Finally, we also control the standard of every component and each step in the manufacturing process. A devoted team of buyers, engineers, quality inspectors and machine operators works day and night to make sure each component fulfills the stringent Valley quality requirements. Because our suppliers are situated in the United States, we can easily perform random inspections of their facilities to ensure they are meeting our quality standards. All major elements are also machined by Valley, providing a second quality level control. Your final inspection is conducted by testing each gearbox before it is shipped. And, to further ensure Valley quality, randomly chosen gearboxes are life-tested inside our gearbox testing laboratory.
But, even the very best gear design and components won’t help if the gearbox isn’t sealed from the elements. That’s why Valley runs on the patented six-barrier input and nine-barrier output seal to keep oil in and problems out. To compensate because of this longer shaft, special wheels are used that actually move the center of the tire nearer to the gearbox result bearing than the industry standard, reducing the load on the gearbox.
Valley also uses U.S.-made, case-hardened bearings created from ultra-pure steel rather than through-hardened Chinese bearings used by others. Case-hardening provides superior wear characteristics while maintaining the internal irrigation gearbox toughness of the core material. As a result, Valley bearings possess a 40 percent greater load rating.
The Valley gearbox also offers a 52:1 gear ratio. This means the gearbox uses 4 percent less energy to move the device through the field, but, moreover, the design has a completely recessed tooth action. With a completely recessed design, the gears maintain lubrication oil between the gears longer, reducing friction for improved load capability and longer life.