Maximizing Flow and Ensuring Leak Tightness Through Design and Development of a Unidirectional Check Valve

Year : 2024 | Volume : 02 | Issue : 02 | Page : 10 18
    By

    Sachin S.,

  • P.V. Srihari,

  1. Postgraduate Student, Department Mechanical Engineering, R.V. College of Engineering, Bengaluru, Karnataka, India
  2. Associate Professor, Department Mechanical Engineering, R.V. College of Engineering, Bengaluru, Karnataka, India

Abstract

The check valve market, valued at USD 6.5 billion in 2024, is expected to grow at a 4.1% CAGR. Challenges in valve seat materials, particularly SS304 and PTFE (Teflon), contribute to a 0.5% leak rate, which leads to helium gas loss, reduced efficiency, and higher operational costs. While various sealing techniques, including hard-on-soft methods, have been explored, few have been applied to poppet check valves. This study focuses on improving sealing capacity with a hard-on-soft seat design to create a unidirectional valve capable of supporting a 5 g/s flow rate at 7 bar, with a leak tightness below 1×10-4 scc/s. The valve was designed in Fusion 360, utilizing SS304 and Teflon for key components like the seat and poppet. Leak testing, conducted at 5 g/s and 7 bar, used a Helium Leak Detector (HLD 550 Pfeiffer) and confirmed a minimal leak rate of 1.1 × 10⁻⁴ scc/s. CFD simulations in ANSYS 2024 R1 were performed to analyze fluid flow, pressure distribution, and valve efficiency, achieving 90% accuracy with stable residuals. Both experimental testing and CFD analysis supported the valve’s enhanced sealing and reverse flow prevention. Future work may involve advanced wear-resistant coatings, alternative spring designs, and automated leak detection systems to improve durability, responsiveness, and production efficiency

Keywords: Unidirectional check valve, leak tightness, SS304, PTFE, flow optimization, CFD simulation.

[This article belongs to International Journal of Industrial and Product Design Engineering ]

How to cite this article:
Sachin S., P.V. Srihari. Maximizing Flow and Ensuring Leak Tightness Through Design and Development of a Unidirectional Check Valve. International Journal of Industrial and Product Design Engineering. 2024; 02(02):10-18.
How to cite this URL:
Sachin S., P.V. Srihari. Maximizing Flow and Ensuring Leak Tightness Through Design and Development of a Unidirectional Check Valve. International Journal of Industrial and Product Design Engineering. 2024; 02(02):10-18. Available from: https://journals.stmjournals.com/ijipde/article=2024/view=192344


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Regular Issue Subscription Original Research
Volume 02
Issue 02
Received 27/10/2024
Accepted 30/11/2024
Published 01/12/2024
293

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