Thermowells (Stainless Steel)

The A/2.5", 4", and 6" thermowells are made of 300 series stainless steel to ensure long lasting reliability and stability. These units are milled to high tolerances, so there is no gap between the thermowell sheath and the probe, to provide maximum heat transfer.

The A/2.5", 4", and 6" thermowells are a two part thermowell. The sheath is set into the nut (see dimensional drawing on back) and then welded with an automated tig weld for consistency and from its own material to provide the strongest possible joint.

The ACI/M2.5" M4" and 8" thermowells are made of A.I.S.I. 300 series stainless steel to ensure long lasting reliability and stability. The wells are machined from solid bar stock using the most modern CNC machines. The bore is smooth, true, accurately centered, and precisely sized for 0.250" O.D probes. The thermowells are machined from one piece of stainless steel to avoid the weak point inherent in a weld. The well will be able to withstand rapid temperature changes without any degradation in its' mechanical structure. The precision bore gives excellent thermal conductivity from the well to the temperature sensor.

If preferred, thermal grease may be used with all of the thermowells. ACI offers the thermal grease in both a silicone and non-silicone compound. The silicone compound is available in a 8 oz. tube and the non-silicone compound is available in a 2 oz. tube.