Oct 28, 2023

Duplex Basket Filter Housings


Duplex Basket Filters and Strainers provide continuous process flow service, allowing cleaning or replacement of a basket without interrupting the process flow. Duplex Filter/strainers can be supplied as either cast or fabricated units which are normally installed horizontally into pipelines, however, fabricated units can be orientated to suit your requirements. Duplex strainers comprise two filter chambers, one duty and one standby, each housing either single or multi baskets.

The two filter chambers are interconnected by a valve changeover system, which diverts the flow from one chamber to the other without interrupting the process flow. There are several different valve arrangements that are used to divert the flow and these are detailed below.

Duplex Basket Filters are used to clean liquid, viscous and gaseous media. They offer perfect protection against  undesirable particles and are cost effective in protecting your piping, industrial valves and plants.

A wide selection of materials available including :

  • Carbon Steel
  • Low Temperature Steel
  • Various grades of Stainless Steel, Gunmetal, Aluminum Bronze, Cunifer (90/10), Duplex and Super Duplex Stainless Steel, 6Mo Stainless Steel, Alloy 20, Alloy 28, Inconel, Monel, Hastelloy and Titanium.

Optional features can be accommodated to most units and include :

  • Magnetic basket assemblies
  • Pleated baskets for high filtration areas
  • Special coatings and linings
  • Vent and drain valves
  • Team jackets (fabricated units only)
  • Special reinforced baskets for high collapse pressures
  • D.P gauges and switches c/w alarms
  • Flanged D.P. , vent and drain connections
  • Special basket assemblies for fine filtration