Profile

• 1981 - Watlow purchases Adlake's mercury displacement relay division which adds power switching ability. Watlow expands its St. Louis, Missouri, manufacturing facility to over 185,000 square feet.

• 1990 - Watlow opens a new facility in Troy, Missouri, dedicated to process system design and fabrication.  Watlow opens a new sales office in Seoul South Korea. Watlow introduces microprocessor-based controller the SERIES 945.

• 2000 - Watlow Polymer Technologies introduces patented THERMOPOLYMER® heaters to provide unique heated parts. Watlow is awarded winner of the Mississippi Valley Family Business of the Year Award, in the large Missouri business category by Southern Illinois University Edwardsville. Watlow expands its manufacturing, sales and R&D operations in Singapore.

Watlow works with suppliers who deliver the best quality, value and service at the most competitive cost. In partnership with Watlow, our suppliers deliver innovative products, focus on continuous operational improvement and rapidly and effectively drive change through their organizations. 

Watlow is the largest custom designer and manufacturer of industrialelectric heaters, sensors and controllers; with offices and manufacturing facilities around the world. Watlow brings its thermal expertise to numerous applications, includingsemiconductor processing, energy processes, diesel, foodservice equipment, life sciences and others.

Cartridge / Insertion Heaters:Watlow’s cartridge heaters and insertion heaters can be inserted into holes, used as immersion heaters placed directly in liquid or in protective wells, or can be mounted in pipes or vessels.

Tubular heaters are used for immersion and air heating applications. They can be clamped to objects such as vessels and tanks, fitted into milled groove platens, immersed directly into a liquid being heated or even mounted in ducts for heating air and gas. 

Flexible heaters are commonly used to heat irregular surfaces, shapes and pipes. These heaters can be bonded or fastened to parts and are often used for freeze protection.

These heaters can be immersed directly in the liquid being heated or put in protective wells. Multiple style mounting adaptors are available.

Watlow’s diverse array of circulation heaters range from quartz heaters for aggressive chemicals to large pressure vessel heaters with capabilities up to 3000psi. These heaters can be used for liquids or gases in various applications.

Watlow fluid delivery heaters provide overall reliable, responsive heating for fluid delivery systems in medical, analytical, water purification and general process applications. Watlow fluid delivery heaters offer precise, repeatable heating, control improving product life.

Watlow’s air heaters can be used to prevent freezing and condensation in electrical and mechanical housing or can be placed in ducts for forced air heating.