WEFTEC 2000: Intelligent Valve

The type 8630/31 fully integrated Top Control head unit is designed for decentralized intelligent process control. This unit can interface with the manufacturer's complete line of ½-2-in. angle globe, ¼-turn ball, and diaphragm valves with an advanced top-down control technology. With seven different built-in flow characteristics, (three fast opening, one linear and three equal percentage) and the ability to design customized flow curves, the need for various internal valve trims is eliminated. The 8630/31 top control head also allows set point adjust to be done at the valve or externally via standard analog input signals. A wide variety of direct sensor inputs are also available including RTD, 4-20 mA, and frequency; as well as multiple electrical interfaces including ASI, Multipin, Cable Gland, Profibus and DeviceNET. The control head units are easily linked to existing process automation systems. These features help reduce installation and start up times, saving up to 40% of installation costs.

These decentralized intelligent controllers mounted on a valve and direct linked to a sensor, create an easy local control loop with enhanced communication capabilities. With accuracy better then 1%, the unit excels in applications requiring an advanced level of process automation such as chemical and pharmaceutical industry, textile, food and beverage processing, and water treatment facilities.

Burkert, 2602 McGaw Avenue, Irvine, CA 92614. Tel: 949-223-3100; Fax: 949-223-3165.