General instruments supplies thermowells. Bar stock or fabricated from pipe thermowells are offered in variety of materials depending upon process conditions or customer requirement. Screwed/flanged/weld in process connections are offered. Sleeved thermowells can be offered wherever cost is of priority. Hac, ti, ni, ta sleeves are offered over basic thermowell of ss 316. The sleeve extends up to the raised face portion of the flange thereby ensuring that wetted parts are of the same material, which is compatible. Ceramic or silicon carbide thermowells are offered with metallic support tubes in order to facilitate the mounting of the assembly. Tungsten carbide thermowells are offered for coal mill outlets [generally for power plant applications] to survive the particle impingement which otherwise erodes the thermowell. Wake frequency calculation in accordance with ptc 19.3 is performed wherever high velocities of process fluids can damage the thermowell. Van stone design can also be offered for thermowell.
