Nuclear Services
Over 40 years ago, Henry Pratt Company began providing butterfly valves to the Nuclear Power Industry. Most of the Pratt valves furnished in the 1960s are still in service today, having little or no maintenance over the years. Our in-house Nuclear Aftermarket Department and outside sales force provide superior service nationwide. Whether you require spare parts, replacement valves, or just sound advice, Pratt is ready to respond.
Pratt offers Nuclear repair and upgrade services for:
- Resilient Seated Butterfly Valves
- Ball Valves
- Gate Valves
- Safety Relief Valves
- Control Valves
- Cone Valves
- Plug Valves
- Rectangular Valves
- Sleeve Valves
- Fixed Cone Valves
- Actuators
Pratt also performs EPRI based modifications that are consistent with the Performance Prediction Program. MOV upgrade capabilities include:
- EPRI Modifications
- Certified Hardfacing
- Heat Treating and NDE
- MPR Formatted Documentation
- Reverse Engineering
Henry Pratt Company holds Certificates of Authorization from the ASME to manufacture valves bearing the N symbol for Classes 1, 2 and 3 Nuclear Valves and parts bearing the NPT Symbol for Classes, 2, 2 and 3 Nuclear Valve Parts. The company exceeds all requirements for building nuclear valves in strict accordance with Section III of the ASME Boiler and Pressure Vessel Code. Pratt maintains the N, NPT and VR stamp.




