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Localization and Performance Optimization of Pneumatic Track Ball Valves for Marine Engineering
May 26, 2025
Abstract In response to the national initiative to localize key equipment for oil and gas pipelines, this paper focuses on the unique operating conditions and technical requirements of marine engineering....
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Impact of Valve Stem Surface Roughness on Packing Sealing Performance: Test Results and Analysis
May 14, 2025
2.1 Test Results and Analysis for Globe Valve Packing The friction and leakage data recorded after 200 reciprocating movements of globe valve stems with varying surface roughness are presented in Table...
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How Stem Roughness Affects Valve Sealing
May 6, 2025
Abstract This study systematically analyzes the impact of valve stem surface roughness and packing type on sealing performance. By testing valve stems with varying roughness levels (Ra 0.2, Ra 0.4, Ra...
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Dynamic Water Closing Test of Ball Valve in High-Head Pumped Storage: Performance Analysis
April 28, 2025
Abstract: The ball valve, a critical component in the pumped storage power station unit, is installed between the pressure steel pipe and the volute to prevent accidents caused by guide vane failure. This...
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Design of a Quality Test Method for Underwater Directional Control Valves
April 19, 2025
Abstract A set of practical quality test methods for underwater directional control valves (DCVs) was developed based on the API STD 17F-2017 standard. The tests cover external pressure, internal pressure,...
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Finite Element Analysis of Titanium Floating Ball Valve Seats
April 9, 2025
Abstract This study investigates a titanium alloy floating ball valve with a nominal diameter of 65 mm. ABAQUS software is used to analyze the shell strength, valve seat sealing, and fatigue life under...
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Troubleshooting of Pneumatic Quick-Closing Ball Valves
April 5, 2025
During the operation of long-distance liquid pipelines in aerospace liquid rocket engine test benches, various factors may lead to failures. A pneumatic valve failure can compromise liquid transportation...
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Flow Field Characteristics and Erosion Mechanisms in Ball Valves with Various Seat Structures
March 31, 2025
Abstract Erosion in ball valves operating in solid particle-laden fluids impacts their reliability and service life. This study investigates the flow field characteristics and erosion mechanisms of metal...
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Materials of Soft-Seated Ball Valve Seats
March 27, 2025
Abstract The soft-seated ball valve is a widely used valve, favored for its fast operation, simple structure, and reliable sealing. The polymer used in the valve seat plays a key role in determining...
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Durability Testing of Soft-Seated Gate Valves for Water Supply and Drainage
March 12, 2025
This study evaluates the durability of soft-seated gate valves used in water supply and drainage systems through comprehensive testing and analysis. Long-term pressure cycling tests, consisting of repeated...
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Fault Analysis of Electric Gate Valve Based on Finite Element Analysis
March 7, 2025
Abstract Gate valves operate in harsh environments involving high pressure, high temperature, and high radioactivity over extended periods, making them prone to damage such as yielding, buckling, and...
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Research on Cavitation Suppression in V-Type Control Ball Valves
February 12, 2025
The V-type control ball valve is widely used in industries such as petrochemical, metallurgy, and electric power due to its simple structure, excellent sealing performance, and high precision in flow...
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Total 175 Records, 12 records per page