
Adjustable Double Flange Spring Micro Opening Safety Valve Over Pressure Protecting Device for Gas
Meterial of main parts
| Part name | Meterial |
| Body | WCB; CF8; CF8M; |
| Adjusting ring | SS416 / SS304 |
| Allen bolits | Carbonization process |
| Spring | 50CrVA |
| Bonnect | Gray iron,ductile iron,cast steel |
| Stem | Stainless steel |
| Bolt | Carbon steel,ally steel |
| Seat | SS416 / SS304 |

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