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  2. Manhole cover - Wikipedia

    en.wikipedia.org/wiki/Manhole_cover

    By contrast, the heaviest class F900 manhole cover can withstand a maximum weight of 90 tons, making it suitable for docks, airports, and other extreme heavy-duty applications. [31] EN 124 does not apply for gratings of prefabricated drainage channels (according to EN 1433) or floor and roof gullies in buildings (specified in EN 1253-1). [30]

  3. Slot drain - Wikipedia

    en.wikipedia.org/wiki/Slot_drain

    Slot drain can be cleaned by moving along a cleaning paddle to move the sediment into a catch basin. Heavy Load Class. If the grates are not suitable for heavy loads, [3] the drains could quickly deteriorate, accidents could happen when traveling across the area with a forklift, vehicle, pallet truck, cart or pedestrians. The grates increase ...

  4. Grating - Wikipedia

    en.wikipedia.org/wiki/Grating

    Duty Cycle is the relative thickness of high and low lines. The duty cycle is the ratio of the width of the low line (black or opaque) to one whole grating period. Profile is the shape of the repeating pattern, which is typically a square wave but can also be any periodic pattern (sine wave, triangle wave, sawtooth wave, etc.).

  5. Trench drain - Wikipedia

    en.wikipedia.org/wiki/Trench_drain

    Concrete will need to be poured to surround the trench drain so that the load can be transferred from the channel and grate to the surrounding areas. Pre-cast trench drains generally come in 4-inch (100 mm) widths but can range anywhere from a 1.75-inch (44 mm) slot to 2-inch (51 mm) wide channels with grates, and up to any size imaginable ...

  6. Municipal castings - Wikipedia

    en.wikipedia.org/wiki/Municipal_castings

    Drainage Grate Municipal Casting. Municipal castings refers to many products, including: access hatches; ballast screens; benches (iron or steel); bollards; cast bases; cast iron hinged hatches, square and rectangular; cast iron riser rings; catch basin inlet; cleanout/monument boxes; construction covers and frames; curb and corner guards; curb openings; detectable warning plates; downspout ...

  7. Storm drain - Wikipedia

    en.wikipedia.org/wiki/Storm_drain

    Storm drain grate on a street in Warsaw, Poland Storm drain with its pipe visible beneath it due to construction work. A storm drain, storm sewer (United Kingdom, U.S. and Canada), highway drain, [1] surface water drain/sewer (United Kingdom), or stormwater drain (Australia and New Zealand) is infrastructure designed to drain excess rain and ground water from impervious surfaces such as paved ...

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