High gear ratio transmission delivers quieter valve operation, while durable forged brass valve and corrosion-resistant components ensure long life.

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OLATHE, KANSAS (October 14, 2010) —Grundfos UP Two-Way Zone Valves for hydronic heating applications incorporate a 24-VAC, normally closed, motorized actuator that is removable with the push of a built-in button for easier installation and servicing. With its compact and installer-friendly design, the in-line actuator features a high gear ratio that eliminates gear-tooth stress, water hammer and valve “bouncing” for virtually silent operation.

Available with or without a sealed auxiliary end switch, the actuator has an enlarged, coil-spring gear transmission that can deliver 20 psi (pounds per square inch) of close-off force at a flow rate of 7.5 Cv. (Note: Cv is defined as the number of gallons per minute at 60°F that will pass through a full open valve with a pressure drop of 1 psi.)

The valve body itself is made of durable forged brass, rated at 300 psi, with a two-way flow and a high Cv rating. All components are corrosion-resistant, including a stainless steel valve stem that controls a high-temperature EPDM paddle rated for fluids between 32°F to 240°F and up to Grundfos UP Zone Valves, continued50% glycol. Other standard features include a manual open/close lever and an easily removable bottom cap for cleaning out the valve without removing it from the pipeline.

Grundfos UP Zone Valves are offered in three different sizes: 1/2-inch, 3/4-inch and 1-inch with sweat connections, with or without an end switch. Also available is a 3/4-inch model with NPT (threaded) connections, again with or without the end switch. All models are UL-listed in the United States and Canada.

For more information on Grundfos UP Zone Valves, visit: http://www.grundfos.us/

ABOUT GRUNDFOS PUMPS:

Grundfos Pumps Corporation, part of the Grundfos Group, is a global pumps and pumping systems leader serving the residential, commercial-building and process-industry markets, as well as being a major supplier to the water-supply and water-treatment industries. Founded in 1945 in Bjerringbro, Denmark, The Grundfos Group is a worldwide enterprise that employs more than 18,000 people in 81 countries with North American headquarters in Olathe, Kan.

For more information, visit the website at www.grundfos.us.

For editorial assistance, contact Tom Phillips, Grundfos Pumps in Olathe, Kansas; tel.: 913.227.3411; E-mail: tphillips@grundfos.com.

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IMAGE GALLERY: Grundfos UP Two-Way Zone Valves for hydronic heating applications.

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