Our selection of Butterfly Valve Adapter 4020 Flanges, also known as “402’s”, are a quick and useful option for mounting Butterfly Valves to a Tank or Trailer. These 402 Flanges are available in ASTM A105 Mild Steel. These flanges are available at discount prices!
Downloads:
| API Part Number | Nominal Size | O.D. | Serrations Dia. | B.H.C. Dia. | I.D. | # of Bolts | B.H. Dia. | THK |
| 402028000 | 4 | 8.000 | 6.250 | 7.031 | 4.032 | 6 | 0.563 | 0.469 |
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