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LIFE ASSESSMENT OF VALVE COMPONENT SUBJECTED TO INTERNAL PRESSURE LOADING

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Case Study Highlights

LIFE ASSESSMENT OF VALVE COMPONENT 

Client Profile:

  • Process Equipment Manufacturer, Australia

Objective:

  • Analyzing valve component subjected to internal pressure for fatigue cyclic loading

Challenges:

  • Determining loading conditions to perform static structural analysis
  • Obtaining accurate S-N curve to estimate fatigue lifecycle
  • Selecting suitable elements in meshing to capture accurate deformation

Solution:

  • The finite element analysis to estimate fatigue lifecycle of the valve component was performed. The results based on the S-N curve showed that the valve component design was found to be safe for 14000 pressure loading cycles.
  • Control valves in process industries are often subjected to cyclic pressure loadings causing premature failure, leading towards frequent replacement. As such, designing the valves require considering the effects of fatigue loading cycle to evaluate its lifecycle.
  • Process equipment manufacturer from Australia approached Australian Design and Drafting Services to seek assistance in evaluating the design of their newly developed valve component subjected to internal pressure loading cycles using simulation techniques.

The Solution Life Assessment of Valve Component

  • The valve component was analyzed using finite element method to determine the structural strength against the internal pressure loading. In order to assess the fatigue lifecycle, the data from the S-N curve for the component material was utilized. The results showed that the mean stress value during 14000 pressure loading cycles was well within the acceptable range. Hence, the valve component design was predicted to behave safe during the expected lifecycle without premature failure.

Benefits VALVE COMPONENT

  • Considerably reduced prototyping trials to evaluate useful lifecycle of the component
  • Better insights on design modifications for alternate applications
  • Reduced manufacturing time

About Australian Design And Drafting Services

Australian Design and Drafting Services is a specialist firm providing engineering solutions to organizations across the globe. We have extensive experience in providing concept to manufacturing and post-manufacturing solutions to clients with a team of expert design engineers, CAD professionals and simulation analysts. We are based in Australia, serving 24×6, with a world-class infrastructure, hardware and software capabilities to address complex engineering problems with least turn around time.

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Life Assessment of Valve Component

Life assessment of valve components refers to the process of evaluating the remaining useful life or predicting the expected lifespan of valve components used in industrial applications. Valve components, such as valve bodies, stems, seals, and seats, undergo wear and degradation over time due to factors like fluid flow, pressure, temperature, and operational cycles. The life assessment helps determine the condition of these components and enables informed decisions regarding maintenance, repair, or replacement. Here are some key aspects of the life assessment of valve components:

Life Assessment of Valve Component

  1. Inspection and Condition Assessment: The assessment begins with a thorough inspection of the valve components to identify any signs of wear, corrosion, erosion, cracks, or other forms of damage. Visual inspection, non-destructive testing (NDT) techniques, and measurement tools may be employed to evaluate the condition of the components.
  2. Operating Environment Analysis: The assessment considers the specific operating conditions of the valve components, including fluid properties, flow rates, pressure levels, temperature variations, and frequency of use. These factors affect the wear mechanisms and degradation processes experienced by the components.
  3. Material Analysis: The material composition and properties of the valve components are examined to understand their resistance to wear, corrosion, and fatigue. Material testing and analysis help determine the expected degradation rate and potential failure mechanisms.