NA-300 LPRM for All Other BWR-6s

World-Class Quality

The Reuter-Stokes NA-300 LPRM sets the industry standard for world-class quality and reliability. Since shipping our first system in 1984, we have delivered nearly 29,000 NA-300 LPRM assemblies throughout Europe and Asia as well as the United States. Establishing a reputation for excellence, the NA-300 was selected for the world's first operating advanced boiling water reactors at Kashiwazaki-Kariwa 6 and 7 and Lungmen Units 1 and 2.

Features & Benefits

The NA-300 LPRM assembly is a "wet sensor" design, which permits reactor coolant to flow up through the LPRM tube in intimate contact with the NA-300 ion chambers. A dry tube runs up the center of the NA-300 LPRM assembly to allow the TIP sensor to be positioned adjacent to each of the four sensors for periodic calibration. The four sensors are permanently mounted in the LPRM and are located at predetermined elevations. The assembly is enclosed in a stainless steel cover tube equipped with end fittings that appropriately interface with the support plates and grid of the reactor core. The entire assembly is replaceable from the top of the vessel during a refueling outage.

  • Long life (greater than 1 E22 nvt), high reliability, stable performance
  • Meets stringent requirements of Section III, Class 1 of ASME Boiler and Pressure Vessel Code (customer-specified edition and addenda), and is NPT stamped
  • Manufactured in accordance with ISO 9001 certified quality assurance manual number 113036, which implements the requirements of 10CFR50, Appendix B and 10CFR21
  • Supplied with environmentally qualified quick disconnect connectors
  • Coolant flow path through LPRM assembly maximizes heat transfer and minimizes vibration
  • Electrical test data provided with each detector
  • Low carbon material selection, design features and advanced manufacturing processes extend mechanical life
  • Cobalt control results in lower disposal cost due to reduced radioactivity at end-of-life

LPRM Assemblies

For More Information

Contact one of these resources:

Call: Marv Wilson at (330) 963-2448 Call: Warren Phelan at (330) 963-2458 Call: Dan Waltermire at (330) 963-2311

For existing order and shipment status:

Call: Dianah McDonald at (330) 963-2465