Robertshaw P1200 Pressure Operated Relief Valve

The RobertShaw Tempstat P1200 is a pressure-operated relief valve designed to respond to rising system pressure by opening at a defined setpoint, providing a controlled venting path to prevent overpressure in eligible RobertShaw Tempstat installations. Set to 100 psi, the P1200 opens when upstream pressure reaches 100 psi and re-seats as pressure falls, delivering automatic, repeatable protection without manual intervention. The P1200 designation identifies this specific model within RobertShaw’s Tempstat family, highlighting its role as a dedicated relief device that helps safeguard equipment and piping from dangerous pressure buildup. For reliable operation, installation should follow RobertShaw’s documentation and be matched to the system’s connection size and operating conditions; consult the company’s installation data and safety guidelines for model-specific instructions. Because relief valves are safety-critical components, following manufacturer guidelines for inspection, maintenance, and compatibility with system fluids helps ensure the P1200 continues to protect against overpressure.