25 products found
Environmental Dynamics International (EDI) Products
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Wastewater Treatment Membranes
Diffusers may get more credit, but the gap that separates a successful plant from an ecological nightmare may be thinner than you think. Like shoes, there are no one-size-fits-all membranes. Membranes shape bubbles and protect diffusers amidst some of the harshest forms of wastewater humans have contrived. Well-made, reliable membranes reduce replacement times and ensure oxygen transfer meets expectations; and thanks to EDI engineering, you have the right membrane that will allow your plant to perform according to expectations, for as long as you expect.
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EDI - Ethylene Propylene Diene Monomer (EPDM) & Armor-Coated Membrane
Available for FlexAir Pro tube, disc, and panel diffusers, as well as FlexAir Basic disc diffusers. Temperature resistance up to 240 °F (115 °C). Chemical resistance for municipal and most industrial applications. Armor-Coated™ technology available for specialized applications. UV protection incorporated in the compound. Low dynamic wet pressure. Low oil construction for membrane stability. No inorganic fillers for maximum performance. High ...
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EDI - Silicone Membrane Material
Material Features: High temperature resistance up to 350 °F (177 °C). Excellent uniformity and distribution of released air bubbles. Formulated for application specific condition. Good chemical compatibility in most municipal and industrial application. Available for tube and disc diffusers. UV protection inherent in the compound. Low dynamic wet pressure (DWP). Note: Not recommended for some ON/OFF ...
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EDI - Model PU + HTPU - Standard and High-Temperature Polyurethane Membrane
Available for FlexAir Pro tube and panel diffusers. Maximum mechanical strength and properties—will withstand harsh wastewater environments. Smooth surface characteristics inhibit fouling and prevents build-up of bio-solids. Excellent durability and chemical resistance. UV protection to resist UV rays before start-up of the system. long-term stability in DWP. Tested with over 2 million on/off cycles. No extractable oil ...
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EDI Matrix - Model Plus - Water Filtration Disc Membrane
Material Features: Premium pure compounds for stability and long membrane life. Fully Armor-Coated impregnated top layer guaranteed to never wear off. Provides membrane protection for outside (water side), and slit perforations. Dual Layer, high temperature inside layer, with co-extruded Armor-Coated outer layer. Strongest panel PU membrane material. ARMOR-COATED MATRIX™ Reduces organic and inorganic ...
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Diffusers
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 (160 mm).
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EDI FlexAir - Model Pro - Fine Bubble Diffuser Systems
Fine Bubble diffuser systems disperse the diffused gas volume to transfer an equivalent amount of oxygen as a coarse bubble system. The diameter of gas bubble has a dramatic impact on surface area. Comparing 1 cubic foot of air used in fine, medium, and coarse bubble systems demonstrates why fine pore diffusers optimize the use of air and reduce energy consumption. This subsurface aeration ...
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EDI FlexAir - Model Pro T-Series - Tube Diffuser
62 mm and 91 mm diameter tube diffusers with standard length options from 250 mm to 1000 mm. Choice of PVC or CPVC material diffuser tubes available. Stainless Steel ¾” male pipe thread or plastic ¾” female pipe thread connections available. Premium quality membranes available in EPDM, PU, PTFE-infused ...
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EDI FlexAir - Model Pro Magnum - Fine Bubble Flexible Tube Membrane Diffuser
The EDI FlexAir Pro Magnum diffuser is a fine pore, flexible membrane diffuser that offers a superior design for optimal aeration capacity. It features a full circumferential perforated area and can be configured with standard or high-capacity perforations for increased aeration and mixing capacity and maximum SOTE. The diffuser is ideally suited for digesters and standard biological treatments that require efficient mixing and good oxygen transfer at ...
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EDI FlexAir - Model Pro ISM - Integral Saddle Mount Disc Diffuser
Material Features: Glass-fiber-reinforced polypropylene body for maximum chemical, temperature, and UV resistance. Premium quality membrane materials available: EPDM, silicone, PTFE Matrix, specialty polymers. High-capacity membrane option available for maximumairflow and low operating pressure, Triple-check valve design minimizes entry of liquid/solids into piping. Ideal for on / off applications. Integral Saddle Mount provides ease of installation and ...
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EDI FlexAir - Model Pro - Fine Bubble Threaded Disc Diffuser for Wastewater Treatment
9” (230 mm) & 12” (300 mm) diameter fine bubble disc diffusers. All diffusers with standard ¾” male pipe thread connection fitsany pipeorifice design. This provides full utilization over the entire operating range of the ...
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EDI FlexAir - Model Basic - Fine-Bubble Aeration Diffuser
FlexAir Basic conforms to the most common aeration specification with a quality, American-made (or UK-made) product. If your specification calls for a solvent-welded, disc diffuser-based system, you need to meet FlexAir Basic. Designed and built by EDI’s aeration engineers to meet the requirements of this common spec, FlexAir Basic is a high-quality product delivering high-efficiency ...
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EDI Fine Pore - Rigid Media Ceramic Diffuser
Glass-fiber-reinforced polypropylene diffuser body for maximum chemical, temperature, and UV resistance. Saddle mount diffuser provides ease of installation/ maintenance along with maximum ...
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Diffusers - CoarsAir - Coarse Bubble Diffuser System
Coarse bubble diffuser systems offer moderate oxygen transfer efficiency and low maintenance with aggressive mixing, providing circulation and turbulence that ensures the entire water column is mixed adequately and sludge accumulation is limited. They are a very robust solution, with no moving parts in the water and orifices that are less prone to clogging than other forms of aeration.
