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Operating Principle

System Options

Technical Data

Standards, Tests and Approvals

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A New Generation of Filtration Systems and Process Water Recovery Technology.

Centrifugal Separator

Centrifugal Separator Install



For High-rise buildings

For Cooling Towers

WHR in Cooling Towers

For Water Bottling Industry

Water Bottling

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A New Generation of Filtration Systems Offering Greater Savings and Efficiencies (Conserves up to 90% of Processed Water)

The AENVIRO Centrifugal Separator and system manufactured by AENVIRO for Fuidyne Int'l Corp. is a new-generation precisely engineered filter system for
high rise buildings. The Separator itself has no motorized parts, uses no chemicals or filter media, requires minimal scheduled maintenance (occasional
purging), and does not require backwashing. This Separator can be supplied as a complete system with suction strainer (as required), pump, solids purging system and/or filter bag housing, and NEMA rated control panel - or as a stand-alone unit for retrofit to other inefficient systems. The filtration system is designed to remove solids with a specific gravity range higher than 1.5, solids spherical
size - greater than 25 microns (25 micrometers) and solids concentration from 2% by weight. The AENVIRO "Velocentrifugation Process" of solids/liquids separation maximizes the use of fluid velocity through modified G-forces while minimizing the need for energy in reclaiming cleaner water. Fabricated
using all welded carbon and/or stainless steel construction and is a centrifugal vortex- style with tangential inlet capable of passing a solid with aspherical size equal to 25% of the connection pipe size without obstructing the path of the separation. The AENVIRO Separator is supplied pre-finished in a powder coated blue/green color.

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  1. Fluid and solids contaminants enter tangentially
    through a cupped-type accelerator inlet exhibiting
    higher g-forces to the fluid and contaminants. A helical anti-collision plate is positioned in front of the inlet to prevent rotating fluid to hit the incoming fluid, thus preventing fluid hammering and vibration. Diffuser plates are also positioned to break clustered solids in the entering fluid. Guide skirt at the bottom of the discharge pipe, prevents solids from returning.
  2. The downward spiral motion causes high centrifugal forces to pull solid particles heavier than water out towards walls which then move down towards a
    collection chamber at the bottom of the separator.
  3. A set of circular vanes are positioned clockwise to ease the settling of the contaminants and preventing them from returning to the stream.
  4. Gravity pulls solids down into Separator collection chamber that holds a minimum of 4% solids by weight.
  5. The clean water or process fluid then rises up via a central vortex and top spin plate and through the system once again. The vacuum formed on top of the 'mushroom' spin plate is sufficient to accommodate another type of ozone treatment system that could be mixed in the returning cleaner vortex.

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Centrifugal Separator Components

Centrifugal Separator Notes:

  1. Separator vessel can be installed in vertical or inclined position.
  2. Separator can remove particulate surpassing the industry standards of 45 Microns.
  3. Available in flow rates up 30,000 GPM (2280 l/s).

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Solids Purging Options:

APU-Auto Purge Unit:

Provides intermittent release of water or other liquid and contaminants to drain.

APU Auto Purge Unit


MPS-Manual Purge System:

Requires availability of staff to remove purgings.

MPS Manual Purge System


CRRS -Closed Recovery and Recirculation System:

Filtered water returns to system and collected contaminants are removed periodicallyvia a filter bag housing and an alarm set to signal if higher differential pressure across system is occurring.

CRRS - Closed Recovery and Recirculation System


Filtration Option:

Side stream filtration does the job of full stream filtration via multiple passes and is recommended for new filtration installations since side stream uses much less energy and is less costly in terms of capital investment. At the same time Fluidyine Int'l Corp. products/systems are equally adaptable to full stream systems in existing installations.

Side Stream Filtration Picture

Full Stream Filtration Picture

Sump or Basin Sweeper System Option

Using PVC and/or steel piping manifolds with molded thermoplastic or cast steel venturi-type eductors, the kinetic energy of liquid flow is utilized in agitating the solid contaminants towards the filtration system. Formation of hard scale and
settling of other solid contaminants are prevented, thereby improving cooling tower performance, minimizing downtime and maintenance while creating an improved healthy environment in areas surrounding the water cooling system.

Sweeper System Option Picture

Eductor Type Graph
Click graph to enlarge on another page.

Eductor Picture

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Flow Vs. Differential Pressure

For optimum Separator efficiency, select model from 2.5 to 8 psid (17 to 55 kPa) differential pressure range as follows

Pressure Loss Requirements Separation Efficiency
  1. Select flow rate required within 2.5 to 8 psi (17 to 55 kPa).
  1. Select flow rate required within 2.5 to 8 psid (17 to 55 kPa).
  1. Select Separator size line at top of chart, e.g. ACS3, etc.
  1. Select Separator size line at top of chart e.g. HCS3, etc.
  1. Select corresponding Pressure Loss at left, e.g. 8 psi (55 kPa).
  1. Refer to "Separation Efficiency, %" chart at right and select corresponding
    Solids Specific Gravity.

Separator System Selection Chart
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Separator Models and Vessel Sizes:

Separator Models and Vessel Sizes
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The Fluidyne AENVIRO Centrifugal Separator System meets or exceeds the following:

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Separates solids from liquids in high rise commercial, institutional and multi-residential buildings.

Applications Includes:


Centrifugal Separator System

Cheasapeake Energy Installation



Click image to enlarge picture on another page.


Heat Exchanger Application
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Relavitely short pay back; upgrading to Fluidyne technology can deliver energy, maintenance, and down- time savings, and improved health.

LEED investment; aids in identifying green performance targets including AIR, ENERGY, WATER (LEED points).Recycling and re-use lends itself to sustainable building.

Conserves up to 90% water based on annual use; high cleaning efficiency eliminates contamination up to 98% of solids with specific gravity of 1.5% down to 45 microns. Minimize/prevents growth of bacteria.

Reduced power requirement; lower differentia power reduces energy requirements and increases heat transfer efficiency.

Substantially reduced environmental impact; virtually eliminates pollution resulting from chemical into air via discharge, slips, spray and drift. No solids or chemicals can enter into sewer system. Note: APU Auto Purge Unit requires solids disposal receptacle.

Protects equipment from early deterioration and foul- ing problems by separating solids e.g. sand, scale, rust, biofilm, grease, and floating orgaincs from supply water or other liquids. Keeps cooling tower basins clean with the use of sweeper system. Extends lifespan.

Optimum sound and vibration control; smooth filtration flow eliminates aggravating structure-borne noise, and pipe hammering.

Largest solids collection chamber available on market; also ensures smooth evacuation of solids.

Prevents reversal of solids; top spin plates, multiple spin arrestors and contoured solids settling vanes prevent contaminants from moving back to separator.

Minimal scheduled maintenance required; separator contains no moving parts to wear out or replace and does not require chemicals and other consumables. Only occasional removal of solids (system purge) is required via an annunciator feature mounted on the filter bag housing on CRRS models.

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Supply and installation is by Fluidyne Int'l Corp. Essentially the AENVIRO Separator System is installed in any section of pipe near the equipment to be serviced as recommended by Fluidyne International Corp.

Pipe Connection Options

Separator models are available with a choice of inlet and outlet piping configurations to suit project requirements. Low profile models (LPF) are also available to suit low headroom conditions. See Fluidyne technical manual.


A Fluidyne representative will supply technical assistance, application schematics, system selection, 3-Part specifications, and budget pricing.


5 years against faulty materials or workmanship for AENVIRO Separator System. One year for the ancilliary equipment.


Minimal scheduled maintenance required.
Periodic check-up of the programming sequence.

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