BNL’s 3-piece design InLine Check Valve offers the best combination of benefits for critical service in nuclear power plants. Available in commercial grade, ASME B31.1, ASME B16.34, or with ASME Section III N-Stamp; the valve design can be configured for special processes when required. The InLine Check Valve provides the user a simple, reliable answer for difficult applications.

The InLine Check Valve conforms to the axial flow model, utilizing a light spring to assist valve closure, avoiding the potential for water hammer. The internal dynamics of this style valve involve a minimum mass movement, resulting in less wear and longer life for valve internals than swing and lift check designs. The InLine Check Valve offers the versatility of metallic or non-metallic seating, providing for tight shutoff in all applications.

Applications:

• Service Water
• Reactor Plant Fresh Water
• Diesel Air
• Reactor Water Cleanup
• Radioactive Waste
• Chiller Temperature Control
• Containment Airlock
• Vacuum Breaker
• Chemical Injection Systems

Benefits:

• Tight Shutoff - Even at low differential pressures (dP). Valves are tested and inspected for bubble tight seal prior to shipment
• Easy Servicing - The removable center section and four internal parts ensure quick access and minimal maintenance.
• No Slam Design - The axial flow design ensures closure prior to flow reversal, avoiding check valve slam and water hammer.
• Self-Flushing - The InLine Check Valve is self-flushing and will not “gum up” and hang open, a common problem with piston checks.
• Reliability - There are no worn or broken hinge pins or misaligned discs, common causes of swing check valve failures.