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Difference between revisions of "Side Entry Mixers"
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This | [[File:Side Entry mixer.jpg|thumb|200px|right|Side Entry mixer]] | ||
'''Side Entry mixer''' is the most efficient converter of energy into fluid motion. Unlike jet mixer systems, they do not suffer significant energy losses at the pump, in the pipework, in the bends, or most significantly, at the jet nozzles. Also, capital costs are lower and access to intank components is not restricted, while the problem of frequent, urgent maintenance on tanks that must be emptied and cleaned, is eliminated. Side Entry mixers are also more efficient than top entry mixers, and are significantly less expensive for larger diameter tanks. Side Entry mixers are ideal for use on tanks with floating roofs where practical considerations preclude the use of top entry mixers. | |||
A properly selected side entry mixer, complete with a reliable shut off device and high efficiency impeller out performs all other mixing devices. | |||
==Standard Features== | |||
===Advanced Impeller Design=== | |||
*High Pumping | |||
*Minimum Power Draw | |||
*Solid Reliability | |||
*High Thrust | |||
*No Cavitation | |||
===Gear Driven Mixer=== | |||
The bearings of the gear driven units are all open caged type including the input pinion gear support bearings. All these bearings are splash oil mist lubricated via lubrication channels in the gearcase. | |||
===Belt Driven Mixer=== | |||
The bearings of the belt driven units are all prepacked with grease and "sealed for life" i.e. do not require regreasing. Note: All information given in fig.2 on bearing life is based on the fact that 90% of a large group of identical bearings can be expected to attain or exceed the life stated. This is called the basic rating life and conforms with both ANSI and ISO standards. The majority of bearings attain a much longer life than this; the median life is approximately five times the calculated basic rating life. | |||
===Shaft=== | |||
The shaft has been designed to minimize misalignment, deflection and vibration which all affect the mechanical seal and bearing life. It is a one-piece component with no intermediate couplings and is ground between centers at the bearing and seal areas. | |||
==Advantages== | |||
Side-entering mixers work efficiently where a tank is too large for convenient installation of a top-entering mixer, or where headroom is severely limited. Side Entry mixers are less expensive than top entry mixers in large tank installations because the long shafts required by extremely tall tanks are eliminated. | |||
In the case of very large tanks, several smaller side entry mixers may be more efficient and economical than a single, larger unit. | |||