Tank Mixing Eductors

• Computer optimized flow paths enable the Jacoby-Tarbox eductor TLA to maintain a high "pick-up ratio" (the ratio of fluid entrained to the motive fluid) while maximizing the hydraulic efficiency (the ratio of hydraulic power at the outlet of the TLA to the hydraulic power at the inlet) to generate an optimum flow field from the greatest flow amplification.
• No moving parts in the eductor, minimizing maintenance expenses.
• Optimum flow field enables more activity within the tank than competitive units without changing pumps.
• Compact design and ease of mounting keeps the TLA from interfering with other tank equipment.  
• "In-tank" mounting eliminates need for costly, complex mounting structures above tanks.   
• The TLA can be used in a wide variety of open vessels or closed tanks. 
• Eliminates stratification and promotes a homogenous tank with relation to pH, temperature, solids or gas dispersion, and distribution of chemicals.
• Produces a unique agitation not available with other types of mixers, as the TLA can generate a directed flow field within the fluid being mixed including viscous fluids, slurries, and suspensions.
• Easily mixes liquids of differing specific gravities and is excellent for scrubbing applications where a lower specific gravity fluid is driven into the higher one.
• Flow amplification due to high "pick-up ratio" and hydraulic efficiency permits the use of smaller pumps, which translates to reduced costs of mixing or agitation.
• Reduces investment cost because existing transfer pumps can be utilized for more than one purpose.

• Excellent Corrosion Resistance
• Excellent Abrasion Resistance
• 300° F Continuous Service
• Good Non-Stick Characteristics
• Excellent Dielectric Insulation
• Radiation Resistant

This coating is applied via electrostatic powder spray or fluidized powder bed. In addition to possessing the high chemical and temperature resistance which all fluoropolymers are noted for, Edathon's strengths, radiation resistance, wear resistance, and creep resistance are significantly greater than those of other fluoropolymers such as PTFE, FEP, or PFA. Details about our Edathon Coating

When turnover rates are used to calculate mixing it is important to consider the viscosity of the fluid and the amounts of solids present.  It also important to consider the size, weight and shape of the tanks which may limit the free flow of the mixing solids to maintain suspension.  The viscosity or odd flow field within the tank, and suspensions that separate easily may demand constant mixing. In most cases, the TLA will usually provide a homogenous mixture of the vessel in one to three turnovers.

When operated with pressure drops between 10 and 60 PSI, the TLA will entrain at least 4 times as much tank liquid as the motive liquid used. For pressure drops over 60 PSI, the amount of fluid entrained by the TLA remains almost constant. Up to 5 to 1 Entrainment.

To calculate the required turnover time for the tank with pressure drops between 10 and 60 PSI, divide the tank volume by the result of the number of eductors times the outlet flow (GPM).

To properly size a TLA eductor for mixing a tank, the effective length of the flow field must be determined. The amount of power put into the tank varies based on the mass flow rate of the motivating fluid in the eductor and the pressure of the fluid as it enters the system.

For vessels mixed at an angle, the distance the eductor is actually seeing must be calculated. For example, if the eductor is angled upward, the distance is the hypotenuse of the triangle made up of the length and the height of the tank.

Refer to the "Max Length" listed in the chart below for determining the normal effective plume length of the TLA eductor. At this length, the minimum velocity centerline within the flow field is normally one foot per second. Beyond this length, the lower velocities may have limited effect on the tank contents.

Standard materials TLA's are cast or fabricated in: bronze, 316 stainless and carbon steel. Cast units range from IPS 3/4 to 2. Larger sizes and other materials are fabricated. Consult the factory for details.

Standard body connection for 3/8 and 3/4 units is male NPT and for 1-1/2 through 3, female NPT. Over 4" is flanged. Optional connections include female/male NPT, butt weld, socket weld, VictualicTm, sil-braze, and flanged.

Standard Materials:

• Carbon Steel
• 316SS
• Bronze
• PVC
• PPL
• PVDF

Typical Arrangement of Eductors for Tank Agitation & Mixing