1 Inch (in) Nominal Pipe Size and 0.500 Pound Per Square Inch (psi) Standard Cracking Pressure UR Style Universal Low-Pressure Check Valve

The Universal Low Pressure (U3, UR) check valve is a one piece body machined from bar stock and is designed for minimum pressure drop. The valve has a light-weight, compact design that provides maintenance-free, dependable service. NPT threads are per ASME B1.20.1. Also available with ISO 7 “Rp” threads. (UR). These valves can also be used as a low pressure relief valve or vacuum breaker by using the desired spring settings.