Pressure relief valves automatically open when system pressure exceeds a set limit, diverting flow to a safe location to prevent pump damage, gasket failures, burst lines, or unsafe operating conditions. Once pressure normalizes, the valve reseats to restore normal flow.

Over Pressure Relief Protection
Williams-Carver provides reliable sanitary and industrial pressure relief valves engineered to safeguard pumps, piping, and process vessels from damaging overpressure events. Our offerings include spring-loaded relief valves, back-pressure regulators, and CIP-friendly sanitary safety valves designed for food, beverage, dairy, pharmaceutical, and general industrial applications.
With stainless-steel construction, precise cracking pressure settings, and cleanable designs, these valves ensure consistent system protection while maintaining product integrity. Whether upgrading an existing line or designing a new system, Williams-Carver delivers proven pressure control solutions tailored to your process.
Pressure Relief Options

60R Series: Pressure Relief Valves
The 60R Series pressure relief valve is engineered to safeguard sanitary and industrial processing systems by automatically relieving excess pressure and preventing over-pressurization. Its stainless-steel construction and hygienic design make it ideal for food, beverage, and pharmaceutical applications, ensuring both safety and compliance without compromising system cleanliness.

WR60 & WR80 Series: Over-Pressure Relief Valves
The WR60 & WR80 series valve is an adjustable pressure relief valve or pressure safety valve allows users to set the desired relief cracking pressure right at the valve by simply turning the adjustment screw. Installing a pressure-relief valve can protect pumps in a process line by allowing the pump to discharge pressure if it exceeds the cracking pressure set on the valve.
Frequently Asked Questions
Selection depends on system pressure, flow rate, cleanliness requirements, and whether the process requires sanitary or industrial construction. Williams-Carver helps specify spring settings, valve style, and materials to ensure proper protection for your pump or process line.


