Thermowells

NSPI manufacturers a wide variety of nuclear qualified thermowells in virtually any style or material. While NSPI’s standard thermowells are fabricated from stainless steel, other materials such as Monel, Inconel and Hastelloy are regularly produced. For ASME SECTION III compliant thermowells, we source bar stock materials from a certificate holder and then manufacture the wells under our NQA-1 and NCA 3800 quality program. The thermowell styles offered by NSPI include standard and heavy duty in socket wells, threaded wells and flanged wells.