Cast Steel Globe Valves: Precision Guardians of Industrial Fluid Control

2025-06-13

In industrial pipeline systems, cast steel globe valves stand as core components for fluid control, renowned for their exceptional flow - intercepting and regulating capabilities. Constructed with high-strength cast steel, they are well - adapted to complex working conditions, including high temperatures, high pressures, and corrosive environments.

In terms of structure, the valve body and bonnet are fabricated from high - quality cast steel grades such as WCB and WC6. After heat treatment, they exhibit high strength and impact resistance. The sealing surfaces of the valve disc and seat undergo precise grinding, and in some cases, Stellite alloy is overlay - welded to form a reliable sealing pair. The trapezoidal - threaded valve stem, paired with a copper alloy nut, ensures stable and wear - resistant transmission. During operation, the valve stem drives the disc to move vertically. The "low - inlet, high - outlet" flow design utilizes medium pressure to enhance the sealing effect, ensuring a tight shut - off when closed.

Regarding performance, cast steel globe valves offer precise flow regulation, making them suitable for scenarios such as steam pressure reduction and chemical raw material proportioning. Their metal hard - sealing structure enables them to handle media containing particles and withstand high - temperature environments, resulting in a long service life. Additionally, the upper sealing design guarantees no leakage at the valve stem when the valve is fully open. These valves play a crucial role in ensuring the stable transportation of fluids in various applications, including high - temperature pipelines in the petrochemical industry, steam pipelines in power systems, and urban heating networks.

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