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Sand Media Filtration

Product catalog summary

Introduction
Yardney has been a pioneer in sand media filtration since 1965, offering high-performance solutions for challenging dirty water conditions in irrigation. Their filters are manufactured in the USA to stringent standards, ensuring durability and long-term value.

Applications
The filters are designed to remove organic contaminants like algae and slime, as well as inorganic materials such as sand and grit. They protect drip and micro-irrigation systems from clogging, with fine filtration capabilities down to 200 mesh or 75 microns.

Advantages

ASME code shaped head construction for enhanced durability and safety.
Standard material thickness: Carbon steel (3/16") and Stainless steel (10 gauge).
Standard operating pressure of 80 psi, with high-pressure systems available.
Automatic or manual backwash initiation.
Easy-entry lid closure with weld tabs for operator safety.
UV stabilized polyester powder coat on carbon steel tanks for extended product life.
Removable stainless steel wedgewire underdrain for structural integrity and effective backwash.
Drain ports vary by tank size, facilitating access and efficient draining.

Features

High strength stainless steel wedgewire underdrain with collapse resistance over 600 psi.
Optional removable underdrain system for ease of media changes.
Patented cast-iron backwash valve with low pressure drop and field serviceability.
Inlet and two-stage deflector plate for uniform water distribution.

Tank Options
Yardney offers various models with different specifications, including carbon and stainless steel options, different drain port sizes, and optional cross flow underdrains. Each model is designed to meet specific filtration needs and pressure requirements.

Filtration and Backwash Process

Contaminated water enters through the inlet manifold, passing through a 3-way valve into the tank.
A two-stage deflector ensures uniform flow across the media bed, trapping particulates.
Backwash is initiated manually or automatically, reversing flow to lift the media bed and release trapped particulates.
Each vessel is backwashed individually while the system continues to process water.

Specifications
The document provides detailed specifications for various models, including flow ranges, filtration surface area, backwash flow rate, media requirements, and pressure ratings.

Contact Information
Yardney Water Management Systems, Inc. is located in Riverside, CA, with contact details provided for further inquiries.

Catalog excerpts

WATER FILTRATION SYSTEMS Sand Media Filtration For the Most Challenging Dirty Water Conditions in Irrigation

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IYardney Media Filters Time. Quality. Experience. Knowledge. Yardney pioneered the use of sand media filtration in 1965 and through advancing technology, continues to provide high performance and longterm value in the field. Yardney Sand Media filters are manufactured in the USA to the most exacting standards. Manway weld tabs are standard on all media tanks and screen filter housings. Applications ■ Removal of algae, slime or other organic contaminant as well as sand, rock, grit and other inorganic contaminants ■ Protects drip and microirrigation systems from plugging with fine filtration removal...

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Optional removable underdrain High strength stainless steel wedgewire underdrain has a collapse resistance in excess of 600 psi insuring structural integrity in the harshest conditions. Removable underdrain system feature saves both labor and time during media changes. Inlet and Outlet Endcap Couplings Our patented cast-iron backwash valve has the lowest pressure drop in the industry and is designed to be 100% field serviceable with basic hand tools. Valves feature noncorrosive stainless steel shafts, brass bushing, durable molded polyurethane seals, fusion epoxy lining, and a grease fitting...

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Side Manway Epoxy Composite Underdrain Drain Port SM100 ■ Available in 48" carbon steel ■ Epoxy composite underdrain ■ Top manway cover: 10" carbon steel ■ 11 x 14" elliptical side manway ■ 3M Scotchkote® 134 on interior surfaces of tank ■ Exterior UV stabilized powder coat on carbon steel tanks and all manway lids ■ Exterior UV stabilized powder coat on carbon steel tanks and all manway lids Ordering code part number breakdown:

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Side Manway Drain Port 3M Scotchkote 134 Side Manway Removable Underdrain ® Removable Underdrain Drain Port ID Coating 3M Scotchkote® 134 Removable Underdrain ■■ Threaded removable stainless steel wedgewire underdrain with Schedule 80 PVC hub ■■ One 6" drain port ■■ Threaded removable stainless steel wedgewire underdrain with Schedule 80 PVC hub ■■ Top manway cover: 10" carbon steel; 8" stainless steel ■■ 11 x 14" elliptical side manway ■■ Exterior UV stabilized powder coat on carbon steel tanks and all manway lids ■■ Optional cross flow underdrain ■■ Threaded removable stainless steel wedgewire...

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Operation Filtration Process ■ The contaminated water enters the system through the inlet manifold, transitioning to the Yardney 3-way valve and into the top inlet of each tank ■ The Yardney two-stage deflector creates a uniform distribution for laminar flow across the media bed while avoiding channeling of the media bed ■ Particulate is trapped and retained within the media bed resulting in clean process water flowing out through the stainless steel wedgewire underdrain, to the outlet of each filter tank and to the outlet manifold for end use Backwash Process ■ Backwash sequence is initiated...

Open the catalog to page 6