2″-2500LB Inconel 625 Lift Check Valve

TECHNICAL DATA SHEET

Product: Lift Check Valve
Size: 2 inch (DN50)
Pressure Class: Class 2500
Body Material: Inconel 625 (UNS N06625)
End Connections: Flanged – ASME B16.5 Class 2500
Design: Lift Check (Piston Type)

1. Basic Specifications

2. Main Features

• Lift Check Design: Disc lifts vertically off the seat under forward flow and drops back when flow reverses, providing reliable backflow prevention.
• Inconel 625 Construction: Full Inconel 625 body and trim offer exceptional resistance to pitting, crevice corrosion, stress corrosion cracking, and high‑temperature oxidation. Ideal for sour service (NACE MR0175), seawater, and aggressive chemical environments.
• High‑Pressure Capability: Class 2500 rating with flanged ends suitable for ultra‑high‑pressure systems.
• Pressure Seal Bonnet: Ensures leak‑tight performance under fluctuating high temperatures and pressures.
• Renewable Seat & Disc: Seat and disc hardfaced with Stellite 21 for extended service life and ease of maintenance.
• Compact Design: Lift check valves offer a shorter face‑to‑face length compared to swing check valves.

3. Material List (Specified Configuration)

Note: Full Inconel 625 construction avoids galvanic corrosion issues common with dissimilar materials.

4. Dimensions & Structural Data (Flanged Ends)

Note: Final dimensions to be confirmed by manufacturing drawings.

5. Design & Testing Standards

6. Inconel 625 Material Advantages

7. Operating Guidelines

• Orientation: Lift check valves are typically installed in horizontal pipelines with the bonnet vertical, or in vertical lines with flow upward.
• Cracking Pressure: Standard cracking pressure is typically 0.5 – 1.0 psi (0.03 – 0.07 bar). Spring‑assisted designs are available for vertical installation or low‑pressure applications.
• Flow Characteristics: Minimal pressure drop when fully open, as the disc lifts completely out of the flow path.

8. Typical Applications

• Subsea & Offshore: High‑pressure subsea manifolds, Christmas trees, and topside piping in seawater service.
• Sour Service: Oil & gas production with high H₂S and CO₂ content (NACE MR0175 compliance).
• Nuclear Power: High‑temperature steam and feedwater systems.
• Chemical Processing: Corrosive chemical plants handling acids, chlorides, and high‑temperature fluids.
• Hydrogen Service: High‑pressure hydrogen systems requiring nickel alloy construction to prevent hydrogen embrittlement.

9. Ordering Information

When ordering, please specify:

• Size & Pressure Class: 2″ – Class 2500
• Body Material: Inconel 625
• End Connections: Flanged (RTJ) – ASME B16.5 Class 2500
• Bonnet Type: Pressure Seal
• Optional Features: Spring‑assisted disc (for vertical or low‑pressure applications)

This data sheet reflects the flanged connection configuration. For butt weld ends or additional customizations, please contact us with your specific requirements.

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.