| Feature | Direct type / Ductile cast iron / Screwed | |
| Type | Direct operated bellows type | |
| Specifications | Application | Steam |
| Reduced pressure | 0.02 - 1.0MPa | |
| Connection | JIS Rc screwed | |
| Min. differential pressure | 0.05MPa | |
| Max. pressure reduction ratio | 10:1 | |
| Max. temperature | 220 degree(C) | |
| Material | Body | Ductile cast iron |
| Valve | Stainless steel | |
| Valve seat | Stainless steel | |
| Bellows | Phosphor bronze | |