Product Item: Non-Rising Stem Gate Valve
Standard: API 600
Body Material: Carbon Steel ASTM A216 WCB
Size: 6 Inches
Working Pressure: 450 PSI
Trim Material: API Trim 8
Connection End: RF Flanged, Class 300 LB, per ASME B16.5
Design: Non-rising stem for underground installation

Source: https://www.landeevalve.com/api-600-non-rising-stem-gate-valve-wcb-6-inches-cl300-lb.html