• Continuous flow
• External body threads
• Low pressure drop
• Wide choice of baskets
• In-line or loop piping design
• True union connections
• Hand removable covers
• Integral, flat mounting base

• Stainless steel mesh baskets
• EPDM seals
• Clear, see through Eastar construction

In many corrosive or sensitive process media straining applications, plastic is preferred material of construction for a duplex strainer. Filtermat's All Plastic Duplex Basket Strainers are resistant to a wide variety of corrosive acids and other aggressive materials. They will work in applications that might require a much more expensive exotic alloy strainer - if one were even available. And because they are plastic they will not contaminate sensitive process media such as photographic chemicals and de-ionized water.

Flow is diverted from one strainer basket to the other by an all-plastic, three-way ball valve assembly. A quick turn of the handle diverts the flow. The handle points to the basket chamber in service, making it easy to determine which basket needs servicing. The strainer cover spin off for fast and easy access to the baskets for cleaning or change out.

FPM seals are standard on all sizes of Filtermat's All-Plastic Duplex Basket Strainers. The cover o-rings are a piston seal assuring a leak tight assembly with the covers only hand tight. These duplex strainers come standard with two perforated all-plastic baskets made of the same material as the strainer itself. This makes determination of chemical compatibility for an application much easier than if two different materials were involved. For finer straining applications, stainless steel baskets are available in micron sizes from 40 to 900 micron (20 to 325 mesh).

Plastic duplex strainers can be used in many applications, even some that you may have thought would require metal strainers. Thinking of replacing a metal strainer with a plastic one to take advantage of lower costs and better corrosion resistance ? First take a look at the temperature/non-shock pressure chart to see if your application falls within range of the plastic material you are considering. If it does, and chemical resistance is not a problem, then the other consideration is the actual installation itself.

Contact Filtermat for specific recommendations for your system. These recommendations may include things such as proper alignment of the strainer in the piping system to eliminate stress, correct support for the strainer and installation of spool pieces of plastic pipe or expansion joints.

Filtermat All-Plastic Duplex Basket Strainers are the answer to highly corrosive or ultra pure applications. They are available in PVC (or CPVC for higher temperatures), in sizes up to 4" - with threaded or flanged connections. They are rated at 10,35 bar at 21°C in most applications.

The pressure loss for a 2" duplex strainer in water service, with a clean 100 mesh basket at 40 gpm, would be :
(40/48)² = 0.69 x correction factor of 1.20 = 0.83 psi

Multiply US Gallon by 3.7853

• the 1/2" to 1" strainers can be ordered with either a 1/32" or 1/16" perforated plastic basket
• the 1 1/2" and 2" strainers can be ordered with either a 1/32", 1/16", 1/8" or 3/16" perforated plastic basket
• the 3" and '4 strainers can be ordered with either a 1/16", 1/8" or 3/16" perforated plastic basket
• stainless steel baskets for all sizes are available in these perfs : 1/32", 3/64", 1/16", 5/64", 7/64", 1/8", 5/32", 3/16", 1/4", 3/8", 1/2"
• stainless steel baskets for all sizes are available in these mesh sizes : 20, 40, 60, 80, 100, 200, 325