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Common Valve Failures in Petrochemical Applications and How to Avoid Them

Jul. 11, 2025

In petrochemical plants, valves must withstand high pressure, high temperature, corrosive media, and complex flow dynamics. Yet, valve failures remain one of the leading causes of unplanned shutdowns and safety incidents in the industry. This article explores the most common valve failures in petrochemical applications and how to avoid them by choosing the right solutions—backed by Yuanda Valve Group's robust engineering, quality materials, and manufacturing standards.


1. Leakage (Internal or External)

Causes:

  • Seat or seal wear

  • Corrosion, erosion, or improper material selection

  • Improper installation or thermal expansion

Yuanda Solution:

  • Use Yuanda API 600 Cast Steel Gate Valves and ANSI/GB Standard Globe Valves with metal-seated or graphite-sealed structures for high-integrity sealing

  • Choose corrosion-resistant trims such as 13Cr, CF8M, or Stellite

  • Yuanda valves undergo 100% pressure and tightness testing to ensure zero-leak performance

API600 Cast steel OS&Y Gate valve 150#-900#

2. Erosion & Cavitation

Causes:

  • High-velocity flow

  • Throttling without proper design

  • Abrasive or corrosive fluids

Yuanda Solution:

  • Specify control-grade Globe Valves with erosion-resistant seats

  • For critical flows, Yuanda offers custom hard-facing trim or multi-stage throttling design

  • Use API 6D Ball Valves with hard-coated or full-bore design to reduce turbulence