Eductor Body - The Suction and Motive Connections
Manufactured to specified finish and concentricity, assuring performance vastly superior to that of competitive units.
Eductors operate on the basic principles of flow dynamics. This involves taking a high pressure motive stream and accelerating it through a tapered nozzle to increase the velocity of the fluid. Gas Motives are compressible fluids and are put through a converging-diverging nozzle. The gas can exceed the speed of sound. This fluid is then carried on through a secondary chamber where the friction between the molecules of it and a secondary gas (generally referred to as the suction fluid) causes this secondary gas to be pumped. These fluids are intimately mixed together and discharged from the eductor.
- All models are Full ANSI Rated.
- ISO9001 Manufacturer.
- Wrench flats at pipe connections prevent damage to unit on installation and removal.
- Ultra-smooth machining of nozzle finish.
- Vacuum-tight and leak-free 0-ring seal.
- Machining of mixing tube to specified finish.
- Wide variety of connections.
- Entire unit meets ASME/ANSI B16.5
There are three connections common to all venturi eductors.
- Motive Connection
- Suction Connection
- Discharge Connection
- Performance Table
|Description||Model SL||Model ML||Model HL||Model SG||Model HG|
|Motive Pressure (PSIG)||15-250||15-250||15-250||30-150||20-150|
|Pressure Recovery %||10-15||30-35||40-50||15-20||30-35|
|Maximum Suction Lift||-27ft.||-27ft.||-27ft.||-20ft.||-20ft.|
|Minimum Required NPSH||3ft.||3ft.||3ft.||13ft.||13ft.|
More Productive Than Electric Pumps- With Lower Initial & Upkeep Costs
JRG/JT Eductors offer many advantages over electric pumps. They feature design simplicity, without rapidly rotating parts that are subject to leakage, wear and breakage. Eductors are generally small in relation to the work they do, and they are low in cost. They are easy to install and require few adjustments. They are easy to inspect and clean, and never require lubrication. In addition, they are ideally suited for use in hazardous locations, without the need for explosion proofing as may be required with electrical equipment.
Advanced Design... Full ANSI Ratings
JRG/JT Eductors feature an advanced design to assure flows better than those of other eductors. Unlike typical cast units, which meet only a nominal pressure rating, JRG/JT Eductors meet rigorous ANSI specifications.
All of our eductors have a smooth specified finish for critical flow paths. In comparison, sections of the flow paths in competitive cast units may be left rough to keep production costs down. Also, the mixing tube section of JRG/JT Eductors has been designed to withstand the stress to which it will be subjected. This is the point at which many other makes are weak and subject to breakage during installation. All units have wrench flats to prevent damage during installation.
Providing a smooth flow path is critical to optimum eductor performance. As a result of this feature, the motive fluid achieves more velocity through the eductor body, and this means more energy is used for pick-up of the suction fluid. Also, better flow paths in the diverging section of the eductor allow it to achieve better discharge pressures.