Product Item: API 6D Swing Check Valves
Type: Swing Type Check Valve
Design Standard: API 6D
Size: 3 Inch
Pressure: Class 150 LB
Connection Ends: RF Flanged
Body Material: ASTM A216 WCB
Disc Material: ASTM A216 WCB + 13Cr
Seat Material: ASTM A105 + STL
Source: https://www.landee.cn/api-6d-swing-check-valves-astm-a216-wcb-3-inch-cl150-lb.html