Design code
- Design conform to ASME B16.34
- Structural dimension：ASME B16.10
- Flange dimension：ASME B16.5 GB HG SH
- Inspection and test：API 598
- Pressure class：Class 150、300、600 PN 2.0 、5.0、10.0 MPa
Structural features
- While closing, the seat ring can get in touch with the sealing face gradually. then the double-eccentric center disc can work well without bump and noise.
- Flexible metal seat is of good seal performace.
- The disc with butterfly form has a long cycle life with quick open and close.