Types of stainless steel manhole covers

Release Time:

Apr 09,2025

316 stainless steel manhole cover: containing molybdenum element, stronger corrosion resistance, suitable for coastal or chemical environment.

Classification by material
304 stainless steel manhole cover: good corrosion resistance, suitable for general environment.
316 stainless steel manhole cover: containing molybdenum element, stronger corrosion resistance, suitable for coastal or chemical environment.
201 stainless steel manhole cover: low cost, suitable for places with low anti-corrosion requirements.
Classification by structure
Common type: the manhole cover is directly connected with the well seat, suitable for sidewalks, green belts and other areas.
Invisible type: the surface of the manhole cover is flush with the ground, floor tiles or lawn can be laid, suitable for square, park and other landscape areas.
Anti-settlement type: the manhole cover and the well seat are connected in a special way to prevent the manhole cover from sinking, suitable for motor vehicle lanes.
Classification by use
Rainwater manhole cover: used for drainage system, there are usually drainage holes on the surface.
Sewage manhole cover: used for sewage pipes, with good sealing performance to prevent peculiar smell leakage.
Power manhole cover: used for cable trench, need to have insulation performance.
Communication manhole cover: used for communication pipeline, easy to open and maintain.

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