The Universal Low Pressure (U3, UR) female threaded check valve is a one-piece body machined from bar stock and is designed for minimum pressure drop. The valve is light-weight, compact, and provides maintenance-free dependable service. NPT threads are per ASME B1.20.1 and this valve is also available with ISO 7 “Rp” threads (UR). For applications above 3000 PSIG, view our UN-10 series. For applications where weld joint are required view our UN-SW series.
Many valves in this series can be supplied with B16.34 certification. Give us a call for more information.