Sampling Ejector | Sample Extraction Ejector
Sampling Ejector or Sample Extraction Ejectors are simple devices that operate on the basis of the jet Venturi principle.
Typically Sampling Ejector or Sample Extraction Ejectors have 3 connections
- 1. Compressed Air/Nitrogen Inlet
- 2. Suction
- 3. Outlet
During operation Sampling Ejector or Sample Extraction ejectors are able to create vacuum at its suction and outlet openings. Sampling Ejector or Sample Extraction Ejectors utilize the energy in compressed air or compressed Nitrogen to create this Vaccum.
The vacuum generated at its suction allows the Sampling Ejector or Sample Extraction ejector to suck the gas that is to be sampled. The sucked gas is then passed through the Analyzer to analyse the sample.
The vacuum generated at its suction also allows the Sampling Ejector or Sample Extraction ejector to lift liquid samples from the reactor. The liquid sample is then collected for further analysis.
Sampling Ejector or Sample Extraction Ejectors can be operated with Compressed Air or Compressed Nitrogen. Nitrogen being an inert media it does not react with the sample and thus does not contaminate it.
The performance of the Sampling Ejector or Sample Extraction Ejector can be controlled by regulating the Air or Nitrogen Pressure.
Typical Applications
- 1 LNG sampling
- 2 Viscous liquid sampling
- 3 Gas Sampling
Features of Sampling Ejector or Sample Extraction Ejectors
- Low Air / Nitrogen consumption
- 2 Delivers very high vacuum upto 85 Torr or 0.11 bar(a) or -9 mWC. This ensures effective extraction of gas samples from vacuum lines and also for liquid samples from tall reactors.
- 3 Ability to operate with wide range of motive (driving) pressure from 3 bar(a) to 7 bar(a).
- 4 Ability to handle very high temperatures
- 4 Being a static equipment provides a 100% gas tight seal which may not be possible in a dynamic equipment.
- 4 Standardized Model range – allows faster delivery times
- 4 Availability in multiple type of end connections – Flanged, Threaded, Hose
- 4 Available in a large variety of materials
| Metallic | Non Metallic |
|---|---|
| Carbon Steel | PTFE (Poly-tetra-fluoro-ethylene) |
| Stainless Steels SS 304 / SS 316 | |
| Exotic metals (Hastelloy, Inconel, Titanium) |
Benefits of Sampling Ejector or Sample Extraction Ejectors
- Ease of Operation – The ejector is switched On/Off entirely by controlling the Air / Nitrogen flow to the ejector. Hence it is not necessary to access the ejector for controlling its operation.
- Static Device without any moving parts – ensure long reliability and maintenance free operation.
- Use Compressed Air as energy input / fuel – Compressed air is readily available in most setups hence no additional infrastructure needed for operation.
- Tolerate entry of liquids & solids particles into the ejector – avoids abrupt breakdowns.
- Small & compact size – allows installation in tight spaces & difficult to access areas.
- Non sparking operation – can be safely used in hazardous & flammable areas
- Manufactured in multiple materials – allows using the most cost-effective & chemically compliant materials for the application.
Frequently asked questions (FAQs) about Sampling Ejectors:
Sampling Ejectors are used to efficiently and reliably extract samples from a process stream for analysis or monitoring. They are essential in ensuring that the samples are representative of the process conditions.
Sampling Ejectors can handle both gases and liquids, making them versatile for various sampling applications.
Sampling Ejectors being gas ejector require compressed gas for operation. In most cases compressed air or nitrogen is used as an input.
Sampling Ejectors are simple in design, have no moving parts, and can handle corrosive, abrasive, or viscous liquids. No moving parts inside the unit ensures very little maintenance requirements and reliable operation. The high vacuum created by a Sampling Ejectors helps to achieve quick and efficient Sampling.
Sampling Ejectors generally require minimal maintenance due to their robust design and lack of moving parts. Regular inspection and cleaning of nozzles, diffusers, and inlet filters is recommended to ensure optimal performance and prevent clogging.
