TriPack ST-3 Steam Tunnel, 330 lb/hr, model ST-3 7.5, is manufactured by TriPack. Tripack's line of ST steam tunnel systems are the most robust, controllable steam tunnels on the market today. Tripack ST steam tunnels are designed with double walled stainless steel shells, on-the-fy steam baffle distribution adjustments, VFD steam exhaust system, and super heated steam fow control components. Easy operation and excellent steam controls make these tunnels great for low speed operations and high speed bottling lines. Tripack ST steam tunnels offer maximum shrink control through various steam components and a fully adjustable, 3-way steam manifold injection system. ST Series tunnels are built with a double-walled stainless steel frame that minimizes surface temperature. All tunnels come with Allen-Bradley VFD controlled steam exhaust system. Models range in length from 3' to 20'.