In this four-page newsletter, the company provides information regarding its characterized control ball valves. It compares its product to the properties of a “typical” ball valve. According to the manufacturer, it has solved the problem of ball valve control stability with a special disk inside the inlet port. One side of the disk is concave and matches the surface of the ball. The company says the opening in the ball and the V-shaped opening in the disk control the flow. The back page spells out the features of the product.
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