VIB MoistureTech

On-line Moisture Application

Paper mills manufacturing fine and specialty grades require a specific moisture level and flat profile. Today, superior grades in moisture level can be achieved using the VIB MoistureTech and its unique steam application technology. The VIB MoistureTech is a single side/both sides steam applicator to control on-line moisture in cross and machine direction. Our advanced technology enables VIB Systems to provide a reliable, high-performance steam actuator with zone spacing down to 75 mm. This, coupled with our durable pneumatic actuators, provides superior benefits for today's papermakers.

Advanced Actuator Control Systems

VIB MoistureTech Description
The most important characteristics of a moisture control steamshower are its capability and its ability to raise moisture level on steam treated surface without dripping, marks or other damage to the sheet. These characteristics improve the sheet's cross-directional flatness and optimize sheet running in converting. Sheet moisture and sheet stability can be controlled simultaneously using the VIB MoistureTech in the on-line process.

The compromise between process speed, moisture and sheet stability has been eliminated by increasing the velocity of the steam jets onto the web.

The VIB MoistureTech has two cross-directional headers to make the profiler absolutely drip free. The first steam drying header collects all condensate which might arise from the steam supply and assures that only dry steam reaches the second profiling header.

 VIB MoistureTech
The one-sided pneumatic retraction unit opens, when required, both units of the VIB MoistureTech.

The profiling zone is fully compartmentalized, supplying high-velocity steam to each cross-direction compartment via a separate, uniquely designed actuation valve that allows optimum zone definition and precise control. The spring-loaded profile valves assure immediate steam shut-off at sheetbreak. These proprietary control valves assure finest control of even the smallest amounts of steam (moisture) and prevent excessive steam application. The VIB control technology assures sophisticated on-line control with special limits for each different grade. The VIB MoistureTech heating system assures that the steam shower is always hot and immediately ready for steam application.

Primary material for VIB MoistureTech is 1.4571 (316 Ti) stainless steel. A special steam heating system of diffuser plate and dwell zone assures complete heating even during longer sheetbreaks.

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VIB Systems GmbH • Am Kreuzstein 80 • 63477 Maintal • Germany • Phone: +49 6109 606-0 • Fax: +49 6109 606-160

VIB Systems, Inc. • 4661-A Hammermill Road • Tucker, GA 30084 • USA • Phone: +1 770 491 8981 • Fax: +1 770 934 5716

Qualitek VIB • 4661-A Hammermill Road • Tucker, GA 30084 • USA • Phone: +1 770 543 0180 • Fax: +1 770 543 0181