Ladhani Metal Corporation manufactures and exports Half Round Shields for Economizer Tubes, designed to protect tubes operating in the economizer section of boilers. Economizer tubes are exposed to erosive flue gases, abrasive fly ash, and high-velocity particle flow that can cause localized wear and surface thinning. Half Round Shields serve as sacrificial barriers, preventing premature tube failures, extending service life, and ensuring reliable boiler operation with reduced maintenance downtime. Function of Economizer Tubes • Preheat feedwater using residual flue gas heat before it enters the boiler drum • Continuously exposed to ash-laden flue gases at medium-to-high velocities • Require shielding in high-impact zones to prevent erosion and metal loss Ladhani Metal Corporation manufactures, supplies, and exports Half Round Shields for Economizer Tubes in various lengths, diameters, thicknesses, and geometries to suit diverse boiler layouts across domestic and international markets. Available Grades • SS 304 / SS 304L • SS 310 / SS 310S • SS 316 / SS 316L • SS 410 / SS 420 / SS 430 • 1Cr13 • 1Cr18Ni9Ti • 1Cr20Ni14Si2 • 1Cr25Ni20Si2 • Cr23Ni13 • Cr25Ni20 Applications: Widely used in thermal power plants, industrial boilers, waste heat recovery boilers (WHRBs), and heat recovery steam generators (HRSGs). Uses • Protects economizer tubes from erosion and abrasive ash particles • Guards against oxidation and surface scaling in flue gas paths • Reduces tube maintenance and replacement frequency • Ensures longer service life of economizer components in power plants and industrial boilers Features • Excellent resistance to erosion, oxidation, and scaling • Superior durability in medium-to-high temperature boiler atmospheres • Precision-engineered fit for secure installation on economizer tubes • Available in stainless steel and high-performance alloy grades Applications • Power generation boilers – Shielding economizer tubes against flue gas erosion • Waste heat recovery boilers – Durable protection in abrasive gas zones • Heat recovery steam generators – Reliable in cyclic temperature operations • Industrial boilers – Cost-effective solution for prolonging tube life Conclusion The Half Round Shield for Economizer Tubes from Ladhani Metal Corporation offers reliable, long-lasting protection against erosion and oxidation in high-velocity gas environments. Manufactured in stainless steel grades SS 304/304L, SS 310/310S, SS 316/316L, SS 410/420/430, and special alloys such as 1Cr13, 1Cr18Ni9Ti, 1Cr20Ni14Si2, 1Cr25Ni20Si2, Cr23Ni13, and Cr25Ni20, these shields are engineered for precision, durability, and export-quality performance in boilers worldwide.
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