Nickel Alloy Gate Valves

Falcon API 600 Gate Valves: Special Alloy Expertise

Falcon is a global leader in the engineering and manufacturing of API 600 Gate Valves, specializing in high-performance metallurgy for the most demanding environments. While standard carbon steel suffices for many, our core strength lies in providing corrosion-resistant alloy (CRA) solutions for offshore, subsea, chemical, and desalination industries.

Special Grade Material Portfolio

We provide a comprehensive range of exotic materials, ensuring superior resistance to pitting, crevice corrosion, and stress cracking:

• Nickel Alloys: Inconel (600, 625, 825), Monel (400, K500), and Hastelloy (C22, C276).

• Nickel Aluminum Bronze (NAB): Specifically ASTM B148 C95800/C95500 for superior seawater corrosion resistance.

• Titanium: Grade 2, Grade 5, and Grade 12 for extreme strength-to-weight ratios and chemical inertness.

• Stainless & Duplex: 254 SMO, Super Duplex (Gr. 4A, 5A, 6A), and 904L.

Technical Specifications & Capabilities

Quality Assurance & Rigorous Testing

Every Falcon valve undergoes a stringent quality protocol to guarantee zero-leakage performance in critical service.

1. Design Integrity: Full compliance with API 600 wall thickness requirements, which are heavier than standard valves to ensure a longer erosion/corrosion life.

2. Inspection (NDT): * Positive Material Identification (PMI): To verify chemical composition of exotic alloys.

   • Radiography (RT) & Dye Penetrant (DP): For casting integrity.

   • Magnetic Particle (MP): For surface crack detection.

3. Testing Standards: * API 598: Standard hydrostatic shell and seat testing.

   • Fugitive Emission Testing: Per API 624 / ISO 15848-1.

   • Cryogenic Testing: Down to -196°C (optional for LNG/Oxygen service).

Why Choose Falcon for Special Grades?

• Deep Metallurgy Experience: Over 20 years of experience handling volatile and corrosive media where material selection is the difference between safety and catastrophe.

• Custom Trim Configurations: We offer API Trims 1 through 18, including Stellite 6 hard-facing for erosion resistance in titanium and nickel bodies.

• Global Compliance: Fully certified to ISO 9001:2015, CE/PED, and Fire Safe standards (API 607).

• Third-Party Inspection: We regularly host inspectors from TUV, DNV, BV, and Lloyd’s for project-specific witness testing.

Specialized Trim Materials (API 600)

Material selection for the "Trim" (Stem, Wedge Face, and Seat Rings) is vital. We match the trim to your specific process media:

• Trim 5 (Full Stellite): For high-pressure steam and abrasive slurries.

• Trim 11 (Monel): Specifically for Hydrofluoric Acid (HF) alkylation units.

• Trim 16 (Stainless Steel/Stellite): Ideal for general corrosive service in chemical plants.

• Titanium Trim: Used in Bleach plants (Pulp & Paper) and high-concentration Chlorides

Manufacturing & Quality Nuances The Casting & Forging Process

For special grades like Titanium and Nickel Aluminum Bronze, the casting process is notoriously difficult due to gas porosity and shrinkage.

• Falcon Advantage: We utilize Vacuum Induction Melting (VIM) or argon-oxygen decarburization (AOD) refined ingots to ensure the purity of our special alloys.

• Heat Treatment: All valves undergo solution annealing or age-hardening in calibrated furnaces to ensure the crystalline structure meets ASTM requirements for ductility and hardness.

Testing & Traceability

• EN 10204 3.1 & 3.2: We provide full 3.1 material traceability as standard; 3.2 (Independent Witness) is available upon request.