
| Design & Manufacture | API 602 |
| Inspection & Test | API 598 |
| Socket-weld Dimension | ASME B16.11 |
| End Threads Dimension | ASME B1.20.1 |
| Pressure-temperature Ratings | ASME B16.34 |
| Part Name | Materials | |||
| 1 | Body | ASTM A105 | ASTM A 182 F304 | ASTM A182 F316 |
| 2 | Disc | ASTM A105 | ASTM A 182 F304 | ASTM A182 F316 |
| 3 | Stem | ASTM A182 F6 | ASTM A 182 F304 | ASTM A182 F316 |
| 4 | Bonnet | ASTM A105 | ASTM A 182 F304 | ASTM A182 F316 |
| 5 | Gland Flange | ASTM A105 | ASTM A 182 F304 | ASTM A182 F316 |
| 6 | Stem Nut | ASTM A276 410 | ||
| 7 | Hand Wheel | ASTM A197 | ||