Protective Barrier
A thermowell’s main job is to protect a RTD from external conditions, which it does by housing the RTD, as shown in Figure. With the RTD safe inside, the thermowell can handle an assortment of corrosive or abrasive process media and withstand turbulent or high pressure conditions. The thermowell prevents the RTD’s sensing element from being exposed to extreme hot or cold temperatures.
Increased Serviceability
If you need to remove or replace a RTD, thermowells simplify the process by providing easy access. They stay installed in the piping system while a RTD is being serviced. As a result, operations continue, which means there is no unnecessary downtime, and the process media continues to flow without worry of escaping the system.
Reduced Operational Costs
RTDs last longer and do not need to be serviced as often when thermowells are used to protect them. In effect, thermowells help decrease the total cost of RTDs by minimizing the time spent maintaining and servicing the instruments. The fact that you won’t need to replace RTDs as often or maintain a large inventory of them will also save you money in the end.
Some Technical Word For Thermometer That YOU should Know
Thermowell root dimension (Q)
Thermowell Bore size
Thermowell Immersion (“U”) Length
Thermowell Lagging Extension (“T”) Length