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    Not Sure? Try Our Digital Product Assistant

    Take the complexity out of product selection with our innovative Digital Product Assistant. Answer a few application questions and our interactive tool will recommend a product from our catalog.

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    THERMALWATCH™ Intelligent Analytics Solution

    THERMALWATCH leverages our deep understanding of thermal systems to provide secure data integration and management, along with expert analysis, to transform data into valuable information.

    Learn More
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    Watlow SELECT® Visual Designer™

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    Help Me Choose

    man with dual monitors using product selection assistant
    Not Sure? Try Our Digital Product Assistant

    Take the complexity out of product selection with our innovative Digital Product Assistant. Answer a few application questions and our interactive tool will recommend a product from our catalog.

    Launch Assistant
    Still need help? Locate a Rep Contact Us
    Product Documentation

    Watlow Catalogs Specification Sheets User Manuals Software and Demos Brochures
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    Try Our Interactive Catalogs

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    Products
    View All

    Electric Heaters
    Cartridge Insertion Heaters Circulation Heaters Immersion Heaters Air Heaters Flexible Heaters Tubular Heaters Gas Delivery and Exhaust Heaters High-Temperature Heaters Specialty Heaters View All
    Temperature & Process Control
    Multi Loop Controllers Single Loop Controllers Indicators and Alarms Limits and Scanners Operator Interfaces
    Power Control
    Power Controllers Power Switches
    Data Management
    Data Recorders
    Panels & Systems
    WATCONNECT® Control Panels POWERSAFE™ Thermal System
    Sensors
    Thermocouples Resistance Temperature Detectors (RTDs) Fiber Optic Sensing
    man with dual monitors using product selection assistant
    Not Sure? Try Our Digital Product Assistant

    Take the complexity out of product selection with our innovative Digital Product Assistant. Answer a few application questions and our interactive tool will recommend a product from our catalog.

    Launch Assistant

    Services

    thermalwatch thumbnail image of laptop with modern analytics dashboard
    THERMALWATCH™ Intelligent Analytics Solution

    THERMALWATCH leverages our deep understanding of thermal systems to provide secure data integration and management, along with expert analysis, to transform data into valuable information.

    Learn More

    Configure a Product

    vd_
    Watlow SELECT® Visual Designer™

    Quickly configure a product to meet the unique requirements of your application. Instantly access lead times, dimensional drawings, and more - at your own pace. No login required.

    Get Started

    Prefer to talk to a human? Find a Distributor or Sales Office 

    Part Lookup

    Know Your Part Number?

    Enter your part number exactly as marked.

    #
    Tip

    Many parts have lead times, dimensional, drawings, and more available on-demand. Click "Request a Quote" on the search result to access.

    Help Me Choose

    man with dual monitors using product selection assistant
    Not Sure? Try Our Digital Product Assistant

    Take the complexity out of product selection with our innovative Digital Product Assistant. Answer a few application questions and our interactive tool will recommend a product from our catalog.

    Launch Assistant
    Still need help? Locate a Rep Contact Us

    Product Documentation

    Watlow Catalogs Specification Sheets User Manuals Software and Demos Brochures
    CAD Drawings Mobile Applications Watlow Patents Certifications & Approvals
    catalog-ebook
    Try Our Interactive Catalogs

    Click Here

  • What We Do

    What We Do

    The Thermal Loop Industry Solutions Electrification Industry 4.0
    The Thermal Loop
    Learn More

    icon representing a thermal loop system
    The Thermal Loop

    For Watlow, the underlying concept behind everything we do is that of the thermal loop. Every product we offer, and every project we work on, is ultimately about the creation and control of a thermal loop in an application. 

    Learn More
    Industries

    Heat Treatment Energy and Environmental Technologies Life Sciences
    Clinical Equipment Semiconductor Processing Foodservice Equipment
    Electrification

    thumbnails of white papers relating to electrification and decarbonization
    Electrification

    Over 100 years ago, Watlow began designing and manufacturing electric heating elements to replace steam in the shoe industry. We've been electrifying equipment and processes ever since. Wherever thermal is critical, no one is better equipped to help you reach your energy transition goals. Learn why leading companies partner with us.

    Learn More
    Industry 4.0

    thumbnail of industry 4.0 white paper on tablet and print
    The Thermal Loop & Industry 4.0

    Industry 4.0 technology enables the capture and processing of data in real time, both where its generated and where it is needed, to implement effective improvements to industrial processes. Capturing data, though, is not enough. The advantage Watlow® brings to an Industry 4.0 project are its thermal experts, who understand both the important role thermal loop systems play in key applications and industry 4.0 implementations.

