Product Name: ASTM A182 F316 Swing Check Valve, SCRD/NPT
Type: Swing Check Valve
Design Standard: API 602
Body Material: ASTM A182 F316
Disc Material: ASTM A182 F316
Seat Material: ASTM A182 F316
Size: DN40, 40 mm, 1-1/2 Inch
Pressure Class: Class 150 LB, PN20
End Connection: NPT per ASME B1.20.1
Pressure Test Standard: API 598
Source: https://www.landee.cn/astm-a182-f316-swing-check-valve-api-602-1-1-2-inch-cl150.html