MS Duplex Strainer
A Duplex Strainer comprises two parallel filtration chambers connected via a valve mechanism. While one chamber is in operation, the other can be cleaned or serviced, ensuring uninterrupted flow. The valve system, typically a 3-way ball valve or butterfly valve, facilitates seamless switching between chambers .

Technical Specifications:
- Materials of Construction: Mild Steel (MS), Carbon Steel (CS), Stainless Steel (SS304, SS316), Cast Iron (CI), and other alloys upon request.
- Size Range: 1″ to 24″ (DN25 to DN600).
- Pressure Rating: Class 150, 300, PN10, PN16, PN25, PN40.
- Filtration Rating: 1 to 1000 microns, customizable based on application requirements.
- End Connections: Flanged (ASME B16.5), Threaded (NPT/BSP), Butt Weld, Tri-Clamp, SMS Union/Dairy, and others.
- Temperature Range: Typically up to 250°C, depending on material selection.
- Valve Types: Manual or automated 3-way ball valves or butterfly valves for efficient switching.
Key Features
Continuous Filtration: Enables maintenance without halting fluid flow.
High Dirt-Holding Capacity: Large basket area allows for extended operation between cleanings.
Low Pressure Drop: Optimized design ensures minimal energy loss.
Easy Maintenance: Quick-opening covers and tool-free access simplify servicing.
Versatility: Suitable for various industries, including chemical, petrochemical, power generation, water treatment, pharmaceuticals, and food processing.
Applications
- Chemical Processing: Protects pumps and valves from particulate contamination.
- Power Generation: Ensures clean water and coolant systems.
- Oil & Gas: Safeguards equipment in upstream and downstream operations.
- Water Treatment: Removes debris in potable and industrial water systems.
- Food & Beverage: Maintains hygiene and prevents contamination in production lines.
