Forged ASTM B564 UNS N08825 Inconel Globe Valves

Falcon Forged UNS N08825 (Alloy 825) Globe Valves

Falcon Globe Valves are purpose-built for high-precision flow regulation and frequent operation in highly corrosive environments. Manufactured from premium Nickel-Iron-Chromium-Molybdenum-Copper alloy, these valves provide the "Gold Standard" in durability for acid-handling and sour-gas applications.

1. Advanced Design Features

• Throttling Excellence: Designed with a spherical body and a contoured plug-type disc, allowing for fine-tuned flow control and minimal seat erosion during partial opening.

• Outside Screw & Yoke (OS&Y): The stem threads are isolated from the process media, preventing thread corrosion and ensuring smooth operation even in harsh chemical environments.

   

   

• High-Integrity Sealing: Features a tapered, metal-to-metal seat, precision-lapped to achieve a bubble-tight shutoff and prevent "wire-drawing" of the seal.

• Integral Backseat: Allows for stem packing replacement while the valve is in service, enhancing safety and reducing downtime.

2. Manufacturing Process

• Precision Forging (ASTM B564): Unlike casting, which can leave internal voids (porosity) and brittle structures, Falcon’s forging process compresses the alloy. This creates a continuous, directional grain flow that follows the contours of the valve body, resulting in maximum impact strength and fatigue resistance.

   

   

• Stabilized Metallurgy: Our Alloy 825 is titanium-stabilized during the forging process to prevent intergranular corrosion in the heat-affected zones (HAZ) after welding.

• CNC Machining: All critical tolerances, including the seat and stem threads, are finished on high-precision CNC centers to ensure 100% interchangeability of parts.

3. Rigorous Testing & Quality

At Falcon, quality is verified, not just promised. Each Globe Valve undergoes a multi-stage testing protocol:

• Hydrostatic Shell & Seat Test: Performed at 1.5x and 1.1x the rated pressure respectively, according to API 598 standards.

• Fugitive Emission Testing: Available for critical service to ensure zero leakage from the stem packing (ISO 15848-1 compliance).

• Positive Material Identification (PMI): Every single valve body and bonnet is verified via X-ray fluorescence to ensure the exact chemical composition of Alloy 825.

• Dye Penetrant Inspection: All forged surfaces are inspected for surface irregularities to guarantee a defect-free finish.

Technical Summary

Key Industrial Applications for Falcon Alloy 825 Globe Valves 1. Chemical Processing & Acid Handling

The most critical application for Alloy 825 globe valves is in the regulation of highly corrosive acids.

• Sulfuric Acid Plants: Used in the concentration and piping of sulfuric acid, where the alloy's resistance to "reducing" environments is vital.

   

   

• Phosphoric Acid Production: Essential for throttling flow in fertilizer production lines where phosphoric acid causes severe pitting in standard stainless steels.

• Pickling Lines: Regulating the flow of heated acid baths in steel mills and metal finishing plants.

2. Oil & Gas (Sour Service & Midstream)

In the energy sector, these valves manage fluids that are both high-pressure and chemically "sour."

• Gas Dehydration Units: Regulating the flow of glycols and other chemicals used to remove water from natural gas.

• Sour Gas Throttling: Managing the flow of gas containing high concentrations of $H_2S$ and $CO_2$, where resistance to Sulfide Stress Cracking (SSC) is required.

• Acid Gas Injection: Used in carbon capture and storage (CCS) and enhanced oil recovery.

4. Marine & Offshore Engineering

• Desalination Plants: Precise control of high-salinity brine flow. The globe valve’s ability to throttle is critical for maintaining pressure across desalination plant