Precision-cast forged steel valve body providing structural integrity and fluid containment in industrial valve systems.
A body casting is the primary structural component of a forged steel valve, manufactured through precision casting processes to create complex internal passages and mounting surfaces that direct, control, or regulate fluid flow in industrial piping systems. This component withstands high pressures, temperatures, and corrosive environments while maintaining dimensional stability and leak-proof performance.
诱因 → 失效模式 → 工程缓解
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Cast bodies are formed by pouring molten metal into molds, allowing complex internal geometries, while forged bodies are shaped by hammering/pressing solid metal, offering superior grain structure for high-pressure applications. Forged steel valve bodies typically refer to valves made from forged steel materials, though the body itself is often cast.
Body castings undergo non-destructive testing including radiographic examination (RT), liquid penetrant testing (PT), ultrasonic testing (UT), and pressure testing per API 598. Material certification and heat treatment verification are also required.
Material selection depends on service temperature, pressure, fluid corrosivity, and industry standards. Carbon steel (WCB) is common for general service, while stainless steels (CF8/CF8M) handle corrosive fluids, and alloy steels (WC6/WC9) suit high-temperature applications.
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