The thermowells are designed as per ASME PTC 19.3 and wake frequency calculations are carried to confirm the design criteria. The thermowells are manufactured using gun drilling machine with single piece bar stock up to 1 m with a bore concentricity of 0.1 mm of wall thickness per 100 mm. The thermowells are also referred as protecting tubes and are used where the process pressure is on higher side to prevent the damage of temperature Instruments are installed.
The thermowells are available in various types like screwed, flanged, vanstone, fabricated, built-in bar stock etc. Various Tests like Hydro test up to 600 bar, Radiography, Liquid Penetration, Bore concentricity, radiography for full penetration welding, NACE compliance, PMI, IGC on raw material etc. are performed as per the specifications or needs defined by the user.
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