Product Name: ASTM A182 F44 Gate Valve
Type: Gate Valve
Standard: API 602
Body Material: ASTM A182 F44
Size: 1 Inch, DN25, 25 mm
Pressure Class: Class 150 LB, PN20
End Connection: Flanged, Flat Face (FF)

Source: https://www.landee.cn/astm-a182-f44-gate-valve-api-602-1-inch-cl150-ff-flanged.html