VIB SteamTech TAD

Through-Air Drying Steamshower

Mills manufacturing high-quality Tissue on TAD (through-air dryer) machines require a consistent sheet moisture profile on the through-air dryer for even drying. Today, superior performance can be achieved in the moisture profile using VIB SteamTech and its unique actuator technology. The VIB SteamTech TAD, a member of the VIB SteamTech Family, is a multiple-section steam actuator system for the forming section. Our advanced technology enables VIB Systems to provide a reliable, high-performance steam actuator with zone spacing down to 50 mm. This, coupled with our durable pneumatic actuators, provides superior benefits for today's Tissue makers.

Advanced Actuator Control Systems

VIB SteamTech TAD Description
The most important characteristics of a good steam actuator are its profiling capability and its ability to raise dry content. These two characteristics improve the sheet's cross-directional moisture profile and optimize the machine's productivity and runability. With a VIB SteamTech TAD on the forming section or upstream of the TAD, managing the moisture profile and drying capacity becomes considerably easier, and reduces gas consumption.

Extra capacity of additional 4 - 10% is possible using a second VIB SteamTech TAD. Enhanced profiling is achieved.

Increasing the velocity of the steam jets onto the web eliminates the compromise between production increases and profiling capability. The VIB SteamTech TAD has two steam sealing zones to keep steam under the box, providing maximum benefit with minimum steam leakage.

 VIB SteamTech interior
Solid high-tech interior of the VIB profiler.

VIB SteamTech TAD has a unique diffuser plate with varying spacing in the machine direction to make the profiler more efficient. 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 proprietary design of the converging nozzles generates higher steam velocity to ensure greater steam condensation and thermal transfer into the paper web.

Primary material for VIB SteamTech TAD is 1.4571 (316 Ti) stainless steel. Special 1.4539 (904 L) grade stainless steel is used to prevent wear from high corrosion at the diffuser plate, edge-heating zones and in pneumatic control lines. An optional Teflon coating is also available for the diffuser plate and edge heating zones for easy cleaning and dust removal.

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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