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MANUAL
Duplex
DOUBLE FILTERS & STRAINERS
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| Left to right: Duplex BFD, 2.04.5, 2.05.5 |
Duplex Filters are fitted with an integral changeover valve and are designed for use where the flow cannot be stopped for manual cleaning.
By diverting the flow through a second filter chamber, the element can be cleaned without interruption of the flow.
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• Impossible to completely shut off flow
• 100% duty and standby
• Easy to operate changeover valve
• High filtration areas & solids holding
• Large range of elements & filtration levels
• Robust reusable stainless steel elements
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| TECHNICAL SPECIFICATIONS |
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BOLLFILTER
Duplex Filter Range |
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Filter sizes |
20mm up to 300mm N/B. |
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Flow rates |
Flows up to 300 m3/hr |
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Filtration levels |
3mm down to 5 micron. |
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Materials of construction |
Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel. |
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Internals/Lining |
Stainless Steel/FIP Epoxy Lining. |
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Design pressure |
Up to 40 bar (depending on model). |
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Design temperature |
-10 to 120°C (High temperatures available on request). |
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Filter elements |
Basket, Candle, Multi-mantle, Ring, Cartridge (using material such as metallic mesh, wedge wire or fibreglass media). |
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Typical applications |
Suitable for all types of liquids. Filter Membrane, Spray Nozzle, Pump, Meter & Heat Exchanger protection. Pipeline scale removal. |
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Options include |
Differential Pressure Indicator/Switch.
Automatic Air Release Valves, Heating Elements/Jackets. Magnet elements for metallic particle removal. |
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