butterfly valve exploded view
PARTS LIST AND MATERIAL SPECIFICATION
| NO. | Part name | Material |
| 1 | Body | ASTM A536 65-45-12, WCB, CF8M |
| 2 | Disc | ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462 |
| 3 | Seat | EPDM,NBR,FRM.PTFE |
| 4 | Stem | SS420,SS431 |
| 5 | Lower Stem | SS420,SS431 |
| 6 | Retalner | Nylon for DN50-DN300, SS304 for DN350-DN2000 |
| 7 | Bearing | RPTFE with Graphite on I.D. |
| 8 | Weather seal | NBR |
| 9 | Nuts | Stainless steel |
| 10 | Plug | Steel galvanized for DN50-DN300, Cover plate for
DN350-DN2000 material same as body with SS304 bolts |
| 11 | Screw | SS304 |
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