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Automatic Control Valves



Dual Limit Switch

Lead Free* Models Available


2 - 8 in.


The Model 51-1 Dual Limit Switch provides visual indication of valve
position, as well as remote electrical indication of “valve open” and
“valve closed”. The single pole double throw Micro-Switches can be connected to open or close an electrical circuit when the valve opens or closes.
The adjustable collars are normally set to contact the trip arms
to indicate “valve open” and “valve closed”. The collars can be
positioned on the stem by loosening the set-screws to actuate the
switches at the desired point of valve travel.

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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.

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