Selection of 43 products among
118
CAGE FILTER NOZZLES
Material Specification
1. The nozzles shown here are generally made of stabilised polypropylene (PPH-PPN) (series No. 1000). Filter nozzles for the processing of cold water (Gravel-Filters)
could, if necessary, be made from cheaper material, however, the hardness, toughness and wear-resistance of the above material would not be obtained with cheaper material.
2. Polypropylene (PPH-PPN) of the type 1000 series has a permanent temperature resistance of from 80 to 100o C. For temperatures below 0o C we recommend PPH 1022 material.
3. The polypropylene (PPH-PPN) of the type 1000 series has complete resistance against the following heat-and chemical-treatment:
- against saturated boiling solutions of normal salt, up to 12 months at 100o C
- against a 30% hydrocholoric acid up to 60o C; also against a 50% caustic soda solution.
4. This material is especially suitable for neutralisation of activated carbon at a temperature of 120o C watersteam (at short runs 2-3 times a year). Having a temperature of 80-100o C on a continuous basis will do no harm.
5. The percentage of water absorption of polypropylene (PPH-PPN) is negligible. After a period of permanent use of up to 6 months, no swelling and no outside changes have been observed.
6. During all permanent tests in hot or cold water, which have been made up to now, no changes of the compressive strength and tensile strength have been observed.
7. The commission appointed by the Bundesgusendheitsamt (Federal Hygienic Institute in Germany) to test plastic materials in respect to health requirement, has approved polypropylene of series No. 1000 to be in conformity with the Lebernsmittelgesetz (Food Products Laws).
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View the product on hiberniaeth.com
Hibernia Rainharvesting
FLO KING BX1200 FILTER SYSTEM
Flo King BX1200 Filter System
The BX1200 provides a maximum flow rate of 3600 litres per hour. Available in a variety of body lengths(4, 6, 8, 10, 12, 14, and 16 inches) enabling use of the BX1200
in tanks with varying solution levels and depths.
The BX1200 comes complete, preassembled, and ready to operate and includes a Permacore 10 micron reusable filter cartridge.
The standard pump is constructed from CPVC with a teflon covered stainless steel shaft. Polypropylene construction is available as an alternative where CPVC is not suitable for the process in question.
The pump is also available in PVDF/Kynar to special order.
For processes that cause plastics to warp, swell, crack or otherwise fail a stainless steel version is available in a 10 inch body length only.
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View the product on pmdgroup.co.uk
PMD ENGINEERING
MEMBRANE - HYDRO-X89
The Problem
The traditional approach to water treatment is to use a combination of treatment stages which could include coagulation, settlement, and filtration to remove contaminants, and then rely
on disinfection, where required, to ensure the safety of the treated water.
However, coagulation and granular media filtration, are only partially effective in removing the contaminants, which places a heavy burden on the subsequent stages. Moreover, some contaminants such as Cryptosporidium are resistant to disinfectants.
Membranes offer a radically different approach to the issues of water quality, since the membrane provides an essentially complete barrier to even the smallest contaminant affecting water quality.
The Kalsep Approach (back to top)
Since its inception as a specialist separations company, Kalsep has been dedicated to providing value engineered solutions to water treatment probLems. Our innovative
Fibrotex fibrous filters (which won the prestigious Hydro Award for Water Quality Improvement) are now installed world-wide with over 500 units in the UK alone. Similar accolades have been received for the development of a new range of high
performance membranes, specifically developed to address water treatment applications. Following awards under the DTI's ETIS and SMART schemes, Kalsep have introduced KALMEM and KALMEM LF membranes to a range of water treatment duties. By combining a breakthrough in membrane performance with reductions in manufacturing costs, Kalsep have breached a cost barrier which once seemed impenetrable.
But Kalsep doesn't just offer membranes. We offer membrane solutions reinforced by process guarantees, extensive trial facilities, and field experience.
Directflow Operation (back to top)
After initial pre-treatment through a pre-filter, the feed water enters the bore side of hollow fibres in the membrone module. The particulates and macromolecules are retained, whilst the clarified water is allowed to pass as permeate through the membrone. Normally, aperoting in direct/low made, the high flow rote is maintained by a simple backflush using collected permeate. Periodically, a chemical is injected into the back flush to minimise the build-up of fouling contaminants such as scale or biofouling to restore the original flux.
The Technology (back to top)
Membranes
A membrane is a semi-permeable barrier which enables components of a feedstream to be retained whilst allowing the carrier fluid to permeate through. The pore size of the membrane can be tailored such that the degree of separation can be preciseLy controlled. In water treatment applications, membranes in the ultrafiltration (UF) or microfiltration (MF) size ranges remove fine particulate contaminants.
