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Flange Leakage: Causes and Solutions
- Posted: 08/18/2026 05:08:50
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Understanding Flange Leakage in Piping Systems The Importance of Flange Connections In industrial piping systems, flange connections play a critical role in equipment connection, pipeline assembly, and fluid sealing. They are widely used in industries such as oil and gas, chemical processing, power...
Welding Techniques for Neck Flanges
- Posted: 08/03/2026 03:08:17
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Understanding Neck Flanges Neck flanges are widely used in industrial piping systems where reliable mechanical connections, pressure resistance, and long-term sealing performance are important. Compared with simpler flange designs, a neck flange incorporates a raised neck that provides additional structural...
Large Flange Pressure Requirements: Key Design Factors
- Posted: 07/29/2026 04:07:27
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Introduction: Understanding Pressure Requirements for Large Flanges Large flanges are essential components in modern industrial piping systems, especially in industries requiring reliable connections under demanding operating conditions. From oil and gas pipelines to chemical processing plants, power...
Large Flange Ring Manufacturing: Processes, Technologies, and Industry Trends
- Posted: 07/29/2026 01:07:44
- Hits: 8
Introduction Large flange rings are among the most important forged components used in modern heavy industries. They serve as critical connecting elements in pipelines, pressure vessels, offshore platforms, wind turbines, shipbuilding, petrochemical facilities, aerospace equipment, and other demanding...
Analysis of Loading-Port Flange Leakage in a Reactor Coolant Purification Resin Bed of a Power Plant
- Posted: 02/28/2026 03:02:48
- Hits: 41
Abstract This study investigates leakage at the loading-port flange of a mixed-resin bed in a power-plant reactor coolant purification system. The bolt tightening torque was verified, and the tightening procedure, flange geometric parameters, and gasket strength test data for both new and previous batches...
Structural Design and Strength Analysis of a Deepwater Riser Suspension Flange
- Posted: 01/24/2026 11:01:14
- Hits: 27
Abstract Based on practical engineering requirements and with reference to relevant codes, standards, and manufacturing experience, this study designs the structural dimensions of a deepwater riser suspension (anchoring) flange. Subsequently, a three-dimensional finite element model is established...
Analysis of Heat Dissipation Losses in High-Temperature Flanges and Pipelines Used in Oil Refineries
- Posted: 12/29/2025 10:12:21
- Hits: 69
Abstract: High-temperature flanges and pipelines are critical components in oil refinery operations. Using a wax oil hydrocracking unit as a case study, this paper calculates and analyzes the heat dissipation losses of high-temperature reactor flanges and pipelines. The results indicate that...
Failure and Crack Analysis of an EO/EG Unit Tower Inlet Flange
- Posted: 10/31/2025 01:10:58
- Hits: 55
Abstract: A flange on the feed line of the ethylene glycol dehydration tower in the EO/EG unit of a petrochemical plant experienced fracture failure. To identify the cause of the failure, a comprehensive analysis was conducted, including macroscopic observation, hardness testing, chemical...
Pipe Flange Bolt Tightening in LNG Projects: Key Considerations
- Posted: 08/27/2025 05:08:03
- Hits: 289
Abstract: Using the LNG unloading pipeline at a receiving terminal as an example, this article examines the calculation of flange bolt preloading torque and the requirement for secondary tightening during the pipeline pre-cooling process. Applying a proper preload torque effectively prevents...
Ultrasonic Testing of High-Neck Flange Welds
- Posted: 08/27/2025 10:08:09
- Hits: 119
High-neck flanges used in enameled reactors are typically made from hot-rolled steel sections that are bent, welded, heat-formed, annealed, and finally machined. The steel grade used is 10 steel, and 422 welding rods are employed. To ensure weld quality, all high-neck flange welds must undergo...
Underwater Flange Connection Methods for Submarine Pipelines
- Posted: 05/27/2025 11:05:46
- Hits: 265
Abstract Underwater flange docking is an essential part of submarine pipeline installation. Improving the efficiency of this process is crucial for reducing the overall cost of submarine pipeline projects. This study examines flange docking methods under varying marine environments and conditions. It...
Key Technologies for Pressure Vessel Testing and Flange Connection Design
- Posted: 05/13/2025 10:05:14
- Hits: 136
Abstract Flanges are a common method used in assembling pressure vessels. Conducting in-depth research on the various types of flange joints and the key technologies involved in pressure testing is essential to ensure the safe and reliable operation of these vessels. This study examines the design,...