Our round manway covers are flat steel plates, punched to bolt directly to the flange of a SteelFront round storage tank manway. Choose the same diameter and hole pattern as your manway, and add a Fibreflex gasket in the same diameter. SteelFront covers are made to match SteelFront manways.
Cover weight by diameter and thickness (lb)
| Diameter | 1/4″ | 5/16″ | 3/8″ | 1/2″ | 5/8″ | 3/4″ |
|---|---|---|---|---|---|---|
| 16″ | 23 | 29 | 35 | 46 | 58 | 69.5 |
| 18″ | 28 | 35 | 42 | 56 | 70 | 84 |
| 20″ | 33 | 41.5 | 50 | 66 | 82.5 | 99 |
| 24″ | 45 | 56 | 67 | 90 | 112 | 134.5 |
| 30″ | 68 | 84.5 | 101.5 | 135.5 | 170 | 203 |
| 36″ | 93 | 116 | 139.5 | 186 | 232.5 | 279 |
Weights are catalog shipping weights. Covers over 70 lb ship by freight.
Choosing a cover
- Diameter and holes: must match the manway, single punched to single punched or double punched to double punched.
- Thickness: thicker plate stays flat across larger openings and under liquid head. Many builders match the cover to the flange thickness. Follow your tank design.
- Handling: 30″ and 36″ covers in 1/2″ plate and up weigh well over 100 lb. Plan for a davit, hoist or two-person lift.
Price
Covers range from $244.87 for a 16″ cover in 1/4″ plate to $1,555.22 for a 36″ double-punched cover in 3/4″ plate. Select your options to see the exact price.
Questions
Does this fit a manway from another supplier?
Only if the bolt circle, hole count and hole size match. It is made to fit SteelFront manways.
Is it a hinged cover?
No. It is a bolted blind cover. For hinged or davit covers, contact Wifco Steel Products, our parent company and manufacturer, about a custom request.
See every manway part in the tank manways category.
Ordering and shipping
Every option above has a posted price, so you can order one part or a full set for a tank build without asking for a quote. Parts ship from Hutchinson, Kansas to addresses in the United States, and anything over 70 lb ships by freight. You can also choose free local pickup at our Hutchinson plant at checkout. Questions about fit or quantity? Call (800) 258-1392, Monday to Friday, 8am to 4pm CST.
