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 needs. Below is a brief description of typical filter nozzle underdrain types used for water/wastewater treatment:
False Plate Underdrain: This simplest type of nozzle underdrain design typically used in pressure vessels. The nozzles are fixed onto a false plate inside the vessel using various methods depending on the design requirements and limitations.
Header Lateral Underdrain: This prevalent underdrain type, used primarily in pressure vessels, has a common header pipe going down the middle of the filter with a series of lateral pipes extending from the header. Our large selection of nozzle designs enable mounting of nozzles on laterals using pipe saddles for open laterals or a combination of pipe saddles and concrete sleeves for embedded designs.
Monolithic Filter Underdrain: Our Centurion™ monolithic underdrain system is typically used in municipal gravity filters for potable, wastewater, and pretreatment systems. Based on the size and design specifications, we will design and provide all the nozzle sets, formwork, and other components required to construct the monolithic underdrain onsite. Once installed, the filter has a completely sealed concrete false floor that is designed to last decades. The nozzles installed are specifically designed for the installation to ensure optimal filter performance.
Tank Internals: We also offer a full line of hub & lateral designs, tank heads, distributors, and drains that can be used for both collection and distribution systems in smaller commercial-sized applications, such as swimming pool filters and water softeners.