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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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Uniform distribution of air and water even in extra-long lengths. Type SL underdrain features a lower profile, making it ideal for shallow filters where greater filter media depth is desired. Leopold Type S technology underdrain is designed to provide uniform distribution of wash water and air to clean underrdain corner of the filter without media upset. More driving head results in longer filter runs.

The underdrain evacuates filtered water from the filter during the filter run and introduces water and air during backwashing and air scour. Click Here To Download: The underdrain is compatible with all standard flume ynderdrain air configurations.

Comments are moderated before being posted. The modular underdrain blocks are easy to handle and snap together for quick installation. Best uplift resistance – withstands uplift pressures up to 30 psi 2 bar.

New at WEFTEC: Xylem Launches Underdrain with 360-Degree Backwash Capability

Get General articles, news and videos right in your inbox! Precision-engineered 1 mm slots support media down to microns 1. Durable reinforced polymer maximizes strength against harsh elements while reducing overall weight for easier transport and installation.

Physically rigid design reduces flexing and withstands pressures up to 15 psi. Easy handling – snaps together for quick installation. Type S underdrain is ideal for designs requiring longer laterals.


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. This unferdrain media dead zones that can develop due to gaps in backwashing coverage. The polymer matrix is corrosion-free.

March 06, Towering Above the Competition. Reduces construction costs replacing up to 14 inches 36 cm of gravel media support allowing for the same media depth in less vertical space. The Type underdrain helps solve challenges in biologically active filtration systems, indirect and direct ynderdrain reuse applications, new drinking water applications addressing the U. Can be designed for center and front flumes.

Leopold Type XA Underdrain

The IMS Cap eliminates the need for gravel thereby allowing for deeper media depth. Both are constructed of high-density undeedrain HDPE construction for strength and corrosion resistance. Locate a distributor in your area. The bolt-down solution is engineered for reliability with nuderdrain uplift resistance of over 15 psi.

Request more detailed information or literature. September 13, Stellar Management. It includes an innovative degree backwash capability designed to boost efficiency by up to 20 percent. Superior air and water distribution for effective backwash, giving longer filter runs and lower operating costs.

Both feature a unique water recovery channel for superior air scouring and water backwash performance. At WEFTEC this year, Xylem highlighted its Leopold Unserdrain underdrain — a bolt-down underdrain system for greenfield projects and rehabilitation of water treatment filtration projects.

With lateral lengths over 40 feet, it is suited for long filter runs and retrofits of existing filters. EPA LT2 rules on contaminants of emerging concern, and the rehabilitation of existing media filters.


Filterworx Performance Filter

More driving head results in longer filter run times. Easy handling – snap together for underrain installation. Can be designed for wall-feed applications as well as center flume, front flume and Leopold Flat Bottom flume. Physically rigid design reduces flexing and withstands pressures up to 15 psi 1 bar. Newsletter Sign Up Join 16, of your colleagues who already get great content delivered right to their inbox.

Leopold — A Xylem Brand. Company Profile Email Us.

Leopold Universal Type S® Underdrain by Xylem

Self-cleaning technology removes sediment buildup in the underdrain over time. Handles for quick and easy installation, and snaps together for quick installation. Suitable for wastewater plants, biologically active filters and more. 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.

Click the button below to directly contact the supplier. Suitable for drinking water plants and desalination plants. Reduces construction costs reducing vertical footprint by inches cm by eliminating gravel support allowing for the same media depth in less vertical space. Superior air and water distribution for effective backwash giving longer filter runs and lower operating costs. The design includes slots and orifices around the entire underdrain to help clean the filter media from every angle during the backwash process.

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.