Product Name: ASTM B148 C95800 Wafer Butterfly Valves
Standard: API 609
Body Material: ASTM B148 C95800 Aluminum Bronze
Seat Material: EPDM Rubber
Size: 4 Inch (DN100, 100 mm)
Pressure Rating: Class 150 LB, PN20
End Connection: FF
Source: https://www.landee.cn/astm-b148-c95800-butterfly-valves-api-609-4-inches-wafer.html