Sanitary Manhole Covers
Oval Manhole Cover
Oval covers for access through a narrow tank shell.
View specifications →Sanitary Manhole Covers
Rectangular Manhole Cover
The largest access a tank head will take, for vessels that are entered rather than reached into.
Overview
What This Pump Does
Rectangular manhole covers give the largest opening of the cover types, which is what matters when equipment has to pass through or an operator has to enter the vessel.
They are built in stainless steel to match the vessel, with a gasket chosen for the product and cleaning chemistry, and are supplied with new tanks or as replacements on existing openings.
| Cover type | Rectangular manhole cover |
|---|---|
| Material | Stainless steel matched to the vessel |
| Access | Largest opening of the cover range |
| Gasket | Selected for product and cleaning chemistry |
| Sizing | Confirmed against opening length and width |
Key Benefits
When The Opening Size Decides
Largest Usable Access
A rectangular opening takes equipment and personnel that a round or oval cover will not.
Suits Large Vessels
Common on bigger tanks where internals have to be removed for maintenance.
Stainless Construction
Matched to the vessel material and internal finish.
Gasket Selected For The Cycle
Elastomer chosen for the product and the cleaning chemistry, not by default.
Application Scenarios
Where It Is Installed
Vessel Entry
Openings sized for an operator to enter for inspection or cleaning.
Internals Removal
Taking agitator components or baffles out of a vessel.
Large Storage Tanks
Access on bigger vessels where a small cover is impractical.
Who It Is For
- Tank fabricators
- Food and beverage plants with large vessels
- Chemical plants
- Maintenance teams working inside vessels
Problems It Solves
Equipment will not pass the opening
A rectangular opening is sized for what has to go in and out, not just for a hand and an eye.
Confined entry is difficult
A larger opening improves safe access for entry work.
Sealing a large opening
Cover design and correct gasket selection are what make a large opening seal reliably.
Technical Features
How It Is Built
- Rectangular access cover for tanks and vessels
- Largest opening of the cover types
- Stainless steel construction
- Gasket selected for product and cleaning chemistry
- Supplied with new vessels or as a replacement
- Sized against the existing opening
Specifications
Technical Data
Sizes are confirmed per vessel. Send opening length, width, frame details and a photograph.
| Cover type | Rectangular manhole cover |
|---|---|
| Material | Stainless steel matched to the vessel |
| Access | Largest opening of the cover range |
| Gasket | Selected for product and cleaning chemistry |
| Sizing | Confirmed against opening length and width |
Materials And Process
What Goes Into Every Unit
Materials
- Stainless steel cover and frame
- Gasket material for the duty
- Polished internal surface
Manufacturing And Assembly
- Cover forming and machining
- Frame preparation
- Polishing
- Fit check before dispatch
Quality Control
- Dimensional check on the opening
- Seal fit verified
- Documentation with the order
Customization Options
- Opening length and width
- Gasket material
- Hinge and closure arrangement
- Internal finish
Compared With Other Options
| Oval manhole cover | Oval is easier to seal and lighter. Rectangular gives the largest opening. |
|---|---|
| Round manhole cover | Round seals most reliably but limits what can pass through. |
Use Guide
Specifying A Large Access Cover
Decide What Must Pass
Size the opening around the largest item that has to go in or out, including people.
Measure The Frame
Opening length, width, frame details and gasket groove, with a photograph.
Plan The Closure
Large covers need even clamping. Confirm the closure arrangement before ordering.
Check Entry Procedures
Vessel entry is confined space work. The cover design should support the site procedure.
Answers
Rectangular Manhole Cover FAQ
When is a rectangular cover the right choice?
When the opening has to take equipment or an operator, which a round or oval cover of the same shell area will not.
Can you make one for an existing tank?
Yes. Send the opening dimensions, the frame details and a photograph.
Which material?
Stainless steel matched to the vessel.
Is the gasket included?
Yes, chosen for the product and the cleaning chemistry and temperature.
Do you supply the frame as well?
Tell us whether you need cover only or cover and frame and we will quote accordingly.
Related Equipment
Related Equipment From The Same Line
Other covers and the vessels they are fitted to.
Sanitary Manhole Covers
Round Manhole For Tank
Round stainless manhole covers for process and storage tanks.
View specifications →
Sanitary Manhole Covers
Pressure Round Manhole Cover
Pressure rated round covers for vessels above atmospheric.
View specifications →
Stainless Steel Tanks And Vessels
Stainless Steel Tank
The full range of stainless vessels built in the fabrication shop.
View specifications →Keep Reading
Industries Guides And Solutions
Need Rectangular Manhole Cover Sized For Your Duty Point
Send opening length and width with a photograph of the frame and we will quote the cover.