Product Item: ASTM A182 F11 Gate Valves
Type: Gate Valve
Standard: API 602
Body Material: ASTM A182 F11
Size: 1 Inch, DN25
Pressure: Class 1500 LB, PN250
Ends: Socket Weld

Source: https://www.landeevalve.com/api-602-gate-valves-astm-a182-f11-1-in-cl1500-sw-ends.html