- Paving
- Electrical Engineering and Telecoms Infrastructure
- Civil Engineering, Mining, Railway, Building and Plumbing Products
- Curbs / Kerbs
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- Moulds
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- Avalon range
- Builders' and Plumbers' Products
- Benches and Seats
- Concrete Tables
- Grass Blocks
- Litter/Refuse Bins
- Pots and planters (Discontinued)
- Tree rings
- Bollards and Barriers
- Stone Cellar Blocks
- Water features (Discontinued)
REPLACEMENT MANHOLE COVERS
VANSTONE'S DROP-IN REPLACEMENT COVERS
Traditional cast iron manhole covers are being stolen, leaving the manholes open and dangerous.
With Vanstone's Drop-in Replacement Covers, you can now almost instantly change
FROM THIS
Open and dangerous
TO THIS
Safe and strong
Manhole covers were traditionally made of cast iron to standard sizes and load bearing strengths specified in SANS 588. Because of the high scrapmetal value of cast iron, the covers are being lifted, stolen and sold on a large scale. This leaves scores of open manholes that are unsafe and dangerous.
The old cast iron frames were built in, and that makes it more difficult to remove. It has to be chopped out. The old frames are mostly left in place.
Closing up the open manhole presents a new challenge. Various solutions have been tried:
- Replacing a cover with another cast iron one is futile as it is soon stolen again.
- Mild steel replacement covers are also taken.
- Locks if fitted are easily broken.
- Most polymer and concrete covers have thick edges that protrude above the surface and generally does not fit the old frames.
- Make-shift replacements are unreliable and unble to withstand the loading as per the original SANS covers and are unsafe.
- Replacement with a new cover and frame is a major operation. It requires a skilled building team and it takes time to organise and do.
Visit the Gallery to see some samples
VANSTONE REPLACEMENT COVERSVanstone developed reinforced concrete covers with special thin galvanized steel rims. These covers drop perfectly into the standard frames and usually require no further work. Some steel is visible but the covers are mainly concrete, heavy and not attractive to thieves. See standard sizes below.
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Vanstone Type 2A Drop-in Replacement CoverFits standard 2A cast iron frame |
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Standard Square and Rectangular Replacement CoversFits standard cast iron frames, most of which were commonly manufactured is SA under SANS 558. The replacemnet covers are medium duty. As such it will withstand occasional heavy vehicles wheel loads travelling dead slow. It is not suitable for roadway installation. See below for standard sizes |
STANDARD SIZES
|
Standard Type |
Clear Opening mm |
Cover Size mm |
Click for drawing | Vanstone Code | Comment |
| 2A | 560 diameter | 627 diameter x 150 | drawing | P2-1575/1 | EHD for roadway |
| 8A | 600 x 450 | 750 x 594 x 80 | drawing | P2-1590/8A | MD. No double seal for replacement cover. 13mm gap around. |
| 9B | 600 x 600 | 675 x 675 x 80 | drawing | P2-1590/9B | MD |
| 9C | 600 x 450 | 672 x 520 x 80 | drawing | P2-1590/9C | MD |
| 9D | 600 x 450 | 680 x 527 x 80 | drawing | P2-1590/9D | MD |
| 9E | 900 x 600 | 990 x 685 x 80 | P2-1590/9E | MD | |
| 14A | 267 x 267 | 292 x 292 x 50 | drawing | P2-1590/14A | MD |
| 14B | 450 x 450 | 490 x 490 x 60 | drawing | P2-1590/14B | MD |
| "25kg" | 600 x 450 | 647 x 495 x 80 | drawing | P2-1591/25kg | MD - Original cover was light weight, not SANS. |
EHD: Extra heavy duty suitable for use in the roadway. Not for airport airside, dockside or similar.
MD: Medium duty for occasional heavy vehicle wheel loads moving slowly. Not for roadway.
More standard sizes will be developed when justified by demand. Ask for a quote.
How do I know which standard size is my manhole frame?
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