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Powder and Bulk Engineering
Saturday, August 23, 2014
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Powder and Bulk Engineering is a technical publication devoted to readers in the bulk solids market, worldwide.
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Publication Date: 04/2002
Pages: 4
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PDF Format
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$7.50
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How to choose a reliable, long-lasting rotary valve

Selecting a rotary valve used to be a matter of matching the valve's feeding capacity, based on your product's bulk density, to your required process or pneumatic conveying system capacity. Today this is only the beginning. Now valve selection involves a combination of materials testing, computer-aided design engineering, high-quality raw materials, advanced casting and certified fabrication procedures, accurate machining, and high-quality bearings and shaft seals. As this article explains, the result is a rotary valve engineered to match your application and provide reliable, long-lasting service.

How long should your rotary valve last? In the chemical, food, and pharmaceutical industries, equipment is considered reliable if it operates unattended, with no downtime, for 100 percent of the time, 24 hours a day, 7 days a week. A reliable, long-lasting rotary valve should operate continuously in your process without adjustment or service except when purposely shut down for preventive maintenance. And with good preventive maintenance, you can expect your valve to operate for 30 to 40 years.

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