Duplex Industrial Strainers

Design Definition: Duplex strainer or twin basket strainer is a type of filter built into a fuel, oil or water piping system and it is used to remove large particles of dirt and debris. The duplex strainer system usually consists of two separate strainer baskets housings. The system also contains a valve handle placed between the two baskets to divert the flow of liquid to one strainer while the other is being cleaned. On some strainers, the valve will work automatically and the strainer will perform a self-cleaning operation.

These types of strainers are installed in pipeline systems where flow cannot be stopped. Depending upon their NB size they are capable of filtration up to 40 µm. Basket Strainers find use in industries where impurities are mostly solids. Unlike other types of strainers, it is easy to conduct maintenance on these strainers.

Duplex strainers are mainly used in various industries such as process industry, power industry, chemical industry, oil and gas industry, pulp and paper industry, pharmaceutical industry, metals and mining industry, water and waste management, firefighting industry, refineries and petrochemical plants. Strainers are used to remove hazardous elements that might cause partial or complete breakdown of operations if they get into the system.

Customization: Tate Andale is a build-to-order factory so it is easy for us to provide semi- custom solutions using our standard industrial strainers, filters, and valves as the base platform. When a semi-custom solution will not solve the problem, our skilled team of engineers is ready to design a custom solution for your toughest industrial fluid-control challenge.

Model TCD Twin Basket

Line Size 3” to 8”
Operation 3” to 4” Utilize Hand Wheel Larger Sizes Utilize Shifting Lever
  • Body, Bonnet & Access Cover - Cast Iron
  • Plug Valve - Bronze
Cover Type Yoke Type
  • Zinc Anodes for Salt Water Service
  • Magnet Assembly
  • 316 Stainless Steel or Monel Baskets
  • Wire Cloth Basket Liner

Model VL & VH Twin Basket

Line Size 1” to 12”
System Pressure 125 PSIG
  • VL: Body & Valve - Cast Iron
  • VH: Body & Valve - High Tensile Cast Iron or Cast Steel
  • Hand Wheels: Cast Iron
  • Access Covers: Steel Plate
Valve Discs Up to 6” - Bronze
6” & Up - Cast Iron or Steel with Bronze Rings
Baskets 304 Stainless Steel
  • Chain drive (hand wheels interlocked)
  • Wire cloth lined baskets
  • Well screen baskets
  • Higher design pressures
  • Magnet assemblies
  • Equalizing lines and valves
  • Zinc anodes for salt water
  • Custom materials

DU-200 Series Dual Strainer

Line Size 1” to 36”
System Pressure 150, 300, & 450 PSIG
  • Carbon Steel
  • 304, 316, & L Grade Stainless Steel
Standards ASME
ANSI Flanged
Inlet & Outlet Configuration Unlimited Nozzle Connections
Bale Type Basket w/Mesh Lining Spec 200 Mesh
  • High Design Pressures
  • Wire Cloth Basket Liners
  • 316 Stainless Steel Baskets
  • 304 or 316 Stainless Steel Bodies
  • Differential Pressure Gauge
  • Hastalloy or Monel Baskets
  • Blowdown Connections
  • Manual Backflush

Model ID Twin Basket

Line Size 1” to 8”
System Pressure 150 to 300 PSIG
  • Cast Steel
  • Bronze
  • Stainless Steel
  • Alloy 20
  • Hastalloy B
  • Custom
Access Cover Yoked or Bolted
Straining Ratios 6.2:1 to 15.5:1