VPD Series

In working differential pressure range, cartridge will move and change the flow area to keep the flow constant when system pressure fluctuates. (See Fig.1)

Note: Small size dynamic balancing valve has one cartridge while large size valve has one or several cartridges, to set different flowrate by different cartridges.

Jonhson Controls is a global diversified technology and industrial leader serving customers in more than 150 countries. Our 162,000 employees create quality products, services and solutions to optimize energy and operational efficiencies of buildings; lead-acid automotive batteries and advanced batteries for hybrid and electric vehicles; and interior systems for automobiles. Our commitment to sustainability dates back to our roots in 1885, with the invention of the first electric room thermostat. Through our growth strategies and by increasing market share we are committed to delivering value to shareholders and making our customers successful. In 2011, Corporate Responsibility Magazine recognized Johnson Controls as the #1 company in its annual “100 Best Corporate Citizens” list. For additional information, please visit http://www.johnsoncontrols.com.

Johnson Controls Building Efficiency delivers products, services and solutions that increase energy efficiency and lower operating costs in buildings for more than one million customers. Operating from 500 branch offices in more than 150 countries, we are a leading provider of equipment, controls and services for heating, ventilating, air-conditioning, refrigeration and security systems. We have been involved in more than 500 renewable energy projects including solar, wind and geothermal technologies. Our solutions have reduced carbon dioxide emissions by 16 million metric tons and generated savings of $19 billion since 2000. Many of the world’s largest companies rely on us to manage 1.5 billion square feet of their commercial real estate.