Fabricated Basket Strainers (also known as Pot Strainers) are the ultimate solution for high-flow piping systems requiring heavy-duty filtration. Unlike standard cast strainers, these are custom-engineered and fabricated from Mild Steel (MS) or Stainless Steel (SS) plate and pipe. This construction allows for a much larger internal volume and a greater filtration surface area, ensuring minimal pressure drop even when handling heavily contaminated fluids.
Designed for horizontal pipelines, the "top-entry" basket design allows for easy removal and cleaning of the filter element without spilling the process media, making it the premier choice for protecting pumps, heat exchangers, and cooling towers.
Key Features & Benefits:-
- Custom Engineered Design: Because these are fabricated, they can be tailored to specific face-to-face dimensions, nozzle orientations, and specialized pressure ratings that off-the-shelf cast strainers cannot meet.
- Superior Debris Capacity: The large internal "pot" allows the strainer to hold a significant amount of solids before requiring cleaning, extending the time between maintenance cycles.
- Low Pressure Drop: The high ratio of screen area to pipe area ensures that flow velocity remains consistent, reducing energy costs and pump wear.
- Easy Maintenance (Top Opening): Features a bolted or "Quick-Opening" davit cover, allowing operators to lift the basket out vertically for rapid cleaning or replacement.
- Rugged Construction: Available in Mild Steel (with epoxy or rubber lining for corrosion resistance) or Stainless Steel (304/316/316L) for high-purity and aggressive chemical applications.
Technical Specifications:-
| Feature |
Mild Steel (MS) Fabricated |
Stainless Steel (SS) Fabricated |
| Common Grades |
IS 2062 Gr.B / ASTM A516 Gr.70 |
ASTM A240 304 / 316 / 316L |
| Size Range |
2" to 48"+ (DN50 – DN1200) |
2" to 36"+ (DN50 – DN900) |
| Pressure Ratings |
PN10, PN16, ANSI Class 150/300 |
PN10, PN16, ANSI Class 150/300 |
| Screen Material |
SS 304 / 316 / 316L |
SS 316 / 316L / Duplex |
| End Connection |
Flanged (ANSI, DIN, BS, JIS) |
Flanged / Butt-Weld |
Target Industrial Applications:-
Fabricated Basket Strainers are the heavy-duty "gatekeepers" for large-scale fluid systems:
- Water Treatment & Desalination: Removing sand, shells, and debris from raw water intake lines.
- Oil & Gas Refineries: Filtering crude oil, lube oils, and refined products in high-volume transfer lines.
- Power Generation: Protecting condenser tubes and cooling water pumps from river or seawater debris.
- Chemical & Process Industries: Straining aggressive chemical slurries and solvents (utilizing SS construction).
- Steel & Paper Mills: Managing large volumes of process water and protecting spray nozzles.
Why Choose Fabricated over Cast Strainers?
While cast strainers are limited by mold sizes and material grades, MS/SS Fabricated Basket Strainers offer unlimited flexibility. They are ideal for large bore piping where cast versions become prohibitively heavy or expensive. Additionally, fabrication allows for the integration of specialized features like differential pressure taps, heating jackets, and structural legs, providing a truly bespoke filtration solution for your infrastructure.