Kalsep's membranes are made from the polymer polyethersulphone (PES), with pore
sizes throughout the UF and MF ranges. A special low fouling modification has been
used to create a unique series of membranes with remarkable properties. Not only are flux rates enhanced in comparison with conventional membranes, but these flux rates can be sustained even for highly fouling surface waters with cleaning requirements minimised.
Process Design
The most effective format of Kalsep's membrane technology is in the form of fine hollow fibres. By using an internal diameter of as low as 0.8mm, the membrane surface area can be maximised in the module whilst avoiding productivity constraints, due to excessive pressure drop.
Directflow
The advantage of the innovative direct/low process is that the bore side pressure drop is maintained at a low level, whilst high fluxes are sustained by use of a frequent backflush. During the forward flow cycle no retentate or waste stream is drawn from the outlet end of the module. Instead, the outlet is closed to form a dead end, so that any particulates rejected by the membrane become increasingly concentrated within the bores of the hollow fibres. The high permeate flowrate is maintained by a simple backflush using collected permeate for a short time once or twice per hour. During the backflush, any particulate fouling of the membrane surface is removed and, together with the concentrated reject, is flushed from the module. Transmembrane pressures (TMP) are extremely low in the directflow process, typically well below 1 bar.
The Benefits (back to top)
Water Quality
Treats feedstreams of widely differing quality to meet water industry targets for metal ion removal and turbidity reduction.
Reduces Silt Density Index to meet pre-treatment requirements for reverse osmosis or nanofiltration.
Cold disinfection
Removes viruses and bacteria using ultrafiltration membranes.
Reduces chlorine demand, and hence contact tank requirements.
Produces water free from pathogenic micro-organisms.
Chlorine Tolerance
Can resist a continuous chlorine residual.
Non bio-degradeable.
Low Backwash
Minimises wastage of backwash water and reduces the need for ancillary tanks and pumps.
Environmental
Minimises environmental impact and chemical consumption by eliminating the need for dosing chemicals and reducing expenditure on cleaning chemicals and waste treatment.
Reduces energy costs by having directflow or low crossflow mode of operation.
Custom Design
Customises the design of the water treatment system to meet specific needs.
High Performance
Higher sustained flux, and hence smaller footprint.
Compact & modular.
The Application (back to top)
HYDRO-X provides cost effective, high performance filtration of feed water in process streams in a wide range of industries. These include:
Water Utilities
Desalination
Engineering
Micro-electronics
Brewing
Major applications for HYDRO-X include:
Mains water pre-treatment for colloid removal and SDI reduction
Filtration of potable water supplies drawn from non-mains source i.e. borehole, surface water
High removal of micro-organisms including crypto, bacteria & viruses
Filtration of sea water prior to RO treatment
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View the product on kalsep.co.uk
Kalsep UK Ltd
AUTOMATIC - BACKFLUSHING FILTER - TYPE 6.18
AUTOMATIC
Backflushing Filter
TYPE 6.18
• Low maintenance
• Efficient cleaning
• Can handle large solids and cope with high solids loading
• On-stream cleaning in seconds
• Backflushes
while still filtering
• Low backflush using process fluid
WEDGE WIRE ELEMENT
The above diagram demonstrates the filtration process using a wedge wire element.
Other element profiles, such as round, longitudinal round, triangular and triangular longitudinal, are available to suit specific applications.
Click here to view cutaway of backflushing technology
TECHNICAL SPECIFICATIONS
BOLLFILTER
TYPE 6.18 Automatic Filter
Filter sizes 50mm up to 1000mm N/B.
Flow rates 7 m3/hr up to 9000 m3/hr.
Filtration levels 3mm down to 25 micron.
Materials of construction Cast Iron, Carbon Steel, Stainless Steel.
Internals/Lining Stainless Steel/FIP Epoxy Lining.
Working pressure 2 bar up to 10 bar as standard (higher pressures available).
Design temperature 0 to 80°C (Other temperatures available on request).
Filter elements Wedge wire Tubes, Mesh Tubes, Round Profile Wire Tubes.
Typical applications Filter Membrane, Spray Nozzle, Heat Exchanger protection. General pipeline scale removal.
Options include Differential Pressure Indicator/Switch.
DWI approved internals for potable water applications.
Control panels to customer specification.
Skid mounted pump and control system for low pressures.
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View the product on bollfilteruk.co.uk
Bollfilter UK