    Learn More

    The Thermal Loop
    Learn More

    icon representing a thermal loop system
    The Thermal Loop

    For Watlow, the underlying concept behind everything we do is that of the thermal loop. Every product we offer, and every project we work on, is ultimately about the creation and control of a thermal loop in an application. 

    Learn More

    Industries

    Heat Treatment Energy and Environmental Technologies Life Sciences
    Clinical Equipment Semiconductor Processing Foodservice Equipment

    Electrification

    thumbnails of white papers relating to electrification and decarbonization
    Electrification

    Over 100 years ago, Watlow began designing and manufacturing electric heating elements to replace steam in the shoe industry. We've been electrifying equipment and processes ever since. Wherever thermal is critical, no one is better equipped to help you reach your energy transition goals. Learn why leading companies partner with us.

    Learn More

    Industry 4.0

    thumbnail of industry 4.0 white paper on tablet and print
    The Thermal Loop & Industry 4.0

    Industry 4.0 technology enables the capture and processing of data in real time, both where its generated and where it is needed, to implement effective improvements to industrial processes. Capturing data, though, is not enough. The advantage Watlow® brings to an Industry 4.0 project are its thermal experts, who understand both the important role thermal loop systems play in key applications and industry 4.0 implementations.

    Learn More
  • Who We Are

    Who We Are

    About Us Core Values Sustainability News Events & Webinars
    About Us

    We solve the world's toughest and most important thermal problems.


    About Us Leadership Team Company History Watlow Worldwide
    Core Values

    core values compass
    The Watlow Way

    At Watlow, our lean journey, as well as our core organizational beliefs are aligned with the Watlow Way, a set of core principles, behaviors and values which guides our company and is woven through every decision we make.

    Learn More
    Sustainability

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    Some of our best work is performed in areas intended to protect and preserve our environment

    We believe protecting the environment is everyone's responsibility and both our products and our own lean manufacturing processes are designed to address these challenges.

    Learn More
    News

    Find the latest news, press releases and annoucements.


    News
    Shiyi Zhou Joins Watlow® as Regional President for Asia Watlow® Welcomes Klaus Aarestrup as New Regional President of Europe Watlow’s New Large and Extra Large WATCONNECT® Control Panels Maximize Process Uptime with a Small Footprint Watlow’s New PM PLUS® 1/8 DIN PID Controller Watlow® Obtains KGS Certification on Flange and Circulation Heaters Watlow® Completes Acquisition of Eurotherm®
    View All News 
    Events

    Watlow & Eurotherm tradeshow booth at SPS 2024
    Events & Webinars

    Stay connected with Watlow through a variety of events, including upcoming trade shows, webinars, corporate and community involvement activities.

    Learn More

    About Us

    About Us Leadership Team Company History Watlow Worldwide

    Core Values

    core values compass
    The Watlow Way

    At Watlow, our lean journey, as well as our core organizational beliefs are aligned with the Watlow Way, a set of core principles, behaviors and values which guides our company and is woven through every decision we make.

    Learn More

    Sustainability

    sustainability graphic - green earth
    Some of our best work is performed in areas intended to protect and preserve our environment

    We believe protecting the environment is everyone's responsibility and both our products and our own lean manufacturing processes are designed to address these challenges.

    Learn More

    News

    News
    Shiyi Zhou Joins Watlow® as Regional President for Asia Watlow® Welcomes Klaus Aarestrup as New Regional President of Europe Watlow’s New Large and Extra Large WATCONNECT® Control Panels Maximize Process Uptime with a Small Footprint Watlow’s New PM PLUS® 1/8 DIN PID Controller Watlow® Obtains KGS Certification on Flange and Circulation Heaters Watlow® Completes Acquisition of Eurotherm®
    View All News 

    Events

    Watlow & Eurotherm tradeshow booth at SPS 2024
    Events & Webinars

    Stay connected with Watlow through a variety of events, including upcoming trade shows, webinars, corporate and community involvement activities.

    Learn More
  • Resources

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    CMRT/EMRT & Russian Material Disclosure
     

    Conflict/Extended Mineral Russian Material Disclosure [.PDF]
    Events

    Watlow & Eurotherm tradeshow booth at SPS 2024
    Events & Webinars

    Stay connected with Watlow through a variety of events, including upcoming trade shows, webinars, corporate and community involvement activities.

