Atmospheric Air Ejectors
Atmospheric Air Ejectors are essentially Air Ejectors that operate on the basis of the jet Venturi principle and work in combination to liquid ring pumps. Atmospheric Air Ejectors are installed before the vacuum pump such that the ejector outlet is connected to pump inlet. During operation the pump creates vacuum at its inlet i.e at outlet of the atmospheric ejector. Due to the jet venturi principle Atmospheric air ejectors are able to create a pressure differential across its inlet and outlet openings. Thus if the ejector outlet is at vacuum it can create more deeper vacuum at its inlet. Atmospheric Air Ejectors utilize the energy in air from atmosphere to create this pressure differential.
Vacuum created by a Liquid ring pumps is limited by their sealing water temperatures. For liquid ring pumps operating with ambient water their vacuum is limited to 35 – 40 Torr i.e ~50 mbar. Hence Atmospheric Air ejectors when used in combination with the liquid ring vacuum pump is able to create more vacuum and extend the pump capacity. Atmospheric Air Ejectors can extend the vacuum upto 8 – 20 Torr i.e 10 – 26 mbar
As Atmospheric Air Ejectors use air from atmosphere / ambient for operation they do not need any additional input in terms of electricity and can be directly mounted on liquid ring vacuum pumps.
Typical Applications
- As a vacuum booster for a liquid ring vacuum pump
Features of Atmospheric Air Ejectors
- 4 Custom designed models – ensures perfect fit for your application.
- 4 Ability to retrofit onto an existing pump.
- 4 Ability to develop deep vacuum upto 8 Torr i.e 10 mbar
- 3 Available in multiple type of end connections – Flanged, Threaded
- 2 Available in multiple connection standards – ASME, DIN , JIS
- Available in a large variety of materials
| Metallic | Non Metallic |
|---|---|
| Carbon Steel | PP (Poly-propylene) |
| Stainless Steels SS 304 / SS 316 | PTFE (Poly-tetra-fluoro-ethylene) |
| Duplex & Super Duplex Stainless Steel | |
| Exotic metals (Hastelloy, Inconel, Titanium) |
Benefits of Atmospheric Air Ejectors
- 1 Use Atmospheric Air as energy input / fuel – hence no additional infrastructure needed for operation.
- 2 Static Device without any moving parts – ensure long reliability and maintenance free operation.
- 3 Tolerate entry of liquids & solids particles into the ejector – avoids abrupt breakdowns.
- 4 Non sparking operation – can be safely used in hazardous & flammable areas
- 5 Manufactured in multiple materials – allows using the most cost-effective & chemically compliant materials for the application.
