| Model | WS-12 | WF-12 |
| Operation | Energized open | |
| Size | 10 - 65mm | 15 - 65mm |
| Applicable fluid | Water, air, inert gas & oils | |
| Applicable pressure | 0 - 1.0MPa | |
| Applicable temperature |
5 - 60 Deg.C | |
| Materials | Body : Cast bronze, Diaphragm : NBR | |
| End connection | Screwed JIS Rc | Flanged JIS 10KFF |