The 599 Series zone valve and actuator line has zone valves with all-metal seating surfaces and stroke action for a tight, secure, long-life seal, states the company. The zone valves feature a direct-coupled design that requires no tools for installation; the actuator screws onto the valve body by hand. The valves also feature manual override, visual position indication, and automatic reset after power interruption.

Siemens Building Technologies Inc., 1000 Deerfield Pkwy., Buffalo Grove, IL 60089; 847-215-1000; 847-215-1093 (fax);

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