More information about manhole covers

The importance of a manhole cover

Manhole covers are an indispensable part of manholes for easy access during inspection and maintenance. The covers offer excellent protection to internal spaces – e.g. fuel tanks, oil tanks, water tanks and watertight compartments – from water infiltration, corrosion and contamination. While handholes close off openings that will only fit an arm or hand, manholes are large enough for an adult to enter through the opening.

The covers, such as a stainless steel manhole cover, are specially designed for easy opening and closing of manholes, allowing you to perform maintenance or inspection very efficiently and quickly. Choose a reliable seal with a manhole cover by Rob Snel.

Manhole covers come in round and oval versions. The oval version is available in the following variants:

Type A: Surface-mounted

Type B: Surface-mounted with coaming

Type C: Heavy-duty model with thick cover (flush)

Type D: Heavy duty model with thin cover (flush)

Manhole with one central bolt: maximum ease of use

Does your manhole need to be opened more often? Opt for a manhole with one central bolt. This manhole cover can be opened or closed very easily using a special key. In other words, optimal ease of use. These covers are available in three sizes: small (handhole), standard and large (ergonomic). Manholes with one central bolt are only available in a round design.

Manhole with one central bolt
(front)

Manhole with one central bolt
(back)

Spanner for manhole with single bolt

Manhole cover of stainless steel, steel or aluminium? Plenty of options

Rob Snel offers a wide range of manholes and manhole covers in numerous designs. We manufacture manholes of steel, aluminium and stainless steel, offering a choice between an oval or round shape for your manholes. Manholes consist of a manhole ring, manhole cover, a rubber gasket, bolts and possibly a coating. Depending on the version, a manhole cover is available with a standard cover or a thick cover.

We will be happy to advise you on the right application for your situation. Contact us to discuss the possibilities.
 

Choose maximum quality and safety with Rob Snel

Looking for a quality manhole cover? With Rob Snel, you choose:

• Stainless steel manholes of 316 stainless steel: excellent resistance to corrosion, chloride (salt) and acids;
• Aluminium manholes of 5083-H321: exceptionally strong and resistant to stresses in welded structures;
• A4 Stainless steel bolts: stainless steel and highly suitable in applications with high corrosion resistance, such as maritime environments.

 
The quality of our above-mentioned materials will provide you with a durable construction of your manhole cover in stainless steel, aluminium and steel while meeting all safety standards.
 

Buy your manhole covers at Rob Snel for your convenience

At Rob Snel, you will find covers specifically designed for shipbuilding. However, our manhole covers are also used in offshore projects, tank construction and industry. Curious about our solutions? Our specialists are happy to help with their expert knowledge and service. Contact us today for the right manhole cover for your application or ask us about the possibilities.