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Anver now offers a line of one-way vacuum check valves that are designed to prevent leaks and optimize vacuum-pump performance. CheckVac Valves are made from a seamless, one-piece aluminum body and feature a plastic valve element with a tempered-stainless-steel spring and an O-ring seal. The company says its valves provide a flow rate that’s four times better than what’s offered by conventional pressure check valves, thereby enabling the use of smaller vacuum pumps in many applications. CheckVac Valves come in 0.50-in. NPT sizes and are spring loaded to operate in any orientation. Anver Corp., 36 Parmenter Rd., Hudson, MA 01749, 800-654-3500, fax: 978-568-1570, Web:


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