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Actuator-Ready Proportional Control Ball Valves from Hayward
Two Proportional Flow Rates with One Valve: Hayward ProFile2 corrosion resistant, actuator-ready proportional control ball valves provide two linear flow curves, one for fast opening and one for slow opening. The percentage of flow through the valves with either flow curve is equal to the degree of opening. As the actuator-ready proportional control ball valves are opened or closed, the flow varies in direct proportion to the valve opening. This permits predictable, accurate control of the downstream flow rate with a 1/4 turn valve.
Unique Design "Characterized" Ball: These actuator-ready proportional control ball valves utilize a unique, patented ball with a special "characterized" opening that results in the linear flow rate change. Valves are shipped with the ball installed sot that the smaller opening enters the flow first, creating the slow open rate. To switch to the fast opening rate, simply reverse the ball in the valve. Then the larger opening will enter the flow first, creating a large opening with slower changes.
Perfect with Positioners: Profile2 actuator-ready proportional control ball valves can be furnished with electric or pneumatic actuators with positioners for automated modulating service applications.
Never a Problem with Corrosion: Profile2 actuator-ready proportional control ball valves will never rust or corrode and they can survive corrosive environments and harsh weather conditions without the need for painting or expensive epoxy coating.