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Duplex Strainers and Bag Filters

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Duplex basket strainers are built for continuous flow applications where cleaning shutdowns are not permitted. The duplex filter assembly allows the flow to be switched back and forth between two filter vessels, allowing one side to be serviced while the other is in use. Duplex strainers provide protection for mechanical equipment by straining foreign matter from the connected piping system, reducing overall operating costs.

At Rosedale Products, our Duplex Strainers and Bag Filters provide a better solution for your trouble free, continuous operation project needs. Contact us for more information regarding our Duplex Strainer Filter options or call us at 800-821-5373 and we will gladly answer your specific questions.

Duplex Basket Strainer Model Options

With a variety of unique duplex strainer filter options, Rosedale Products provides continuous flow solutions based on your project’s exact specifications. We offer the following model options in Carbon Steel, 304 Stainless Steel, or 316 Stainless Steel for your continuous operation needs.

Model 4-For Flow Rates to 50 gpm

  • Pipe sizes 1, 2 inch flanged
  • Basket depth: 12 inches (nominal)

Model 6-For Flow Rates to 100 gpm

  • Delivers 3.4 square feet of basket or bag surface without need for ASME code construction
  • Can be fitted to hold cartridge filter elements
  • Pipe sizes 1, 2, 3, or inches (flanged)
  • Two basket depths: 18, or 30 inches (nominal)

Model 8–For Flow Rates to 220 gpm

  • Can be fitted to hold cartridge filter elements
  • Pipe sizes 2, 3, or 4 inch, flanged
  • Two basket depths: 15 or 30 inches (nominal)

Duplex Basket Strainer Advantages

The Rosedale duplex strainer is a better solution, and offers many benefits:

  • Four separate valves are used, all operated simultaneously by a single lever.
  • Valves use the standard butterfly design, known for their effective seal, low pressure drop, and low cost.
  • Any of the valves can be serviced individually, without need to disturb the other valves or piping. 
  • Valves are soft-seated to provide bubble-tight closure.
  • A variety of seal materials is available for use with several hard-to-handle fluids.
  • Mechanical stops assure that the valves are completely open or closed.
  • A single-valve pressure balancing vent system is furnished to ease movement of the lever and to fill the just serviced vessel before use.
  • Vents in filter covers and drain ports in filter housing speed evacuation and filling.
  • Remotely operated power actuators and automatic power actuation (triggered by pressure differential sensing) are offered. Air or electric actuation is best if such power is available.

Duplex Strainer Filter Applications

Duplex strainers are available in numerous styles that fit your project’s needs and budget. Common Duplex Strainer and Bag Filter Applications include:

  • Lubrication systems
  • Marine & industrial oil burners
  • Chemical plants
  • Cooling lines
  • Compressors
  • Condensers
  • Ink supply lines
  • Pumping stations
  • Cooling tower water lines

Duplex Bag Filters

Duplex Bag Filters provide the required filtering for your duplex bag filter needs. Depending on your project’s specifications, we carry numerous types of filter bags that can be easily changed out when required. Some of the different types of filter bags that we stock include:

Contact Rosedale Products for Duplex Strainers and Bag Filter Today

Contact Us for more information regarding our duplex water filter and bag filter options, or Submit a Request for Quote for direct pricing information today. Rosedale Products is your premiere source for advanced Duplex Basket Strainers and Bag Filters.