Metal Flanged Ball Valve

Zhejiang Chenxiang Valve Co., Ltd. offers our worm gear metal sealed trunnion flanged ball valve for the most demanding industrial applications. Coal-fired power plant ash removal systems, coal chemical gasifiers, and mining ore processing lines handle media with hard particles. These applications also involve high temperatures and high pressure differentials. Regular soft-sealed ball valves often fail within just a few weeks under these conditions. Our worm gear metal flanged ball valve is specifically designed to handle such extreme conditions. The valve seat and ball surface are overlaid with Ni60, STL, or WC hard alloy. WC tungsten carbide overlay can reach a hardness of HRC70 or above. This extreme hardness effectively resists erosion from high-hardness particles. The trunnion design keeps the ball stable under high pressure differentials. This maintains the sealing pair contact and prevents leakage. This product serves power generation, mining, metallurgy, coal chemical, and building materials industries. It handles particle-laden flue gas, slurry, pulverized coal, fly ash, slag, and various high-temperature dust-laden gases. Our model is Q347Y.

Our worm gear metal flanged ball valve uses body materials such as A105, F304, F316L, LF2, F11, F22, F53, F55, 4A, 5A, Inconel, Monel, 2205, 2507, 904L, copper alloy, titanium alloy, Hastelloy, and nickel alloy. The drive is worm gear. Connections are RF, FM, G, M, or RTJ. The structure is a trunnion ball valve. This model has no soft seal materials. Hard seal materials are Ni60, STL, WC, and CRC. We have specialized hardfacing grinding equipment in our factory. Our workers use manual grinding techniques to finish the mating surfaces of the ball and seat. These techniques require over three years of practical experience to master. We ensure the sealing surface contact rate reaches over 85% for our worm gear metal flanged ball valve. Each valve undergoes both low-pressure and high-pressure seal tests before shipment. We randomly check the hardness of each batch of overlay parts and keep records. This ensures consistent quality across all production.

Chenxiang Valve holds ISO quality management certification. Our hardfacing welding process follows standard operating procedures with full documentation. Each worm gear metal sealed trunnion flanged ball valve has a unique serial number. We maintain complete test records for every valve. We provide a 1-year warranty. Export products use wooden case packaging. Trade terms are EXW and FOB. Choose our worm gear metal sealed trunnion flanged ball valve for long service life in your most extreme abrasive applications.