THESE 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 button for easier installation and servicing. The compact in-line actuator provides a high gear ratio that eliminates gear-tooth stress, water hammer and valve "bouncing" for virtually silent operation.
Grundfos
CIRCLE 112 ON INQUIRY CARD