The Plenty Duplex large D-Type (10″-20″) Basket Strainer is designed with two filtration chambers for applications that require a continuous flow whilst the filter is cleaned.
The D-Type employs a rugged and positive method to changeover from the operating to the standby chamber using two disc valves operated by screwed shafts. The shafts are interconnected giving a simultaneous action ensuring that a filtration chamber is always in operation. An external indicator is fitted to the shaft to show which chamber is in operation, allowing the basket in the other chamber to be removed and cleaned.
The shafts are sleeved and protected from the process liquid.
As the change over valves are moved via a hand wheel along a crank shaft to isolate chambers, this isolates the chamber from the main process flow, the ‘off-line’ chamber can then be accessed safely, in full operation conditions, for cleaning and maintenance. No by-pass required.
Features:
- Hand operated or automactice change over option
- Pressure equalising valve
- External valve indicator showing which chamber is on stream, with synchonised chain drive
- Flanged connections
- Replicable valve seats
- Sizes from 250mm – 500mm
- Up to 300 psig pressure
- Filtration mesh inserts from 20 – 300 mesh available for fine filtration applications
- Selections of body materials available Cast Iron and Cast Steel
- Optional extras available: Differential Pressure Indicators and switches, Magnetic Columns, air eliminators, special paint coating (inside or out), heating jackets, flanged vents and drains
