Product Name: ASTM A351 CF3M Y Strainers
Standard: ASME B16.34
Body Material: ASTM A351 CF3M
Screen Material: SS 316L
Size: 1/2 Inch, DN15
Pressure Rating: Class 800 LB, PN130
End Connection: Butt Weld (BW), Ø21.3 mm × 2.77 mm

Source: https://www.landeevalve.com/stainless-steel-y-strainer-asme-b16-34-cf3m-1-2-in-cl800.html