Product Name: Carbon Steel Swing Check Valves
Type: Swing Check Valve
Body Material: ASTM A216 WCB
Trim Material: 10#
Size: 4 Inch, DN100, 100 mm
Pressure Rating: Class 600 LB, PN100
End Connection: RF Flanged
Source: https://www.landee.cn/carbon-steel-swing-check-valves-a216-wcb-4-in-cl600-rf.html