Video flashing control valve erosion. See full list on instrumentationtools.



Video flashing control valve erosion. In this video, Mark examines two valves that have experienced significant damage during operation. Metal erosion caused by flashing is smooth and shiny in appearance. High Pressure Control Valve Erosion (Stem Guided) During both flowback and normal production, frac sand is present in fluid coming from the well. Flashing is a concern because it limits flow through the control valve and the liquid-vapor mixture is highly erosive. Flashing occurs when the pressure of a liquid drops below its vapor pressure, causing it to vaporize as it flows through the valve, leading to erosion and wear on valve components. To Jan 19, 2023 · Angle and globe valve flashing solutions stand to significantly increase control valve service life and alleviate costly erosion issues, says an industry expert. The video explains the process of cavitation and flashing development in control valves and the main methods for fighting and reducing the damage of them on the valve internals. Since flashing cannot be prevented by the valve, it’s best to select a valve with proper geometry and materials to avoid or minimize damage. Conversely, cavitation happens when vapor bubbles formed from flashing collapse downstream of the valve seat in a liquid phase, causing shock waves that can damage valve parts and connected piping systems. com Nov 26, 2018 · When flashing occurs, no solution can be designed into the valve, such as is the case with anti cavitation or cavitation-control trim, except to offer hardened trim materials Body Material: The flashing process can cause body erosion that may reduce the body’s wall thickness to less than required by codes. See full list on instrumentationtools. Flashing caused by pressurized steam is a destructive phenomenon that occurs in many industries. When controlling steam flow, flashing can take place, and when this happens it can result in severe erosion and damage to the valve . He explains what happened and identifies solutions to prevent or slow future damage. htaem vhctyki tuiptw lyzpha fymchl lccqa ydt ahkka ljuahel bnjddcw