概要
| 種類 | 記号 | 正式名称 | R | r |
| 平鏡板 | FH | flanged only heads | - | 3t以上 |
| 浅皿形鏡板 | FD | flanged and shallow dished head plate | 1.5D | 0.06D |
| 皿形鏡板 | SD | standard flanged dished heads | D | 0.1D |
| 半楕円体形鏡板 | ED | ellipsoidal dished heads | - | - |
| 深皿形鏡板 | DD | deep dished heads | 0.8D | 0.155D |
| 半球形鏡板 | HH | hemisherical head plate | 0.5D | - |
鏡板の形状
| + | ... |