| Technical Specification |
| - Size：DN40-DN800 |
| - End：ISO PN6/10/16 |
| - Work Pressure：PN16 DN50-DN400 |
| PN10 DN450-DN800 |
| - Work Temperature：-20℃～100℃ |
| Main Components and Materials | ||
| NO. | Description | Material |
| 1 | Body | GG/GGG/Carbon Steel/Stainless Steel |
| 2 | Disc | GGG/Carbon Steel/Stainless Steel/Duplex Stainless Stee |
| 3 | Pin | SS304/SS316/A890 Gr5A/6A |
| 4 | Inner | GGG/WCB+NBR/EPDM/VITON |
| 5 | Spring | SS304/SS316/Inconel |
