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Leopold has long been a worldwide leader in the water and wastewater treatment industry supplying both filtration and clarification systems. Leopold History. • In the filtration business since • Pioneer of the Dual/ Parallel Lateral Underdrain. • Benefits from own product development center/ R&D. Leopold Underdrain vs. Nozzle Floor. Page 2. Leopold Underdrain vs. Nozzle Underdrain. Dual Parallel Lateral Filter Underdrains. Nozzle Floor.

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Reduces construction costs reducing vertical footprint by inches cm by eliminating underfrain support allowing for the same media depth in less vertical space. Leopold — A Xylem Brand.

Leopold® Type XA™ Underdrain

With lateral lengths over 40 feet, it is suited for long filter runs and retrofits of existing filters. Both feature a unique water recovery channel for superior air scouring and water backwash performance.

The polymer matrix is corrosion-free. Company Profile Email Us.

EPA4 – Apparatus and method for securing underdrain filter block – Google Patents

The design includes slots and orifices around the entire underdrain to help clean the filter media from every angle during the backwash process. Physically rigid design reduces flexing and withstands pressures up to 15 psi 1 bar.

Leopold Underdrains Thanks to Xylem. Handles for quick and easy installation, and snaps together for quick installation. By washing percent of the media between laterals, the underdrain increases filter run times, reduces backwash water consumption and extends media filter life, leading to lower operating costs and energy savings.


More driving head results in longer filter run times. Suitable for drinking water plants and desalination plants. Get General articles, news and videos right in your inbox! Both feature the dual parallel lateral design pioneered by Leopold, ensuring uniform distribution of water and air at each dispersion orifice opening even in extra long lengths.

The bolt-down solution is engineered for reliability with an uplift resistance of over 15 psi. Provides even backwash distribution to deep clean filter media. Leopold Type S technology underdrain is designed to provide uniform distribution of wash water and air to clean every corner of the filter without media upset. Locate a distributor in your area.

Type SL underdrain features a lower profile, making it ideal for shallow filters where greater filter media depth is desired. Both are constructed of high-density polyethylene ,eopold construction for strength and corrosion resistance. Easy handling – snaps together for quick installation.

Superior air and water distribution for effective backwash, giving longer filter runs and lower unferdrain costs. The Type underdrain helps solve challenges in biologically active filtration systems, indirect and direct potable reuse applications, new drinking water applications addressing the U.

Newsletter Sign Up Join 16, of your colleagues who already get great content delivered right to their inbox. Superior air and water distribution for effective backwash giving longer filter runs and lower operating costs.


New at WEFTEC: Xylem Launches Underdrain… | Treatment Plant Operator

This eliminates media dead zones that can develop due to gaps in backwashing coverage. Can be designed for center and front flumes. It includes an innovative degree backwash capability designed to boost efficiency by up to 20 percent. Request more detailed information or literature. Comments are moderated undeedrain being posted.

The modular underdrain blocks are easy to handle and lepoold together for quick installation. Best uplift resistance – withstands uplift pressures up to 30 psi 2 bar.

The underdrain is compatible with all standard flume and air configurations. Uniform distribution of air and water even in extra-long lengths. Click Here To Download: Comments on this site are submitted by users and are not endorsed by nor do they reflect the views or opinions of COLE Publishing, Inc. Precision-engineered 1 mm slots support media down to microns 1. Physically rigid design reduces flexing and withstands pressures up to 15 psi.

September 13, Stellar Management. Air stability is improved with all orifices underdran uniform and continuous airflow.