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Merit Instruments offers a multitude of thermowells for almost every application. With our manufacturing facilities, and special relationships with other qualified thermowell manufacturers, Merit welcomes inquiries for all types of thermowells. Some of our specialities include: Flanged thermowells up to 60" in length, Sanitary thermowells, Weld-in thermowells and much more. In addition to our standard .260" or .385" bore thermowells, we also welcome inquiries for custom/proprietary and OEM thermowells.

Merit Instruments also guarantees that the delivery time that we quote to you will be met. No more late deliveries or excuses; when Merit Instruments makes a promise, it's a promise that you can count on!

To learn more, or to request a quote, please contact Merit today - you'll be glad that you did!

Custom Designed Thermowells

  • For any application where the process media would damage the instrument due to corrosive properties of the media or flow rate. Suitable where a "sealed-system" is desired to allow for easy replacement of damaged or outdated instruments without the need for shutting down or draining the system.

    Suitable for use with various analogue and digital thermometers as well as RTDs.

  • Tapered design

    Stepped design

    Straight design

    Flanged process connection

    Sanitary process connection

    Stem lengths up to 60"

    Available machined from solid barstock (including flanged thermowells).

    Available in a wide array of materials including: brass, low-lead brass, 304 stainless steel, 316 stainless steel, Hastelloy, Monel, etc.

    Merit Instruments can also supply proprietary designed thermowells to suit your application (contact us for details).

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