Duplex Strainer

Product Overview

The CMI DSTC Series Duplex Strainer is a compact dual-chamber basket strainer designed for applications requiring continuous filtration without process interruption.

With a lever-operated changeover valve mechanism, the operator can switch flow from one basket chamber to the other while the system remains in operation, allowing one basket to be cleaned while the other stays online.

Its compact cast construction makes it suitable for space-limited installations, while the reinforced PTFE seat and double O-ring sealing system ensure reliable leak-tight performance during changeover.

The duplex design is ideal for systems where shutdown is costly, difficult, or unacceptable.

Key Features

• Continuous filtration without shutdown
  Enables one basket to be serviced while the other remains in operation.
• Single-handle changeover operation
  Lever-operated switching mechanism simplifies basket selection and maintenance.
• Reliable sealing performance
  Reinforced PTFE seat and double O-ring design help ensure leak-tight operation.
• Compact cast body design
  Ideal for installations with limited piping space.
• Durable stainless steel baskets
  Available in SS304 or SS316 with various mesh or perforation options.
• Suitable for continuous-duty systems
  Designed for utility and process lines where uninterrupted service is required.

Technical Specifications

Applications

The duplex strainer is widely used in systems requiring uninterrupted filtration and equipment protection:

• Pump protection
• Cooling water systems
• Process water circulation
• Chemical pipelines
• Fire protection systems
• HVAC and chilled water systems
• Industrial general pipeline filtration
• Fuel and oil lines
• Utility water loops

Duplex strainers are particularly suitable for applications where process shutdown is expensive or operationally difficult.

Customization Options

• Higher pressure ratings
• Special alloys (Duplex, Super Duplex, Hastelloy)
• Magnetic insert baskets
• Quick-opening covers
• Special flange drilling standards
• Internal epoxy or rubber lining

Why Choose Duplex Strainer?

Duplex strainers are the practical solution for continuous-duty filtration systems where downtime is not acceptable.

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