“Auto Seat Technology”®

“Auto Seat Technology”® is Mercer Valve’s patented soft seat relief valve design. “Auto Seat Technology”® increases seat life, reduces repairs, and gives the valve a consistent set pressure. “Auto Seat Technology”® is a non-rising stem design that uses low rated springs to achieve a consistent set pressure.

Learn More!

The History of Mercer Valve®


Mercer valve was founded by Wesley Taylor with his “Auto Seat Technology”® patent for pressure relief valves.

Mercer’s first valve line was the 8100 Series introduced in 1985. “Auto Seat Technology”® is incorporated in the valve design, allowing it to pop and reseat time and time again. Unlike the competition, the valve has a soft seat design with a fully guided disk and spring to help the valve have a longer life….

Learn More!