Pressurizer : Nuclear Energy and Nuclear Disasters. A tank or vessel that acts as a head tank (or surge volume) to control the pressure in a pressurized water reactor
U.S. Nuclear Regulatory Commission (NRC), Full-Text Glossary, Washington, DC, USA 2014. http://www.nrc.gov/reading-rm/basic-ref/glossary/f ull-text.html, (Dzstr/ Disabl Mass Care - Amer) {826}