Watertight manhole cover SD6, round type

Q: "What does surface-watertight mean?"

"The term \"surface-watertight\u201d means that the manhole cover is protected against the ingress of natural precipitation such as rain or other surface water that occurs without pressure."

Q: "What is meant by flood-proof or backwater-proof manhole covers?"

"We speak of a flood-proof cover when it is flooded, for example, by high water. The manhole cover remains resistant to water penetration up to a certain water column. A backwater-proof manhole cover prevents water from penetrating from the inside of the manhole to the outside."

Manhole cover, watertight up to 3.2 ft. / 1 m under water, round in shape, constructed entirely of 1.4307 (AISI 304 L) stainless steel.

In accordance with DIN 1239:2018-4, suitable for use in Ex zone 1.

Manhole cover, watertight up to 1 m head of water, round in shape, completely made of 1.4307 (AISI 304 L) stainless steel.
In accordance with DIN 1239:2018-4, suitable for use in Ex zone 1.

The cover is constructed from stainless steel plate with a centrally raised profile, featuring robust external hinges, a stainless steel gas-assisted spring damper, and an integrated hand-release arrestor. It includes a handle and a circumferential frost-proof, weather-resistant rubber seal fixed in a slot. Equipped with a central lock and a brass protective hood, it can only be opened with a specialized key for added security.
A connection for potential equalization is provided.

The frame consists of an angle section 1.9/1.9 in. / 50/50 mm for bolted fixing, with two internal lift locks. Manhole cover and frame shielded arc-welded, acid-treated in a pickling bath and passivated. Fixing material, gasket strip and operating key included.

HUBER manhole cover SD6, round type, watertight up to 197 in. / 5 m

HUBER manhole cover SD6, multiple screwed

HUBER manhole cover SD6 with central lock, 1 m water column

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Options

1.4404 (AISI 316 L) stainless steel
Insulation of the cover, without FCKW
Safety lock for increased security, with or without profile cylinder
Non-standard sizes
Magnetic contact
Flood proof up to 16.4 ft. / 5 m head of water, with multiple screw connections (clear opening dimensions to be taken into account)

For use in facilities in contact with ozone, 1.4404 stainless steel, with silicone seal, without gas pressure spring
Back-up proof up to 7.25 psi / 0.5 bar, with multiple screw connections (clear opening dimensions to be taken into account)
Unscrewable air vent with X-piece to seal the vapor hood opening in case of danger of flood water
Safety guard / anti-fall guard

Downloads

Customer Information and Documents

Datasheet: Watertight manhole cover SD6, round type Complete planning documents package for watertight manhole cover SD6 Flyer: Protect your infrastructure from flooding and other weather extremes

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FAQ

Frequently Asked Questions

The term "surface-watertight” means that the manhole cover is protected against the ingress of natural precipitation such as rain or other surface water that occurs without pressure.

We speak of a flood-proof cover when it is flooded, for example, by high water. The manhole cover remains resistant to water penetration up to a certain water column. A backwater-proof manhole cover prevents water from penetrating from the inside of the manhole to the outside.

Case Studies