Show or Hide


S110-14, S1110-14

On-Off (4" & smaller) for Adjustable High and Low Levels

Lead Free* Models Available


The WATTS ACV On-Off Float Control Valve is designed to open fully or close drip-tight as commanded by the Float Control Pilot. The Float Pilot may be either valve or remote mounted. The valve closes drip tight when water level reaches the adjustable high-level setpoint, and open fully when water level is below the adjustable low-level setpoint, allowing a calculated "draw-down" of water level to increase tank circulation. High and low levels are separately adjustable by positioning stop collars on the float rod(s) at desired opening and closing setpoints.

If desired, the on-off action of the valve can be "reversed" by modifying the hydraulic connections of the On-Off Float Pilot.

Loading Models/UPC Codes...
Loading Models...

To preview and download CAD Drawings for this product, please select a model/size from the list.

Loading Approvals...
Loading warranty information...
Loading data...

Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

Please Note: Watts literature requires Adobe Acrobat Reader to view.

*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.

Additional Information

Danger – Scalding Lurks!

Every year, thousands of people suffer serious thermal shock or scalding injuries in their bathtubs, sinks and showers.

Click here for informative resources to help you protect against these dangers.

Learn About

Thermostatic Mixing Valves

Every year thousands suffer injuries as a result of hot water scalding and thermal shock injuries. Thermostatic mixing valves protect against these dangers.

To learn more about thermostatic mixing valves and how they work, click here.