API 6A Mud Gate Valve 1.Size:2"-5" 2.Pressure:1000psi,3000psi,5000psi 3. ... DD, EE, FF, to NACE MR-01-75 mud gate valve, API 6A gate valveSerial No.NameMaterialSerial No.NameMaterial1Valve bodyAISI 4135 ... ,0458Packing ringNBR+42018Cotter pinMetal9Middle packing42019Grease nippleH6210Washer420 API 6A mud gate valve