In an established paper mill, the issue is rarely lack of steam. The challenge is getting heat into the right process stream, at the right location, without creating steam hammer, fouling, unstable temperature control, or another maintenance burden. White water heating is a clear example: the application often requires supplemental heat in a fiber-laden, recycled water stream where space is limited, uptime matters, and traditional sparging can create as many problems as it solves.
ProSonix Direct Steam Injection heaters are designed for these types of applications. By combining controlled steam injection, high-velocity steam discharge, effective internal mixing, and compact inline installation, ProSonix heaters provide mills with a practical way to add heat where it is needed without redesigning the entire system.
By delivering reliable heating in a compact footprint, ProSonix DSI heaters help mills improve white water temperature management while supporting stable operation and long-term equipment reliability.
Reliable Operation in Demanding Service
White water applications can be difficult on heating equipment because the process contains fibers, recycled water, and changing operating conditions. ProSonix DSI heaters are designed for these environments and avoid many of the issues commonly associated with traditional spargers and uncontrolled steam injection systems.
Unlike many steam injection devices that can accumulate deposits over time, ProSonix heaters utilize a choked-flow steam discharge design that continuously produces high steam velocities through the injection ports. This self-cleaning effect helps prevent buildup within the heater, reducing the potential for fouling and helping maintain consistent performance over time.
The combination of controlled steam injection, effective mixing, and a self-cleaning design supports reliable heat transfer while minimizing maintenance requirements. For mills focused on uptime, reliability, and long-term operating performance, that dependability is a significant advantage.
Ideal for Point-of-Use Heating
Many mills do not need a complete redesign of the white water system. They need a focused solution for a specific temperature issue within the process. ProSonix DSI heaters are especially effective for point-of-use heating because they can be installed directly where additional heat will have the greatest impact.
This allows mills to apply heat strategically without oversizing the system or adding unnecessary complexity. For mills looking to improve a localized process condition, that flexibility is a major advantage.
Compact and Easy to Integrate
White water systems are often located in crowded equipment areas where installation space is limited. ProSonix heaters are compact, making them easier to integrate into existing piping layouts without major modifications.
A compact design can also reduce piping complexity, shorten project timelines, and minimize disruption during implementation. In operating mills, fast integration and minimal downtime are often just as important as heating performance.
Consistent Temperature Control
While reliability is often the primary concern, white water systems still require responsive heating that can maintain stable temperatures as flow rates and operating conditions change. ProSonix DSI heaters modulate steam internally and inject it directly into the process stream, creating rapid heat transfer and uniform outlet temperatures.
This helps maintain consistent process conditions without overheating the entire white water loop. The result is more stable operation, reduced process variation, and fewer temperature-related adjustments throughout the process.
A Practical Fit for White Water Heating
The same characteristics that make ProSonix DSI heaters effective across a wide range of industrial heating applications make them especially well suited for white water heating in paper mills. Their compact inline design, controlled steam injection, high-velocity steam discharge, effective mixing, and low-maintenance operation allow mills to add heat where it is needed without creating unnecessary piping complexity, fouling concerns, or reliability issues.
In white water service, those advantages are particularly valuable. Whether the application requires point-of-use heating, improved process stability, or replacement of an aging sparger system, ProSonix DSI heaters provide a practical way to improve temperature management in fiber-containing recycled water streams while supporting uptime, stable operation, and long-term equipment reliability.

