Priming Ejectors | Pump Priming Ejectors
Priming Ejector is simple devices that operate on the basis of the jet Venturi principle. During operation Priming ejectors are able to create vacuum at its inlet. Priming Ejectors utilize the energy in compressed air to create the vacuum
Centrifugal pumps are able to pump water only when the water is present in its suction line and pump casing. Most of the pumps are installed above the water level and hence water needs to be drawn up to the pump level to start the pump. This action of drawing water upto the pump level is known as priming & Priming Ejectors are used for this application
The vacuum generated at its inlet of the Priming Ejector sucks the air inside the suction line & pump casing thus decreasing the pressure inside the suction line. Due to the reduced pressure, water starts entering the suction line from its inlet. As the priming Ejector continues to operate, the pressure inside the suction line drops further and the water gradually gets filled up in the entire suction line. Once the water reaches the pump level the ejector can be switched off and pump can be started.
Typical Applications
- Priming of Centrifugal Pumps
- Priming for dewatering pump
- Priming of Chemical pumps
- Priming for Liquid Siphons
Salient Features of our Ejector Priming Unit
- Delivers high suction lifts of upto 7.5m – ensures priming for every possible installation.
- Can operate with Compressed Air pressures as less as 3 Bar(a) and from flows as low as 9 scfm – enables easy integration into existing compressed air setup.
- Available in both Manual and Fully automated version. Automated version does not require any human intervention required for operation.
- Standardised Models – ensures shorter delivery time and low costs
- Availability in multiple type of end connections – Flanged, Threaded
- Available in Bronze material – perfect compatibility with sea-water applications
- Available in Stainless Steel material – perfect compatibility with river water, sweet water, chemicals.
Benefits of Pump Priming Ejector & Unit
- Ease of Operation – The ejector is switched On/Off entirely by controlling the Air / 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 Priming Ejectors:
A Priming Ejector is a device used to prime centrifugal pumps by removing air or vapor from the pump casing and suction line, thereby creating a vacuum and allowing the pump to be filled with liquid. This process is essential for the proper operation of centrifugal pumps, which are not self-priming and require a liquid-filled impeller to function effectively.
The vacuum generated at its inlet of the Priming Ejector sucks the air inside the suction line & pump casing thus decreasing the pressure inside the suction line. Due to the reduced pressure, water starts entering the suction line from its inlet. As the priming Ejector continues to operate, the pressure inside the suction line drops further and the water gradually gets filled up in the entire suction line
The Priming Ejector is supplied in a wide variety of materials. By picking a compatible MOC a priming ejector can be used for any liquid type & composition.
Priming Ejectors are primarily used for centrifugal pumps, which are not self-priming. They may not be necessary for self-priming pumps or other types of pumps designed to handle air and vapor.
Water Supply Systems: For priming water pumps in municipal and industrial water supply systems.
Irrigation Systems: Ensuring irrigation pumps are primed and ready for operation.
Marine Applications: Priming pumps on ships for ballast, bilge, and fire-fighting systems.
Fire Fighting system: Rapid priming of high pressure pumps in Fire fighting systems.
Priming 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 Priming Ejectors helps to achieve quick and efficient Priming.
Priming 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.
