Material Specification
| name | material |
|---|---|
| Body | Ductile Iron A536 65-45-12 |
| Cover | Ductile Iron A536 65-45-12 |
| Clapper | Ductile Iron A536 65-45-12 +EPDM |
| Clapper Arm | Ductile Iron A536 65-45-12 |
| Hinge Pin | Stainless Steel AISI 304 |
| Seat | Bronze ASTM B62 Stainless Steel AISI 304 |


