Duplex Filters

Duplex filters eliminate process disruption and facilitate continuous and uninterrupted operation.

Duplex filters operate in duty/standby arrangement and switch over is achieved with 3 way valves on smaller systems and inlet/outlet butterfly valves or ball valves on larger systems. In addition, we can also offer hygienic duplex filter housings for food and beverage applications.

We can combine any two filter housings from our range to offer an economical duplex filtration solution. 

Flow rates range from 1m3/hr to 100 m3/hr. All units are supplied fully assembled with pipework and valves. Optionally we can add differential pressure measurement, pumps and reed switches if required.

  • 2BFOS2 Duplex Bag Filter Housings (Duty/Standby)

    2 x BFOS2 bag filter housings in duty/standby arrangement complete with switch over valves. This unit eliminates process disruption due to filter maintenance. Filtration can…

  • 2FU Duplex Cartridge or Mesh Filters

    This duplex filter system can be supplied with standard cartridges or cleanable Stainless Steel mesh filters in lengths of 5″, 10″, 20″ & 30″. A…

  • 2ALSI2 Duplex Bag Filter Housings (Mini)

    ALSI mini bag filter housings (for size 3 or size 4 bags) in duplex arrangement, complete with switchover 3 way valves and differential pressure gauge…

  • Large Multi Bag Duplex Filters

    High flow rate duplex filters for flow rates of up to 360m3/hr. Suitable for 4, 6, 8 or 12 filter bags (Size 2). Stainless steel…

  • 2ALSI4 mini bag housings in duplex arrangement

    2 x ALSI4 mini bag filter housings in duty/standby arrangement complete with 3 way valves and differential pressure gauge to indicate blocked filter bags. This…

  • F101 MINI Duplex Strainer

    F101 Duplex strainers are compact units, supplied in duty/standby arrangement for uninterrupted operation. Flow can be switched by using a lever, allowing for easy maintenance. F101…

  • F311 High Flow Duplex Strainer

    F311 duplex strainers provide uninterrupted flow capability from 30 –  635 m3/h. Flow can be switched by using a lever, allowing for easy maintenance. F311 duplex basket…