Rival A/S, a Danish maker of adjustable calibrating sleeves for pipe extrusion, has developed a sleeve specifically for the North American market.
The sleeve features a 10 percent adjustment area. It adjusts for changes in pipe diameter caused by variations in production, such as material thicknesses, raw materials, extruder output, production line speeds, cooling and vacuum levels.
The sleeve allows pipe makers to increase the extrusion speed, without affecting quality. They also can change from one pressure class to another, or from one material to another, without stopping production, according to Rival, headquartered in Skanderborg, Denmark.
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