Data Sheet A/4' - ACI Automation Field Components download pdf

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ACI’s two-part Welded Thermowells are used with temperature instruments in process systems where gas or liquid medias are used to provide a degree of protection to the sensing element when installed inside of a pipe, tank, or piece of equipment. The thermowell provides easy access for NIST Certi­fied applications and enables users to easily replace the sensor without having to drain the entire system. Thermowells also protect the small diameter sensing probes from stresses created by high temperatures and pressures, corrosive environments, or the flow of gas and liquid medias through pipes or equipment. ACI’s standard thermowells are made of 304 stainless steel which ensures long lasting reliability and good corrosion resistance. For applications requiring higher flow rates, corrosion resistance, operating temperatures and pressures, please see the ACI Machined Thermowell product data sheet where the thermowells are machined out of a solid piece of 304 or 316 Series Stainless steel. Thermal Grease or Heat Transfer paste is not required to be used with any of the ACI Thermowells due to the tight tolerances maintained between the sensor probe and thermowell. When necessary, thermal grease is available from ACI to improve the sensor’s response time. Insertion depth should be long enough to permit the entire temperature-sensitive section of the temperature probe to project into the medium being monitored, thus maximizing measurement accuracy. Applications: Chilled and Hot Water Systems, Hydronic Heating Systems, Boilers, Pumps, Compressors, Chillers, Refrigeration Systems, Tanks, Aquariums, Process Control Systems, Compressed Air and Gas lines