The CD4MCU American Standard Flange Ball Valve is a high-strength, duplex stainless steel solution specifically engineered for corrosive and abrasive service. By utilizing CD4MCU (Cast Duplex Stainless Steel) and adhering to ASME/ANSI standards, this valve provides a unique combination of mechanical toughness and elite resistance to stress corrosion cracking and pitting.
Description
CD4MCU (ASTM A890 Grade 1A / UNS J93370) is a ferritic-austenitic duplex stainless steel that offers significant performance upgrades over 300-series stainless steels:
- Superior Hardness: Provides much higher resistance to erosion and abrasion than 316 stainless steel, making it ideal for slurries.
- Corrosion Resilience: Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride-rich environments.
- Mechanical Strength: Offers high yield strength and good ductility, allowing the valve to withstand high-pressure shocks and thermal cycling.
- Acid Handling: Particularly effective in handling nitric, sulfuric, and phosphoric acids.
Features
- ANSI/ASME Compliance: Manufactured to ASME B16.34 and ANSI B16.5 standards, ensuring global interchangeability and proven pressure-containing integrity.
- Full Port Design: Ensures the valve has the same internal diameter as the pipe, reducing turbulence and preventing the accumulation of abrasive solids.
- Blow-out Proof Stem: Engineered for safety, the stem is bottom-entry to prevent it from being ejected by line pressure.
- Precision Sealing: Available with RPTFE or PEEK soft seats for bubble-tight shut-off, or metal-to-metal seats for abrasive slurry applications.
Specifications
| Feature | Specification |
| Design Standard | ASME B16.34 / API 608 |
| Flange Dimensions | ANSI/ASME B16.5 Class 150/300/600 |
| Face-to-Face | ASME B16.10 |
| Body Material | CD4MCU / ASTM A890 1A |
| Pressure Class | Class 150, 300, 600 |
| Temperature Range | -29°C to 250°C (depending on seat material) |
| Testing Standard | API 598 |
Applications
- Mining & Minerals: Handling abrasive slurries, tailings, and acidic leachate.
- Pulp & Paper: White, green, and black liquor processing and bleaching stages.
- Chemical Processing: Environments containing high concentrations of chlorides and sulfuric acid.
- Fertilizer Industry: Management of phosphoric acid and complex chemical fertilizers.
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