Duplex SS 2205 Y Strainers

At Falcon, we provide high-performance filtration solutions that bridge the gap between standard stainless steels and expensive nickel alloys. Our Duplex 2205 Y-Strainers are the industry workhorse, offering a significant upgrade in both mechanical strength and corrosion resistance for demanding process environments.

Duplex 2205 is a nitrogen-enhanced stainless steel with a dual-phase microstructure consisting of approximately 50% Austenite and 50% Ferrite. This balance provides:

• Double the Yield Strength: Duplex 2205 is roughly twice as strong as standard Type 316 stainless steel, allowing for more robust strainer designs and higher pressure capabilities.

• SCC Immunity: Unlike standard 300-series stainless steels, 2205 is highly resistant to Chloride Stress Corrosion Cracking (SCC).

• Superior Pitting Resistance: With a higher Chromium and Molybdenum content, it significantly outperforms 316L in preventing localized pitting and crevice corrosion.

• Cost-Effective Performance: Provides many of the benefits of high-nickel alloys at a fraction of the cost, making it ideal for large-scale industrial projects.

The preferred choice for high-pressure instrumentation and critical chemical lines.

• Grain Refinement: Forging creates a dense, uniform material structure that excels in Class 600 and 800 pressure ratings.

• Precision Reliability: Best for small-bore piping where structural integrity and safety are paramount.

The global standard for process water and general chemical service.

• Grade 4A (CD3MN): This is the specific cast designation utilized by Falcon for our Duplex 2205 Y-strainer bodies.

• Optimized Flow: Our cast designs feature smooth internal transitions to minimize pressure drop ($\Delta P$) and prevent sediment buildup.

Falcon ensures every unit is fully traceable and complies with these global designations:

Falcon’s Duplex 2205 strainers are highly effective in:

• Oil & Gas Production: Gathering systems, produced water handling, and injection lines.

• Chemical Processing: Equipment for the production and transport of organic acids and chloride-contaminated fluids.

• Marine & Coastal Infrastructure: Seawater cooling systems and firewater loops on ships and platforms.

• Pulp & Paper Industry: Digesters, bleach washers, and liquor handling systems.

• Water Desalination: Pre-filtration stages and brackish water treatment.

• Design Code: ASME B16.34 (Standard for Pressure-Containing Components).

• Pressure Ratings: ANSI Class 150 through Class 900.

• Testing: 100% shell and seat pressure testing per API 598.

• End Connections: Flanged (RF), Socket Weld (SW), and NPT Threaded.

Falcon Quality Assurance: Every Duplex 2205 Y-Strainer includes a full EN 10204 3.1 Material Test Report (MTR). To ensure total system compatibility, Falcon manufactures all internal screens from the same S32205 grade, preventing galvanic corrosion.

Falcon Duplex 2205 Y-Strainers provide a high-strength, cost-effective upgrade to standard 316L stainless steel. Engineered with a dual-phase microstructure, these strainers offer double the yield strength and exceptional resistance to Chloride Stress Corrosion Cracking (SCC). Available in Forged (ASTM A182 F51) and Cast (ASTM A890 4A), they are the industry workhorse for oil and gas gathering, chemical processing, and brackish water treatment where pitting and high pressures are a constant challenge.