Direct Steam Injection Water Heaters are custom-engineered for operating conditions.

Press Release Summary:

Nominally available in 1.5-6 in. sizes, direct steam injection water heaters raise temperature of water and water-based slurries by injecting steam directly into fluid. They accommodate various industrial processing applications and are custom-engineered based on operating conditions to ensure optimal performance and efficiency. Absence of moving parts, with exception of actuator and modulating spindle, promotes reliability and service life.

Original Press Release:

Kadant Johnson Introduces New Direct Steam Injection Water Heater Product Line

Three Rivers, Mich. - Kadant Johnson Inc., a subsidiary of Kadant Inc. (NYSE:KAI), announces the introduction of its new direct steam injection water heater product line. Direct steam injection water heaters, also referred to as direct injection heaters, are used to rapidly and accurately heat water and water-based slurries by injecting steam directly into the fluid.

Direct injection heaters are used in a variety of industrial processing applications including boiler feedwater preheating, fibrous slurries such as pulp stock and biomass pretreatment, paper starch processing, sanitization and tank cleaning, and anaerobic treatment of organic waste, among other applications.

According to Gregory L. Wedel, president of Kadant Johnson Inc., "Direct injection heating uses all the sensible and latent heat of steam to heat the fluid. It can provide equal heating to that of an indirect heat exchanger process with 20 percent to 30 percent less energy. The improved energy efficiency results in less steam consumption with no reduction in output. This new product line complements our existing steam specialty products to maximize energy efficiency in process industries."

Kadant Johnson direct steam injection water heaters are available in sizes 1.5" through 6" with other sizes available on request. All units are custom-engineered based on the operating conditions to ensure optimal performance and efficiency. With the exception of the actuator and modulating spindle, the direct injection heater has no moving parts, giving it high reliability and long service life.

Kadant Johnson Inc., based in Three Rivers, Michigan, is a leading provider of rotary joints, precision unions, and fluid handling systems to process industries, where they optimize heat transfer in rotating cylinders and integrate fluid handling systems.
Kadant Inc. is a leading supplier to the global pulp and paper industry, with a range of products and services for improving efficiency and quality in pulp and paper production, including paper machine accessories and systems for stock preparation, fluid handling, and water management. Our fluid-handling products are also used to optimize production in the steel, rubber, plastics, food, and textile industries. In addition, we produce granules from papermaking byproducts for agricultural and lawn and garden applications. Kadant is based in Westford, Massachusetts, with revenues of $226 million in 2009 and 1,600 employees in 16 countries worldwide. For more information, visit

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