Water Mixing

PAX Water Mixer - An active, tank mixing system

  • PAX Water Mixer
  • Tank Mixing
  • PAX Water Mixer inside storage tank
  • Inside tank without mixing - full of ice
  • Inside tank with mixing - ice free

The PAX Water Mixer is an active, submersible mixing system for the cost-effective management of drinking water quality in storage tanks and reservoirs. The mixer installs easily without service disruptions or tank modifications and mixes on-demand (24/7/365) to create temperature stability, uniformly distribute disinfectants and improve water quality.

THE PAX WATER ADVANTAGE
Just as electronic technologies have improved with time, mixing technology has evolved from large, expensive systems into a small, efficient solution. Unlike passive systems, which only work during the fill cycle, and cumbersome draft tube mixers, which lack the power to thoroughly mix, the PAX Water Mixer provides the most powerful mix and significant operational advantages.

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Performance
Performance

The PAX Water Mixer provides unrivaled mixing performance and a more complete mix in all tank geometries and sizes. Using Computational Fluid Dynamics (CFD), we can ensure the performance of our mixer for any tank configuration.

 
Savings
Savings

As a more effective and economical alternative to deep cycling and flushing, our mixer helps utilities to save money on labor, energy and chemical costs. Additionally, it's easy to install and maintain, without service disruptions.

 
efficiency
Efficiency

PAX technology replicates nature’s most energy-efficient and effective path of mixing fluids – spiral geometry. With this natural design, the PAX Water Mixer can mix up to 10 million gallons with the same energy footprint as three 100 watt light bulbs.

 
Quality
Quality

The PAX Water Mixer empowers utilities to maintain consistently high water quality and public confidence. Mixing ensures uniform disinfectants and sustains residual levels longer so that consumers enjoy the best possible water quality.

 

PAX WATER MIXER APPLICATIONS -
70% of storage tanks suffer from poor mixing
As cool, dense water enters from the inlet pipe, it settles on the bottom of the tank while the warmer, more buoyant water already present in the tank rises to the top. This temperature difference means that very little natural mixing occurs – causing even the best water quality to deteriorate before reaching customers.

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Residual Loss
Residual Loss

Thermal stratification and high water age cause residual loss, bacterial growth and public health risks. Active mixing combats thermal stratification and makes optimal use of existing disinfectant residual. This reduces the need to dose the tank.

Testing
Disinfection Byproducts and Regulatory Compliance

The Stage 2 DBP rule is forcing utilities to achieve better disinfection while reducing DBPs. Mixing ensures that treated water entering the tank is uniformly distributed and residual loss is minimized so there is less bacteria growth and DBP formation.

Nitrification
Nitrification

In chloraminated systems, warm temperatures lead to disinfectant loss and ammonia buildup – creating nitrification. Active mixing keeps water temperatures consistent, inhibiting disinfectant loss and preventing nitrification episodes.

IceDamage
Ice Damage

Ice formation inside tanks can cause significant damage to tank coatings and internal hardware, even tank rupture. By keeping temperatures above freezing throughout the tank, active mixing eliminates ice formation and damage.


Utility Service and PAX Water Technologies Partnership
Utility Service has the exclusive rights to market PAX Mixer technologies in the United States. PAX Water is the industry leader in energy-efficient hydrodynamic design. Utility Service is the nation’s leading provider of tank asset management and water quality services. By working together, we are able to provide municipalities with well-designed, reliably-installed turn-key sustainable solutions for potable water distribution systems.
 



 

 

  • Brochure
  • Video
  • White Papers / Case Studies
  • Published Articles
  • Using Biomimicry in Tank Mixing
  • Specifications
Water Mixing Brochure

 

Water Mixing
Powerful mixing improves tank water quality, helps minimize water age, residual loss, disinfection byproducts, nitrification, and ice damage. Water mixers create a powerful vortex flow pattern inside water storage tanks to circulate the entire volume, top to bottom, and eliminate thermal stratification. Download Brochure
Water Mixing

 

Thermal Stratification In Water Storage Tanks Video

White Papers / Case Studies

Active Mixing in 5 MG Concrete Tank - Pinellas, FL


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Published Articles

Best Practices: Complying With the Stage 2D/DBP Rule
Fiske, Peter; Moore, Randy

OPFLOW ISSUE: September, 2012 -- Volume 38, Issue 9

Volume 38, Number 9
September, 2012

September, 2012 | Volume 38, Issue 9 | Pages 14-16

Best Practices Article
Impeller technology inspired by nature

Biomimicry is a rapidly growing discipline in which scientists and engineers adapt nature’s solutions to solve technical problems. The core of PAX Water’s mixing technology is the highly efficient and powerful Lily impeller – a biomimetic technology used to solve potable water challenges. Inventor Jay Harman developed the Lily impeller after studying fluid flow efficiencies in natural systems, such as air and ocean currents. He observed that nature never moves in a straight line, and instead tends to flow in a spiraling path he called nature’s Streamlining Principle.

By isolating this archetypal spiral geometry, the design of the Lily impeller appears organic in shape

The Lily takes advantage of nature’s flow pattern – known to be the least resistant and most effective method of mixing fluids – to significantly improve the performance and energy usage of water mixing technology.

 

Specifications
  • Power Supply Requirement: 120 VAC, GFCI-protected, 15 Amp circuit
  • Motor Type: 48 VDC, water-filled, water-lubricated, brushless motor
  • Nominal Power Draw: 280 W @ 1200 RPM
  • Mixer Assembly Weight: 62 lbs (28.2 kg)