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Design and Application of Control Valves in Hydroprocessing Units

Oct 09, 2025

Abstract With increasingly stringent environmental regulations limiting pollutants such as sulfur, heavy metals, and polycyclic aromatic hydrocarbons, hydroprocessing has become a widely adopted process...

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Processing Thin-Walled Parts for Large-Diameter Soft-Seated Butterfly Valves

Sep 29, 2025

Abstract As the processing capacity of petrochemical equipment continues to expand, the size and specifications of flue butterfly valves used in catalytic units have increased accordingly. With advancements...

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High-Performance NiCr Corrosion-Resistant Ductile Iron Butterfly Valves

Sep 17, 2025

Abstract: By adding nickel (Ni) and chromium (Cr) to molten iron during spheroidization and inoculation, this study developed a low-NiCr corrosion-resistant ductile iron with outstanding performance. The...

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Optimized Design and Performance of Electric Gate Valves for Nuclear Power Plants

Sep 09, 2025

Abstract: To address frequent sealing failures and slow actuation of electric gate valves in nuclear power plants, a remote structural and performance optimization approach is proposed. A dual-pass...

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L Type Three-Way Ball Valves for Natural Gas Reversing in Glass Melting Furnaces

Sep 09, 2025

Abstract: This study examines the use of a single "L"-type three-way ball valve in the reversing unit of a pair of small furnaces, replacing the two straight-through ball valves traditionally...

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Design of a Split-Compensating Ball Valve

Aug 28, 2025

Abstract: The split-compensating ball valve is a sealing valve with automatic compensation, designed to meet the stringent requirements for toxic and hazardous service conditions. Its design...

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Optimizing DLC Coatings for Hardness and Low Friction on Nuclear Valve Stems

Aug 24, 2025

Abstract: This study investigates the effects of varying deposition process parameters, such as workpiece bias voltage and W-doped target power, on the performance of DLC coatings applied to valve...

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Structural Design Optimization of Ultra-High-Pressure Ball Valves

Aug 08, 2025

Abstract: This article details the structural design optimization of a domestically produced ultra-high-pressure (UHP) ball valve utilized in a national oil and gas field project. It outlines...

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Water Pressure Management Valves: Performance and Use

Aug 06, 2025

With rapid urbanization, the stability and safety of water supply systems have become increasingly critical. As essential components of these systems, valves play a key role in ensuring operational efficiency...

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Impact of Bonnet Flange Thickness on Control Valve Strength: A Finite Element Study

Jul 09, 2025

Abstract: This study analyzes the effect of flange thickness on control valve bonnet strength using finite element analysis, comparing stress distributions in one-piece and split bonnet designs. The...

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Root Cause Analysis of Cracking in Welded Flange Globe Valve Bodies

Jul 04, 2025

Abstract: This study investigates suspected crack defects in the valve body of a welded flange globe valve used in a process station. The root causes of cracking were analyzed through chemical...

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Low-Temperature Leakage in Metal-seated Ball Valves: Causes and Countermeasures

Jun 25, 2025

Abstract: This paper investigates the failure mechanisms of metal-seated ball valve seals under low-temperature conditions and examines how factors such as deformation and shrinkage of sealing materials,...

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