Description
The Watts F121528 Pressure Relief Valve LF174A is a control system that releases excess pressure to prevent it from reaching the set pressure of 150 PSI and keeps the system from unsafe operating conditions. It is available in a 1.25-inch size and is typically used in boilers, water heating units and other HVAC systems that use controlled pressure discharge. The valve in the system will automatically open to piping and equipment from over-pressure at a set point and reclose when the operating pressure returns to normal.
