Manway Selection Chart
| Configuration | Process | Application | Max Pressure Rating for Largest Size |
Cover Locking Mechanism | Max ID | Materials |
|---|---|---|---|---|---|---|
| Quick Opening Circular | ||||||
| QOD | Forged | Pressure or Vacuum | 250 | Pins | 30" | Carbon or Stainless Steel |
| Ellipticals | ||||||
| Yoke & Bolt | Formed Cover | Pressure Only | 1000 | Yoke with Bolts & Nuts | 18x24" | Carbon Steel |
| Yoke & Bolt with machined cover | Formed Cover | Pressure Only | 2000* | Yoke with Bolts & Nuts | 18x24" | Carbon Steel |
| Clamp Bolt | Formed Cover | Pressure or Vacuum | 600 | Clamps, Bolts & Nuts | 12x16" | Carbon Steel |