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EDI CoarsAir - Bubble Diffuser Systems
Coarse bubble diffuser systems offer moderate oxygen transfer efficiency and low maintenance with aggressive mixing, providing circulation and turbulence that ensures the entire water column is mixed adequately and sludge accumulation is limited. They are a very robust solution, with no moving parts in the water and orifices that are less prone to clogging than other forms of ...
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EDI CoarsAir HexAir - Single-Drop Coarse Bubble Diffuser System
Material Features: Clog resistant, large diameter diffuser elements with above water air distribution piping. 1” & 2” nominal pipe sizes available. Turbulent mixing with multiple shear planes and edge contours to fragment bubbles for maximum efficiency. High bubble shear for maximum mixing. Low maintenance. ABS—non-corrosive ...
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EDI CoarsAir - Model Max - PVC Coarse Bubble Diffuser System
Material Features: Simplex or duplex configuration. Designed for high airflow capacity. Available in 24-inch length (610 mm). Clog resistant self-purge design. Full 48-inch air release perimeter (1220 mm). Standard units in stock for immediate shipment. Standard open bottom with optional closed bottom units available. PVC or optional CPVC construction for maximum chemical and temperature resistance. Three-level air discharge for wide flow range ...
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EDI FlexCap - Coarse Bubble Diffuser
Material Features: Low capital and maintenance cost. Engineered air outlet orifices . Non-clog coarse bubble design. Durable ABS body, premium EPDM membrane. Preferred mounting on bottom of air piping. Units in stock for immediate shipment. Integral check valve to minimize entry of solids into piping. 3” (76 mm) diameter air distribution. 3/8” and 3/4” male threaded ...
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Configurations
EDI has engineered several effective configurations to fit the specific needs of our customers. Some examples of common configurations are detailed below.
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EDI - Fixed Grid 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 ...
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EDI ModuleAir - Retrievable Configurations System
Floating retrieval lines enable the self-contained assemblies to be craned out for inspection and maintenance. Dedicated supply lines and ballasts are built right into the assemblies, as is the pipe on which diffusers are directly ...
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StreamLine - Fine Bubble Diffuser System
StreamLine is EDI’s patented configuration with unmatched system simplicity. Resulting in up to 33% reduction in system installation time compared to competing panel systems. Plus, membrane replacement can be completed in the ...
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Aftermarket Parts
Whether you are shopping for a full system upgrade or a few membrane replacements, Aftermarket Parts is here to help get you back up and running quickly. You can even add on SiteWorks Installation & Maintenance services and entrust your job to our experienced crew to get the job done right.
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EDI FlexAir - Model Pro - Mini Panel Diffuser
MiniPanel Systems deliver lower total energy cost in most applications. They are heat resistant, have air flow ranges, use EDI membranes, are configurable with retrievable options. FlexAir Pro MiniPanel units can be mounted on any type of a pipe, plastic or metal. These choices of materials are an engineering benefit for use by the engineer or ...
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EDI FlexAir - Model Pro Magnum - Diffuser Membrane
Efficient geometry supports high-density installations of over 65% floor coverage. Non-buoyant design for reduced uplift and stress on mounting connection. Premium quality membranes available in EPDM, PTFE, Silicone, Polyurethane, and Matrix PLUS for reduced fouling and minimum maintenance. Non-metallic design available for highly corrosive applications. Backflow protection with triple check-valve. Ideal for intermittent ...
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EDI FlexAir - Model Pro - 12 Inch Disc Diffuser
Glass fiber-reinforced polypropylene construction for maximum chemical, temperature, and UV resistance Advanced technology premium-quality membrane materials available in EPDM and other special polymer blends Resistant to fouling and plugging for low maintenance High-capacity membrane option available for maximum airflow and low operating pressure Benefits: Economical capital cost and ease of installation Available in 9”, & 12" or 90mm & ...
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FlexAir - Model EDI - Disc Membrane
The FlexAir disc diffuser is a fine pore flexible membrane or ceramic media diffuser that provides operational flexibility with maximum oxygen transfer efficiency. For ease of installation and maintenance, EDI's disc diffusers offer two connection methods: threaded and integrated saddle mount. The threaded disc diffuser can be installed in any 3/4-inch fitting or pipe ...
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Other Products
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EDI - In-Situ Cleaning System (Liquid formic Acid)
Material Features: Maintain system efficiency and performance. In-situ process- no downtime. Economical hardware and cleaning using formic acid. Effective removal of CaCO, minor bio-solids and other organic inorganic deposits. Designed for use with ceramic or rubber membranes, and safe for use on stainless steel piping. Safe to hand and operate, liquid acid eliminated need for hazardous HCI gas. Portable liquid dosing cart assembly ...
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EDI - Dynamic Wet Pressure (DWP) Connection Panel
EDI DWP (Dynamic Wet Pressure). Connection monitoring system is provided to allow periodic confirmation of diffuser unit dynamic wet pressure (headloss through the diffuser ...
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EDI - Pipe Support
Material Features: High degree of mechanical integrity . Available in standard or metric pipe sizes up to 14” (356 mm). Adjustable C/L range +/-2” (50 mm) . Prevents axial rotation while pivoting at the base to allow for expansion and contraction. Available in 304 stainless steel or 316 stainless steel. Available with additional bracing for high energy or other special ...