A nuclear
Cast Check Valve
is a one-way valve that allows a fluid to flow in a single direction with minimum resistance. The fluid could contain either liquid or gas. A nuclear check valve consists of a body, bonnet, and disc. The body comprises two ports: one for the fluid to enter and the other for it to exit. Nuclear check valves are used in various nuclear power plant applications such as cooling water circuits, preheaters, vaporizers, and turbines.
They are employed in the nuclear industry to control feed water systems, as well as in dump lines, miscellaneous process systems, and monitoring and sampling systems. Nuclear check valves also help avoid reverse flow with minimal leakage. They prevent excessive heat transfer between two fluids and play a pivotal role in providing safety against explosion and meltdowns in the nuclear power industry. Installing them not only aids the protection of sensitive components such as pumps, but also inhibits the inadvertent draining of tanks.
Straight-way swing and angle are the two primary types of check valves used in nuclear power plants. The former is likely to dominate the nuclear check valve market during the forecast period primarily due to its simple design, low pressure drop, low cost, reliable sealing, and availability in a wide range of sizes. Swing check valves offer better leak tightness compared to angle check valves. Furthermore, they have advantages such as a good closing and throttling feature. These Swing Check Valve are employed widely in high-pressure service applications.