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Underdrains equipment for Water and Wastewater

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    WesTech MULTIBLOCK® - Filter Underdrains

    Versatile MULTIBLOCK® Filter Underdrain. MULTIBLOCK Underdrains provide a high quality, low cost, engineered product that is economical and versatile. MULTIBLOCK Underdrains can be fitted with the unique LaserShield media retaining system that eliminates the need for support gravel. Combined air and water backwash is possible using this system.

    By WesTech Engineering, Inc. based in Salt Lake City, UTAH (USA). from Filter Underdrains Product line

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    WesTech MULTICRETE™ - Model II - Filter Underdrain

    Accessible MULTICRETE™ II Filter Underdrain. MULTICRETE II Underdrains provide a high quality, low cost, engineered product that is economical and versatile. MULTICRETE II Underdrains provide a low headloss underdrain with plenum access. MULTIWASH® backwash is possible using this system.

    By WesTech Engineering, Inc. based in Salt Lake City, UTAH (USA). from Filter Underdrain Product line

  • Ovivo Enviroquip - Folded Plate Filter Underdrains

    The Enviroquip folded plate filter underdrain is synonymous with proven performance in gravity filtration. A low profile and media retaining design allows for deeper media stacks than what is available with other underdrains. Our 0.25mm openings place filter media directly on the underdrains and air laterals. The uniform introduction of air and ...

    By Ovivo (Formerly Eimco Water Technologies) based in Salt Lake City, UTAH (USA). from Folded Plate Filter Underdrains Product line

  • Trilateral - Model SST - Stainless Steel Underdrain

    Stainless steel underdrains are a popular solution because they are widely adaptable – but they are not all created equal.  While similar on the outside, what truly matters is the engineering inside. When water flows through, the internal structure must efficiently balance air and water, regardless of changing flow rates or seasonal ...

    By Roberts Filter Group based in Media, PENNSYLVANIA (USA). from Stainless Steel Underdrain Product line

  • Johnson Screens - Triton Underdrain System

    Johnson Screens Triton Underdrain M Systems exceptional performance as a filter underdrain comes from Johnson Screens Vee-Wire® technology. This construction creates a low profile underdrain with direct media retention while maintaining a high open area with non-plugging characteristics. Available in stainless steel and PVC, Triton ...

    By Aqseptence Group GmbH based in Aarbergen, GERMANY. from Triton Underdrain System Product line

  • Tetra Block Underdrains for Drinking Water Applications

    Tetra™ U Block is a high-density, lightweight polyethylene block for water filtration. Hailed by contractors for its easy installation, Tetra™ U Block is easily retrofitted into existing filters. Specify this popular corrosion-free block underdrain for years of dependable service. When a lower profile block is called for, consider the Tetra™ LP ...

  • Underdrains

    More economical, better performing, longer lasting, less maintenance. Delta Screens underdrains are a great solution for direct media retention in sand, dual- and mixed-media applications. Our underdrains combine effective flow collection and exceptional backwash distribution into a single unit. This combination maximizes strength and improves ...

    By Delta Screens based in Houston, TEXAS (USA). from Underdrains Product line

  • Filter Underdrain Systems

    Orthos Liquid Systems, Inc., offers a full range of filter nozzles, strainers, and accessories that can accommodate any filter nozzle underdrain design. With multiple design options such as material, mounting style, flow rate capacity, and tailpipes for air scour, we are sure that Orthos Liquid Systems has a filter nozzle that will meet your ...

    By ORTHOS Liquid Systems, Inc. based in Bluffton, SOUTH CAROLINA (USA).

  • Wheeler Bottoms Underdrains

    The Roberts PWI rehabilitation system for Precast and Monolithic Wheeler Bottom Underdrains quickly convert existing Wheeler Bottoms from a conventional system into a gravel-less underdrain. This rehabilitation system utilizes a porous plate insert assembly anchored in each hopper by a stainless steel toggle bolt. The toggle bolt passes through ...

    By Roberts Filter Group based in Media, PENNSYLVANIA (USA). from Wheeler Bottoms Underdrains Product line

  • Infinity - Filter Underdrain

    Underdrains are a critical part of water filtration, yet many are made in a one-size-fits-all approach using pieced-together connections attached with fasteners. This can create a number of unforeseen equipment breakdowns, corrosion points or gaps that are proven to fail over time. This flawed method often leads to difficult installations, wasted ...

    By Roberts Filter Group based in Media, PENNSYLVANIA (USA). from Filter Underdrain Product line

  • Soleno - Model Type 2 - Perforated and Filtered Drain

    Intended for installation in sandy or silty soil when filtered with TXC-10.

    By Soleno inc. based in St-Jean-sur-Richelieu, QUEBEC (CANADA). from Perforated and Filtered Drain Product line

  • Trilateral - Underdrain System

    The Trilateral Underdrain system is a traditional HDPE combination air/water underdrain utilizing passive air-scour to improve the efficiency of conventional filter backwash cycles. It is designed to provide efficient distribution of air and water for concurrent air/water backwashes as well as separate air and water backwash sequences.

    By Roberts Filter Group based in Media, PENNSYLVANIA (USA). from Underdrain System Product line

  • MuriPipe - Underdrained Swale Systems

    Underdrained swale systems are used for the treatment of contaminated stormwater and the downstream infiltration into the soil. Dirt particles and dissolved pollutants are absorbed and detained by the soil layer.

    By FRÄNKISCHE Rohrwerke Gebr. Kirchner GmbH & Co. KG based in Königsberg, GERMANY. from Underdrained Swale Systems Product line

  • Monoflor HD Underdrain

    Infilco Degremont's Monoflor HD® Underdrain is a monolithic, poured-in-place concrete underdrain system. It is constructed using one-piece molded forms of high-impact polystyrene. An air scour provides cleaning efficiency and reduced water consumption.

    By Degremont Technologies - a subsidiary of Suez Environnement based in Dübendorf, SWITZERLAND. from Monoflor HD Underdrain Product line

  • Unifilt - Air Scour Modular Units

    Proprietary, laser-cut microslits resist clogging to help.reduce the types of maintenance and system failures.commonly associated with mesh screens.No filter media removal or underdrain replacement.Lightweight modular units are constructed of 304 stainless steel for maximum durability.A cost-effective retrofit option for.facilities struggling to ...

    By Unifilt Corporation based in Wilkes-Barre,, PENNSYLVANIA (USA). from Air Scour Modular Units Product line

  • Phoenix - Panel System

    The AWI Phoenix Panel System was developed to economically upgrade existing underdrain systems and provides two main functions:Eliminates the need for base gravel layers. Improves distribution of backwash flows.

    By AWI based in Calgary, ALBERTA (CANADA). from Panel System Product line

  • Clay Tile Underdrain System

    With millions of square feet installed around the world in both potable and tertiary filters, Clay Tile Underdrains are one of the most popular systems in history. Roberts has offered the Clay Tile Underdrain system for several decades and still maintains our manufacturing capabilities for new, expansion and rehabilitation projects. The Clay Tile ...

    By Roberts Filter Group based in Media, PENNSYLVANIA (USA). from Clay Tile Underdrain System Product line

  • Unifilt - Support Gravel/Filter Gravel

    Support Gravel/Filter Gravel shall consist of clean, hard, durable rounded particles of high quality, which shall exceed AWWA B100-01, and be consistent with the recommendations of the underdrain manufacturer. The average specific gravity shall not be less than 2.5 for Silica Gravel. The acid solubility shall be as specified in B100-01

    By Unifilt Corporation based in Wilkes-Barre,, PENNSYLVANIA (USA). from Support Gravel/Filter Gravel Product line

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