Construction and description of materials of welded ball valve ALSO DN 65 PN 25
Material of main parts
Specification of materials by design
| No. | Part | ||||
| 01 common execution | 02 cold resistant | 03 corrosion-resistant | |||
| 1 | handle | st. 3 (carbon steel) | st. 3 (carbon steel) | st. 3 (carbon steel) | |
| 2 | nut bolt | galvanized steel | galvanized steel | galvanized steel | |
| 3 | sealing ring | fluorosiloxane | fluorosiloxane | fluorosiloxane | |
| 4 | ring | F4К20 (PTFE +20% С) | F4К20 (PTFE +20% С) | F4К20 (PTFE +20% С) | |
| 5 | rod | AISI 420 | AISI 420 | AISI 321 | |
| 6 | spring | st. 65G (galvanized spring steel) | сst. 65G (galvanized spring steel) | - | |
| 7 | support ring | st. 08PS (carbon steel) | st. 08PS (carbon steel) | st. 08PS (carbon steel) | |
| 8 | seat seal | fluorosiloxane | fluorosiloxane | fluorosiloxane | |
| 9 | seat | F4К20 (PTFE +20% С) | F4К20 (PTFE +20% С) | F4К20 (PTFE +20% С) | |
| 10 | ball | DN 10-32: AISI 420 | DN 10-32: AISI 420 | AISI 321 | |
| DN 40, 65: AISI 304 | DN 40, 65: AISI 304 | AISI 321 | |||
| DN 50, 80-300: AISI 409 | DN 50, 80-300: AISI 409 | AISI 321 | |||
| DN 350-600: AISI 321 | DN 350-600: AISI 321 | AISI 321 | |||
| 11 | neck | st. 20 (carbon steel) | st. 09G2S (low-alloy steel) | AISI 321 (corrosion-resistant steel) | |
| 12 | body | st. 20 (carbon steel) | st. 09G2S (low-alloy steel) | AISI 321 (corrosion-resistant steel) | |
| 13 | branch pipe | st. 20 (carbon steel) | st. 09G2S (low-alloy steel) | AISI 321 (corrosion-resistant steel) |
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