Forged ASTM B564 UNS N08825 Inconel Check Valves

Falcon Forged UNS N08825 (Alloy 825) Check Valves

Falcon Alloy 825 check valves are engineered for automatic protection against flow reversal. By utilizing the unique Nickel-Iron-Chromium chemistry of Alloy 825, these valves remain functional and corrosion-free in environments that would typically cause standard valves to seize or leak.

Available Types of Falcon Check Valves

We offer three primary configurations to suit different flow velocities and piping orientations:

1. Piston (Lift) Check Valves

• Design: Utilizes a forged piston that "lifts" off the seat via fluid pressure.

• Best For: High-pressure gas or liquid service in smaller pipelines (typically up to 2").

• Feature: Usually spring-loaded to ensure rapid closure and prevent "slamming."

2. Swing Check Valves

• Design: Features a hinged disc that swings open with forward flow and closes when flow stops.

• Best For: Full-flow applications where low pressure drop is required.

• Feature: Designed with an internal hinge pin to minimize leak paths to the atmosphere.

3. Ball Check Valves

• Design: Uses a free-moving forged Alloy 825 ball to seal against the seat.

• Best For: Highly viscous fluids or applications where "chattering" is a concern.

• Feature: Exceptionally simple design with minimal moving parts for long-term reliability.

Key Features & Design Standards

• Forged Construction: Manufactured to ASTM B564, ensuring a rugged, high-density body that eliminates the risk of "pinhole" leaks common in castings.

• Gravity & Spring Assisted: Precision-calibrated springs ensure the valve closes the moment flow velocity drops, protecting upstream pumps.

• Metal-to-Metal Seating: Precision-lapped seats provide a tight seal even in high-temperature and high-acid environments.

• Zero-Leakage Sealing: Compliant with API 598 pressure testing requirements.

Technical Specifications

Common Applications

• Chemical Injection Lines: Preventing chemicals from backing up into the supply pumps.

• Desalination High-Pressure Pumps: Protecting expensive reverse osmosis (RO) pumps from back-pressure.

• Sour Gas Processing: Preventing H2S gas migration during system shutdowns.

• Offshore Scrubber Systems: Handling corrosive seawater and acidic condensates.

Falcon Quality Assurance: Integrity You Can Trust

At Falcon, quality is the cornerstone of our manufacturing process. Our UNS N08825 (Alloy 825) check valves are designed and tested to meet the stringent demands of the global energy and chemical sectors, ensuring they act as a fail-safe barrier against backflow in the most aggressive media.

1. Material Integrity & Verification

• PMI (Positive Material Identification): Every valve body, cover, and internal component is verified using X-ray fluorescence (XRF) to ensure the Nickel (38–46%), Chromium (19.5–23.5%), and Molybdenum (2.5–3.5%) content exactly matches the UNS N08825 specification.

• ASTM B564 Forging Standards: We exclusively use forged blanks that are free from the porosity and structural defects common in cast alternatives.

• Full Traceability: Each valve is stamped with a heat number and accompanied by an EN 10204 3.1 Mill Test Certificate (MTC).

Specialized Performance Testing (Optional)

For critical or "severe service" applications, Falcon provides advanced testing options:

• Fugitive Emission Testing: To ISO 15848-1, ensuring the cover-to-body seal meets environmental safety standards.

• NACE MR0175 / ISO 15156 Compliance: Verification that the valve is resistant to Sulfide Stress Cracking (SSC) for "sour" gas service.

• Dye Penetrant Testing (DP): Non-destructive testing on all forged surfaces to ensure the absence of surface cracks or fissures.

The Falcon Quality Commitment

We understand that a check valve failure can lead to catastrophic pump damage or hazardous leaks