ACO USA

Technical

Apart from face to face contact and verbal communication, ACO offers a comprehensive documentation suite both electronically and in paper format to support this products. Please choose what kind of documentation you require below and download as required.

 

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  • Surface Drainage

    •   Trench Hydraulic Service

      ‘Hydro’ is a purpose written, hydraulic design program modeled on differential calculus for non-uniform flow in open channels. The program was created from empirical data, following a series of experiments modeling lateral intake into trenches. Analysis of the effect of slope, run length, and trench cross sectional profiles were incorporated into the program.

       

      Complex scenarios such as the effects of water inflow from down spouts or inlets along the length of the trench can also be modeled by the ‘Hydro’ program. ACO can use ‘Hydro’ to recommend optimum outlet positions along trench runs.

       

      To generate results from the ‘Hydro’ program, the following is required:

       

      • Length of trench run (feet or meters)

      • Length and width of catchment area (feet or meters)

      • Surrounding pavement/surface type, e.g., concrete, asphalt, etc.

      • Rainfall intensity (in/hr or mm/hr)

      • Ground fall along trench (%)

      • Perpendicular approach slopes to trench (%)

      • Preferred position of outlets along trench and any outlet size restrictions

      • Any slab depth restrictions

      Results are provided either electronically (PDF) and/or in printout format

       

    • Grate Hydraulic Service

      ACO has independently measured, by experimentation, the hydraulic intake capacities of ACO Drain grates. Tests were carried out under varying flow rates and catchment approach slopes. To determine the hydraulic utilization, each grate was tested until bypass occurred (point at which liquids would pass across grate).

       

      The Grating Intake Calculator (GIC) provides information on the catchment efficiency of the chosen grate. If the required liquid intake is greater than the grate’s performance, the extent of bypass (or failure) will be calculated. (click here for more info)

       

      To generate results from the ‘GIC’ program the follow is required:

      • Length of trench run (feet or meters)

      • Length and width of catchment area (feet or meters)

      • Position of trench in catchment area

      • Surrounding pavement/surface type, e.g., concrete, asphalt, etc.

      • Rainfall intensity (in/hr or mm/hr)

      • Perpendicular approach slopes to trench (%)

      • Preferred grate type

      Results are provided either electronically (PDF) and/or in printout format.

       

    • Run layout & scheduling

      CAD Design Service

       

      ACO can provide a cost-effective surface drainage solution to satisfy a project’s design requirements. Trench drain layouts will be designed to take full advantage of existing and proposed site grades, utilizing existing services where possible.

       

      In order to produce a plan layout, the following information is required:

      • Plan of site showing elevations

      • Existence of any depth restrictions

      • Position and type of any plumbing fixtures/outlets

      • Position of any permanent structures

      • Liquid flow pattern and type of traffic (including traffic flow)

       

      Results provided are:

      • Plan layouts (DWG/PDF) showing the trench drain positions relative to site structures

      • Installation drawings and specifications

       

       

    •   Ponding Analysis

      Temporary ponding is a short lived flood situation, which, in some circumstances, can be tolerated allowing an intentionally undersized trench drain system. It allows a more economical system to be used that will work effectively under most weather conditions, but will be slightly under designed for heavy storms.

       

      Ponding analysis should only be considered where buildings and property are not in close proximity to the drainage system to minimize risk of damage. It is an ideal option for the outer areas of large parking lots, distribution yards, etc., (Risk Analysis).

       

      The ponding analysis map shows the size and duration of the flood.

       

      In order to produce a ponding analysis, the following information is required:

       

      Information as required to run ponding analysis, including:-

      • Length of trench run (feet or meters)

      • Length and width of catchment area (feet or meters)

      • Surrounding pavement/surface type, e.g., concrete, asphalt, etc.

      • Rainfall intensity (in/hr or mm/hr)

      • Ground fall along trench (%)

      • Perpendicular approach slopes to trench (%)

      • Preferred position of outlets along trench and any outlet size restrictions

      • Any slab depth restrictions

      • Plan of site showing elevations

      • Existence of any buildings

       

      Results provided are:

      • Plot showing extent of ponding

      • Average duration of ponding

       

       

       

    •   Holding Capacity

    •   Chemical & Corrosion Resistance

      ACO Drain channel bodies are highly resistant to chemical attack and, with the appropriate grate, can be used in most environments where acids and dilute alkalis are encountered.

       

      Refer to chemical chart for resistance of Polyester polymer concrete. FlowDrain products use the same polyester resin - refer to Polyester details for chemical resistance.

       

      These recommendations are for guidance only. Customers are advised to test a coupon of polymer concrete to ensure suitability. Test coupons are available free of charge from ACO.

      Polymer concrete is not affected by road de-icing salts, and conforms to ASTM - B117 Salt Spray Test.

       

      Important considerations for chemical environments

      When reviewing potential applications of trench drains in chemical environments, the following issues should be considered;

       

      1. Type(s) & mixture of chemical(s).

      2. Concentration percentages.

      3. Contact time with trench system.

      4. Temperatures of chemicals flowing into the trench drain. (180 ° F - 82 ° C max).

      5. Flushing system employed to clear chemicals from the system.

      6. Cleaning agents should be checked for compatibility with trench materials.

      7. ACO coupons can be used for final determination of chemical resistance.

      8. Grate, locking mechanism, edge rail, outlet and trash bucket materials should be checked for chemical resistance.

      9. Check sealant for compatibility

       

      Download the Chemical Resistance Chart

       

       

    •   Materials

    •   Installation

  • Underground Storage

  •   Oil Water Separators

  •   Trench Drain Design Form

  •   Load Class Table