemical resistance within pH0 – pH14.

Our Fluxflo filter bags are available in various materials such as polypropylene, polyester, nylon, wool nomex, PTFE and oil adsorbing. This makes them suitable for use across a range of industries and applications.

The filter bag range includes silicone free needle felt bags, monofilament and multifilament mesh bags, absolute rated filter bags, high efficiency filter bags and filter bags certified for use in the pharmaceutical and food and beverage industry. The filter bags are also available in various sizes so that they fit almost like bag filter housings. Available from 0.2ꙡm to 1000ꙡm and are well suited for most industrial applications.

Our filter sheets are designed for purity and quality. From the removal of coarse matter right through to sterilising filtration, we have a product suited for every application. All products are carefully manufactured and tested to ensure consistent product quality.

This range includes:

Depth Filter Sheets – for liquid filtration. With filtration grades from 4.0µm to 0.1µm nominal rating, select specific retention efficiencies for your application.

Support Sheets – a unique washable, reusable protective sheet for pre-coat filtration in kieselguhr frame filters. Our support sheets offer particularly high performance due to their improved wet strength and optimised surface. 30 pre-coating cycles are possible, irrespective of the liquid being filtered and the filter aids used.

Whether you’re looking for single or multiple housing solutions, for bags or filter cartridges, we provide many standardised and bespoke solutions.

Envirogen supplies single bag, multi-bag and cartridge filter housings and vessels, designed and manufactured according to the requirements of the Pressure Equipment Directive (PED). Suitable for all operating conditions, our filter housings are constructed from carbon steel, stainless steel, plastic or special bespoke materials for critical fluids.

For final filtration, steam filtration and clean-in-place applications, for the food and beverage, pharmaceutical and electronics industries, sanitary filter housings are also available. These filter housings have a hygienic design and are self-draining to minimise contamination risk, improve cleanability and corrosion resistance.  

Upon request, filter housings can be designed for installation in areas in danger of explosion, in accordance with the ATEX directive.

We also provide fully customised solutions to suit your exact application.

For more than a century, pressure leaf filters have provided an economic, reliable and proven cake filtration solution for liquids with higher solid loads, between 0.01 – 3%. We provide a full range of pressure leaf filters for dry or wet cake discharge, in both vertical and horizontal vessel orientations. We have a range of filter meshes for every filtration step in the production of edible oils, gelatine processing, liquid sulphur filtration and bio-diesel production. In these industries it’s common to used top-mesh gauze such as PZ80, 60 Mesh, 24×110 (Dutch Weave) made in stainless steel 316 or 904L.

We’ve installed thousands of pressure leaf filters across the world. While the vessels operate for decades, the filter elements need to be changed more often. For almost every make or model available in the market, Envirogen offers high-quality filter leaves. Using the latest developments for high flow nozzles, a re-enforced box profile as standard and a five-layer mesh configuration. Our high-quality filter leaves come highly recommended and are used for a wide variety of applications. The leaves are available in a variety of materials and with a range of structures to suit every filtration task.

Pulse tube filters are automatic filters comprised of a cylindrical metal element covered with a filter cloth, forming an initial cake more easily on the element. We provide a wide range of pulse filters for every application, replacing bag filters and removing the additional associated consumable cost and time taken to change the bags. Pulse tube filters provide an added safety element as the back pulse cleans the element or filter cloth without exposing operators to toxic liquids.

We supply a range of replacement filter cloths for food, vegetable oil and industrial processes and most come ready with an EC1935/2004 Food Declaration. Our knowledgeable staff can recommend the best filter cloth to meet your cake filtration requirements, with the lowest operational cost.

Plate and frame systems are popular in many different applications, especially in the food industry, including vegetable oil and beer production and for use in kieselguhr filtration and sterile filtration using sheets.

We are the only single-source supplies in the market providing a combined supply of Orion plate and frame filter packs alongside hydraulic equipment services and overhauls.

We supply:

• Filter sheets in all grades and sizes
• Machinery spare parts, including shoes, handles, seals
• Emergency exchange components, including vital and frequency-required, pre-assembled and reconditioned components, tested and ready for quick and easy installation.

Horizontal plate filters are typically designed for batch processing of liquids with high suspended solids where bags or cartridges do not provide an economical solution.

Our filters are available as normal flow and reverse flow to ensure all solids remain in the element bundle and they can be used with filter paper, filter sheets or mesh depending on the application. With the elements placed horizontally, the filter cake can be easily washed. Both normal flow and reverse flow filters are designed to have no heel liquid at the end of the filtered batch.

For coarse filtration processes, Envirogen has a full range of strainers available, from single basket to duplex and temporary strainers to ensure continuous flow.

Available in cast steel, carbon steel and stainless steel we have strainers for every application and they are ideal for protecting equipment such as pumps and heat exchangers. Our baskets are available with different ratings ranging from 10 µm to 10 mm.

Self-cleaning filters are designed to provide efficient filtration for liquids that require continuous filtration without interruption during the cleaning process, from water to high viscosity liquids. Depending on the process conditions, these automatic filters can be used with a wide selection of screens from 10 µm to a few millimetres.

Our scraper style self-cleaning filters are suitable for high viscosity liquids. Our suction scanner filters are designed for water filtration, including pre-filtration for ultrafiltration and reverse osmosis systems, the production of cooling water or for the intake of river water, borehole water or irrigation water.

We have a wide selection of screens, from 10µm – 1000 µm. Envirogen self-cleaning filters are low maintenance, time-saving and have a large surface area for maximum efficiency.

Our self-cleaning disk filters are designed for low micron filtration. Each filter is self-cleaning, with compressible discs that can be flushed with high-speed water, saving energy and water, with no interruption to the clean water supply. Discs are available from 5 µm – 500 µm, all with a compact, energy and water-saving design and easy changeover for low maintenance.