Best Practices for Steam Control Valve Installation
Step 11: Bypass Valve or Warm Up Valves
Bypass valves and warm up valves should be used in control valve installation. In an application of pressure reduction, the warm up valve is used to warm the steam line, within recommended time frames, before the control valve is placed into operation. A steam control valve should not be used for warm up of a steam distribution line. Additionally, the by-pass valve is used in a process application to allow plant personnel to operate the process without the control valve, if valve failure occurs.