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EDI - Fixed Grid Wastewater Aeration Configurations System
EDI fixed grid configurations are floor-mounted and ideal for concrete basins and steel tanks. Because they don’t move, they can support the highest-density applications in both municipal and industrial systems.
Trust your surgeries to surgeons… and your fixed grid configuration to EDI’s specialized engineers who can tailor it to your specific application.
When you know the right answer, you don’t need multiple choice. That’s the philosophy behind EDI Aeration fixed grid configurations: engineer the best answer once, make it easy to implement, and count on your aeration for life™.
EDI Fixed Grid Piping Systems are ideal for conventional tank applications where access to the reactor for installation and system maintenance is available. The system is engineered for maximum long-term economic value and reliability, is based on design methodologies and system components specifically developed to meet customers’ needs, and is customized for each application.
The airflow requirement for each pipe section is evaluated and the appropriate pipe size is selected for low head loss. This helps ensure uniform air release between diffusers and a low system operating pressure. There is no size limit on drop and header sections. Distribution laterals for the DISC System option are commonly 3 inches (90 mm) and 4 inches (110 mm), though other sizes are available. Distribution laterals for the TUBE System option are available from 3 inches (90 mm) to 8 inches (>200 mm).
Available with FlexAir® Pro Disc, Tube, Panel, and Streamline™ diffusers, as well as FlexAir® Basic 9″ solvent-welded disc diffusers.
Fixed grid FlexAir® Pro tube system- Factory manufactured components with fixed mechanical connections for ease of installation
- No size constraint on drops and headers, 3”– 8” and 90mm –160mm for distribution laterals
- Uses no-slip joints that are subject to wear and replacement, increasing service life
- Permanently anchored to reactor ?oor; stainless steel supports standard
- Stainless steel drop pipe and rigid PVC header and lateral standard; alternate materials (ABS, CPVC, and Stainless Steel) and wall thicknesses available for heat, chemical resistance, or when maximum durability is desired
- Fits 4”, 6”, 8”, 110 mm and 160 mm air piping—plastic or stainless steel
- PVC construction for maximum chemical & UV resistance, and optional CPVC for maximum temperature resistance
- NanoPore™ and MicroPore™ perforation options available to match oxygen transfer, airflow and operating pressure requirements
- Simplex (single-arm) and Duplex (two-arm) configurations possible
- Horizontal projected diffuser area for maximum OTE performance. System geometry supports high-density installations of over 65% (up to 80%) floor coverage
- Non-buoyant & cantilever design for reduced stress on mounting connections and for water cooling
- Factory manufactured components with ?anged mechanical connections for ease of installation
- No size constraint on drops and headers, nominal 3” (90 mm) and 4” (110 mm) for distribution laterals
- Accommodates variable water level applications
- Fixed pipe joints for increased service life and simple maintenance
- Stainless steel supports standard for header sections, and glass-filled polypropylene
- SuperStrut™ supports standard for distribution laterals
- Compatible with all pipe materials and wall thicknesses for heat resistance, chemical resistance, or when maximum durability is desired
- DI’s aeration engineers optimize designs for max long-term value and reliability
- Offers full range of membranes, diffusers, and materials for drop pipes, headers and laterals.
- SuperStrut™ (EDI exclusive plastic pipe-support) adjusts quickly, replacing time-consuming (and often unsafe) metal wiggle-wire install used by rest of the industry.
- No-slip joints are used to minimize wear and need for frequent replacement
Fixed Grid configurations are compatible with:
- All EDI membranes
- FlexAir® Pro fine-bubble disc, tube, panel or Streamline™ diffusers
- FlexAir® Basic fine-bubble 9-inch solvent-welded disc diffusers
- CoarsAir™ coarse-bubble diffusers
… And are useful for