Product Name: Automatic Recirculation Valve, ARC Valve
Size: 4 Inch, DN100, 100 mm
Pressure Rating: Class 1500 LB, PN250
Body Material: Carbon Steel ASTM A105
Trim Material: SS 304
End Connection: RF Flanged
Surface Treatment: Epoxy Coating
Source: https://www.landee.cn/automatic-recirculation-valve-astm-a105-4-inch-cl1500-rf.html