Nanmac logo, A world leader in thermocouple and RTD solutions since 1956, US Vet Owned, MADE IN USA ISO 9001:2008 Certified, ISO 17025 Accredited, AS 9100C Compliant, DUNS Numbers Enter Nanmac China MTI logo 2011 Nanmac One Liner, Your Source for Complete Thermal Sensing Solutions
Contact a Nanmac Engineer
Call Us Email Us

Ultra Heavy Duty High Temperature Thermocouple Probes

with Tungsten Coated Refractor Sheath and Standard Connector Attached

A12D Series

Click for Specs

(click icon for specifications)

Oftentimes, a molybdenum sheathed thermocouple is used in a furnace with graphite liners or heating elements. At temperatures above 1,600 degrees Celsius any graphite present emits dust molecules which attack the sheath and rapidly carburizes the sheath. This causes the sheath to become crystallized and porous. The thermal elements lose their protection and they also become crystallized and then break during cycling. Coating the protecting sheath with a thick layer of tungsten minimizes this carburization process and extends the life of the probes significantly. Field tests at 2,000 degrees Celsius using the coated probes produced continuous temperature data for up to two months. Even during cycling, whereas the uncoated probes failed within hours of reaching temperature. Longer life times were also experienced at temperatures below 2,000 degrees Celsius.

Thermocouple Extension Wire Jack Panels Compression Fittings Selection Guide Thermocouple Cable Extension

© 2016 Nanmac Corporation | PO Box 6640 | 1657 Washington St., Bldg. 3 | Holliston, MA 01746 | 1-800-786-4669