Thermowell – Protective Well for Thermocouple & PT100

A thermowell is a protective housing that helps protect thermocouple and PT100/RTD sensors from process pressure, flow, abrasion and chemical effects. It also improves serviceability by allowing sensor replacement without direct exposure to the process. This page summarizes typical applications, quick selection criteria and the key details needed for a fast quotation.

Why Use a Thermowell?

• Helps protect sensors from process pressure and flow effects
• Improves resistance against wear and chemical exposure (material dependent)
• Enables easier maintenance and sensor replacement (may reduce downtime)

Quick Selection Guide

• Process conditions: pressure, temperature, flow velocity
• Media/fluid: chemical content and abrasiveness
• Connection type: threaded (NPT/BSP), flanged, weld-in, etc.
• Dimensions: immersion length, root diameter, tip design
• Material: selected according to process compatibility
• Compatibility: sensor type (thermocouple/PT100) and sensor dimensions

Price & Quotation Criteria

Thermowell prices vary depending on material, dimensions and connection type. To receive a fast and accurate quote, please share:

1. Process temperature, pressure and flow information
2. Media/fluid and chemical content
3. Connection type (thread/flange/weld-in) and standard (NPT/BSP, etc.)
4. Immersion length and required dimensions (technical drawing if available)
5. Sensor type (thermocouple or PT100) and sensor size

Related categories: Protective sheaths

Frequently Asked Questions (Shipping & Sales)

Is a thermowell the same as a protective sheath?

They are used for similar purposes. A thermowell is typically a more engineering-focused protective housing designed for pressure/flow conditions and process connections.

When will my order be shipped?

In-stock items are typically shipped the same day or the next business day. Lead times may vary for custom dimensions or made-to-order items.

Is there an exchange/return option?

Return/exchange conditions apply for standard items. Different conditions may apply for custom-made/custom-dimension items.