Masoneilan LincolnLog: Best Anti-Cavitation Valve for Boiler Feed Pumps

In thermal power plants, boiler feed pump minimum flow valves face extreme challenges: high differential pressures, rapid flow rates, and risks of cavitation, flashing, and erosion. These conditions often cause internal leakage, sealing damage, vibration, and frequent maintenance—driving up operational costs and downtime.

A successful retrofit in a large-scale supercritical power unit replaced traditional multi-stage cage-guided valves with the Masoneilan LincolnLog high-pressure anti-cavitation control valve. The original valves suffered severe erosion at low openings, leading to plug damage and persistent leakage despite repairs. Post-retrofit, the Masoneilan LincolnLog has delivered years of reliable, leak-free performance with exceptional stability.

The Masoneilan LincolnLog (78400/18400 Series) is engineered for severe liquid service, particularly minimum flow recirculation lines. Its unique axial flow design outperforms conventional cage-guided valves in anti-cavitation performance.

• Axial flow path with contoured 3D channels and full-stroke guiding.
• Six pressure drop mechanisms: compression, expansion, turning, merging, splitting, and uniform multi-stage throttling.
• Evenly distributes pressure across stages, preventing localized drops that cause cavitation.
• Reduces noise, vibration, and erosion for longer service life.

• Spacious internal design resists clogging from debris, weld slag, or particles—common in recirculating fluids.
• Ensures reliable operation in impure media, faster response times, and better pump protection.

• Optional balance holes minimize thrust requirements under high ΔP.
• Enables smaller actuators, improves stability, and reduces thermal deformation for superior shutoff.

• Dedicated 15% initial stroke buffer with minimal resistance.
• Low velocity at small openings prevents erosion on plug and seat, maintaining Class VI tight shutoff long-term.

• Hardened full-length guiding resists vibration damage.
• Flow-to-open characteristic lowers actuator sizing needs.
• Flexible 3-, 4-, or 6-stage configurations with optimized inter-stage ratios.
• Keeps fluid pressure above vapor pressure at every throttle point—completely eliminating cavitation.

Masoneilan LincolnLog - High pressure Anti-cavitation Control Valve

Traditional valves often fail due to concentrated pressure drops, flashing, and debris. The Masoneilan LincolnLog excels with:

• Superior energy dissipation via axial multi-stage paths.
• Minimal components for easy inspection and maintenance.
• Proven durability in high-pressure recirculation service across power generation.

Xiangjing (Shanghai) M&E Technology Co., Ltd. has over ten years of specialized experience with Masoneilan products. As an authorized partner, we offer a comprehensive range of genuine Masoneilan control valves, including the LincolnLog series—100% original and authentic.

We provide expert technical support, competitive quotations, customized selection advice, and full after-sales service to ensure optimal performance in your severe service applications.

For Masoneilan LincolnLog, boiler feed pump recirculation valves, or any Masoneilan severe service solutions, contact Xiangjing today for reliable, cost-effective upgrades that minimize downtime and extend equipment life.

Keywords: Masoneilan LincolnLog, Masoneilan anti-cavitation valve, boiler feed pump minimum flow valve, Masoneilan control valves, high pressure recirculation valve, severe service control valve, Masoneilan retrofit solutions.