Product Name: ASTM A351 CK3MCuN Butterfly Valve
Type: Concentric Butterfly Valve
Size: 8 Inch, DN200
Pressure Rating: Class 150 LB, PN20
Body Material: ASTM A351 CK3MCuN
Disc Material: ASTM A890 4A
Stem Material: ASTM A479 S31803
Seat Material: EPDM
Operation: Worm Gear
End Connection: Wafer
Source: https://www.landee.cn/astm-a351-ck3mcun-butterfly-valve-8-inches-cl150-lb-wafer.html