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Unifilt Corporation products
Filter Materials and Systems
Unifilt Anthrafilt - Anthracite Filter Coal
Composed of specially selected and graded hard, durable anthracite coal particles. The anthracite shall have an average specific gravity of 1.60 (or more), with hardness (MOH Scale) of 3.00 or more, and shall be essentially free of iron, sulfide, clay, shale, extraneous dirt, and excessive dust, and shall be in strict accordance with AWWA B100-09. Carbon Content shall be a minimum of 80% on a dry-weight basis. Ash Content shall be a maximum of 15%. Volatile Matter shall be 7% maximum on dry-weight basis. There shall be not more than 3% float when placed in a fluid of specific gravity of 1.45, and not more than 3% sink when placed in a fluid of specific gravity of 1.95, when tested in accordance with ASTM D4371-84, Methods for Determining the Washability Characteristics of Coal. The filter anthracite shall be processed with wet washing, screening and biological neutralization. The durability or friability shall be less than 3%.
Unifilt - Filter Sand, Torpedo Sand or Coarse Sand
Composed of hard, durable clean siliceous particles free of all mica with an average specific gravity of 2.60 (or more) and shall be in strict accordance with AWWA B100-09 standards. The acid solubility shall be less than 5%. The loss of ignition less than 4%.
Unifilt - Purple-Black Filter Medium Process System
A purple-black filter medium processed from glauconitic greensand and is used for removing soluble iron, manganese and hydrogen sulfide from well water supplies. The effective size is 0.30 - 0.35 mm with a uniformity coefficient of less than 1.60. The specific gravity will be approximately 2.4.
Unifilt - Support Gravel/Filter Gravel
Consist of clean, hard, durable rounded particles of high quality, which shall exceed AWWA B100-09, 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.
Air Scour Modular Units
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 support the cost of maintaining older, outdated equipment..Air Scour units simply drop down from the top and are fully supported from above.
Uni-Liners and Wheeler Balls
Uni-Liners - Wheeler Balls
Concrete in poor condition? Need repairs? Uni-Liner is the ONLY liner system that can be mechanically attached to the porcelain thimble. Injection-molded, virgin, HDPE construction delivers long-lasting performance, strength and increased durability. Eliminates construction adhesives. No more lengthy cure times or  unhealthy fumes, No more seal uncertainty. Adds smooth hopper linings to monolithic wheeler bottoms.
