United States Nuclear Regulatory Commission - Protecting People and the Environment
Home > NRC Library > Basic References > The Student Corner > For Educators > The Pressurized Water Reactor (PWR)

The Pressurized Water Reactor (PWR)

The Pressurized Water Reactor (PWR)

The Pressurized Water Reactor (PWR)

PWRs keep water under pressure so that it heats, but does not boil. Water from the reactor and the water in the steam generator that is turned into steam never mix. In this way, most of the radioactivity stays in the reactor area.

See also: Pressurized Water Reactors Page

Page Last Reviewed/Updated Tuesday, September 08, 2015