| MAIN VALVE | ||
|---|---|---|
| Part | Material | ASTM Specification |
| Body | Ductile Iron | A536 Grade 65-45-12 |
| Bonnet | Ductile Iron | A536 Grade 65-45-12 |
| Bonnet Fasteners | Carbon Steel | A307 Grade B |
| Diaphragm | Nylon Reinforced Natural Rubber/ EPDM/ NBR | |
| Spring | Stainless Steel | A276 Type 304 |