Coperion Waeschle GmbH said it has developed the first high-pressure blow-through valves for plastics and chemicals.
ZXQ valves, which feed powders into pneumatic conveying systems, are suitable for differential pressures of up to 3½ bar.
The Weingarten, Germany, firm said the rotary valves reach capacities 30-60 percent higher than those reached by conventional valves of the same size, depending on the product and pressure.
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