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  2. Rain gutter - Wikipedia

    en.wikipedia.org/wiki/Rain_gutter

    The water drains into a gutter that is fed into a downpipe. A flat roof should have a watertight surface with a minimum finished fall of 1 in 80. They can drain internally or to an eaves gutter, which has a minimum 1 in 360 fall towards the downpipe. [11] The pitch of a pitched roof is determined by the construction material of the covering ...

  3. Downspout - Wikipedia

    en.wikipedia.org/wiki/Downspout

    Downspouts are usually vertical and usually extend down to ground level, although may be routed at an angle to avoid architectural features and may discharge onto an intermediate roof. At the bottom of downspout there are typically features to divert discharged water away from the building's foundations to prevent water damage.

  4. Invert level - Wikipedia

    en.wikipedia.org/wiki/Invert_level

    Invert level affects flow from drainage pipes In civil engineering , the invert level is the base interior level of a pipe, trench or tunnel ; it can be considered the "floor" level. [ 1 ] The invert is an important datum for determining the functioning or flowline of a piping system.

  5. Leader head - Wikipedia

    en.wikipedia.org/wiki/Leader_Head

    Copper Leader Head at Penn's Quadrangle, Philadelphia 1894 Copper Leader at Shofuso Japanese House and Garden in Philadelphia. The purpose of a leader head is to help transfer excess water from the roof onto downspouts, thus preventing the gutters from overflowing and water washing over the walls, which is a common occurrence in areas susceptible to heavy rain cycles.

  6. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    [22]: 149 Instead, pipe and fittings with plain (non-belled) connections are butted against each other, and clamped with special rubber sleeve (or "no-hub") fittings. [19]: 71 The rubber sleeves are typically secured with stainless steel worm drive clamping bands, which compress the rubber to make a tight seal around the pipes and fittings.

  7. Sleeve (construction) - Wikipedia

    en.wikipedia.org/wiki/Sleeve_(construction)

    For example, a 4" pipe, with 1" of thermal insulation makes a 6" penetrant (1" pipe covering on each side of the pipe), plus two pipe sizes = an 8" sleeve, creating a 1" annulus. In case of insulated piping, the size of the insulation must be taken into account for the intended firestop certification listing .

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  9. Sleeve valve (water) - Wikipedia

    en.wikipedia.org/wiki/Sleeve_valve_(water)

    Inline sleeve valve can be installed in the pipeline or at the end of the pipeline for free discharge. Inline sleeve valve have an inlet section which allows upstream media to flow into an outer annular area. The flow then takes a 90° turn through the sleeve and collides with flow from the opposite side dissipating the energy.

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