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Thompson Duplex/Manifold Strainer

Save time and engineering with our Thompson Strainer Duplex packages. The strainers can be used as a duplex system or both strainers on-line and isolated when service is needed which allows continuous/non-stop operation. Strainers remove impurities from all types of liquid applications such as dirt, debris, scale, sediment, etc. and prevent downstream contamination. Systems are designed with two simplex strainers plumbed together and isolated by an inlet and outlet two-way valve that controls the flow. Our optional instrumentation packages continuously monitor the filtration differential to run efficiently. Proven high performance duplex strainers in a compact, robust design.

Product Details

The Thompson Strainer is our highly efficient, patented stainless steel strainer which features a large conical screen, offering substantially more screen surface area versus traditional y-strainers or basket strainers. All models operate with less than a 1-PSI pressure loss at maximum flow when clean.  Our Thompson Strainer Duplex systems are assembled, tested and ready to ship.

Each Duplex package includes:

The Duplex systems arrive completely assembled and are value engineered to deliver superior performance and long-term reliability.

Key Features
  • Simple Design

  • Space Saving Profile

  • Greater Screen Surface Area

  • Less than 1 PSI Pressure Loss

  • High Quality Stainless Steel

  • Improves Heat Transfer

  • Reduces Energy Cost

  • Flush Particles via Bottom Flush Port

  • High-Tech Controls using Transducers

  • High Filtration Rate, Low Pressure Loss

  • Monitors Differential Pressure via Maxim Controller

  • Cooling Tower

  • Chilled Water

  • Well / Surface Water

  • Process Water

  • Wastewater / Reclaim Water

  • Municipal Water

  • Mining Applications

  • Chemical Processing

  • Food / Beverage Applications (Sanitary Design)

Specs & Documentation

Inlet Outlet
Temp Lid type Max Pressure PDF
MLS-2-Duplex100(2) 122 sq. in.2”/NPT or Grooved135 FClamp125 PSI
MLS-3-Duplex200(2) 200 sq. in.3”/NPT or Grooved135 FClamp125 PSI
MLS-4B-Duplex350(2) 367 sq. in.4”/FLANGED or Grooved135 FBolted150 PSI
MLS-6-Duplex750(2) 745 sq. in.6”/FLANGED or Grooved135 FBolted150 PSI
MLS-8-Duplex1300(2) 1,559 sq. in.8”/FLANGED or Grooved135 FBolted150 PSI
MLS-10-Duplex2000(2) 2,434 sq. in.10”/FLANGED or Grooved135 FBolted150 PSI
MLS-12-Duplex3000(2) 2,434 sq. in.12”/FLANGED or Grooved135 FBolted150 PSI
MLS-14-Duplex4000(2) 2,434 sq. in.14”/FLANGED or Grooved135 FBolted150 PSI
Document Name PDF
Thompson Strainer Owner's Manual
MAXIM Controller OM for Thompson Pump Skid
Thompson Strainer Efficiency Curves
Thompson Strainer Mesh/Micron Data Sheet
Thompson Strainer Cut-Sheet

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