    Learn More

    Product Documents

    Watlow Catalogs Specification Sheets User Manuals Software and Demos Brochures
    CAD Drawings Mobile Applications Watlow Patents Certifications & Approvals Retrofit Guides

    Tools and Calculators

    Wattage Calculator Ohm's Law Calculator 3-Phase Delta / Wye Calculator Glossary Equations Reference Data

    Customer Service Documents

    Invoice Payment Options Supplier Requirements Environmental Polices and Statements Copyright and Trademark Information Certifications & Approvals Policies Return Materials Authorization (RMA)

    Knowledge and Insights

    thumbnails of white papers relating to electrification and decarbonization
    White Papers
      Browse White Papers
    Tech Tips logo
    Tech Tips
      Browse Articles

    CMRT/EMRT & Russian Material Disclosure

    Conflict/Extended Mineral Russian Material Disclosure [.PDF]

    Events

    Watlow & Eurotherm tradeshow booth at SPS 2024
    Events & Webinars

    Stay connected with Watlow through a variety of events, including upcoming trade shows, webinars, corporate and community involvement activities.

    Learn More
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    At Watlow®, we recognize the importance of learning, experimenting, and building your career. Our student programs are a great way for you to gain hands-on experience and on-the-job learning from the start. Learn More
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  1. Tech Tips
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The Thermal Loop

Latest Posts

Thermal Loop: An Introduction to the Unifying Concept Behind Watlow’s Products and Processes

For Watlow, the core concept is the thermal loop, which drives every product and project. This paper, the first in a series, focuses on the three foundational components of the thermal loop: heaters, sensors, and controllers. Understanding this concept will clarify how Watlow’s products, projects, and expertise fit into the bigger picture.

Electric Heaters Data Logging Control Loops Power Controllers Process Controllers Process Heaters System Design Temperature Control Thermocouples White Paper The Thermal Loop
Andy Selvy on Feb 07, 2024
Thermal Loop Systems

Heat treatment processes are a crucial component of many manufacturing processes, and thermal loop solutions have become increasingly popular for achieving improved temperature control and consistent outcomes. But many OEMs are missing opportunities where thermal loop solutions offer more than just greater control. In this article, by Engineer Live Magazine, Peter Sherwin, and Thomas Rücker,explore the possibilities of thermal loop solutions.

Control Loops Power Controllers Process Controllers Sensors System Design Temperature Control The Thermal Loop
Engineer Live Magazine on Jun 30, 2023
Thermal System Integration: The Example of RMA PLUS™

Devices within a thermal system can have different requirements when it comes to connection interfaces and protocols. Here's how the RMA PLUS design can help and give you installation flexibility that works even with systems that are not formerly compatible.

RMA PLUS The Thermal Loop
Watlow on Nov 18, 2022
Why ATS™ is the Heating, Sensing and Controlling Suite of Tomorrow

In the past, thermal systems always had tradeoffs that often made the “ideal” system out of reach. Whether budgetary concerns limit the number of temperature sensors, tight space requirements limit the number of zones or the technology limits how precise and accurate heating systems are, these systems are often born of compromise. Watlow’s Adaptive Thermal Systems® (ATS™) are designed to provide companies with the tools to build the heating systems they need without forcing compromises.

Adaptive Thermal Systems The Thermal Loop
on Aug 09, 2022
White Paper: Tackling Thermal System Complexity: The Promise of ATS™

The benefits of precise thermal control also come with an engineering challenge: Keeping the complexity of the system in check while addressing issues of thermal uniformity and system responsiveness. Adaptive Thermal Systems® (ATS™) is a suite of technologies designed to combine heating, sensing and control technologies to meet this challenge, and reduce the wiring and space requirements of diverse systems while improving real-time sensing, diagnostics and control.

STREAMLINE™ Adaptive Thermal Systems The Thermal Loop
Brittany Phillips on Apr 18, 2022
Industrial Heater Considerations

Whether to replace your industrial heater or upgrade an existing system requires confronting questions about regulatory requirements, operating environment and other factors, our experts are available to guide you through the process step-by-step to find the best solution for your unique needs.

The Thermal Loop
on Dec 21, 2021
Use Smart Power Control to Improve Temperature Control

Power controllers are available in conventional or smart variants. Smart controllers are devices that enhance conventional capabilities and designs. These are made to resolve new challenges that may occur within an advanced control system. Continue reading.

Power Controllers Power Control ASPYRE® Intelligent Power Controller The Thermal Loop
Sean Wilkinson on Dec 16, 2021
How Data Logging Can Optimize Your Heat Processing

Machines have become increasingly connected, with information created and tabulated in real-time and then shared across various communication points. One of the most important technologies impacting process heating is data logging.

ASPYRE® Intelligent Power Controller F4T/D4T Data Logging RMA PLUS Industry 4.0 The Thermal Loop
Watlow on Apr 12, 2021
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