Compact. Efficient. Engineered for Reliable Vacuum Generation.
SED’s Jet Ejector is a high-performance, non-mechanical vacuum-generating device designed to create and maintain vacuum conditions by harnessing the kinetic energy of a motive fluid - typically water. Through precision-engineered hydrodynamic nozzles, it converts pressure energy into high-velocity streams that entrain air, vapors, or non-condensable gases (NCGs), effectively removing them from the system.
Built for durability and efficiency, SED Jet Ejectors provide a low-maintenance, energy-efficient alternative to mechanical vacuum pumps, making them ideal for industrial processes requiring dependable, continuous vacuum performance.
How It Works
The SED Jet Ejector operates on the principle of momentum transfer:
Motive Fluid Acceleration
Water or another motive liquid is forced through a hydrodynamically designed converging nozzle, transforming pressure energy into kinetic energy.
Entrainment of Secondary Fluid
The high-velocity jet creates a low-pressure region, drawing in secondary fluids such as air, vapors, or non-condensable gases from the suction side.
Mixing & Compression
The motive and suction fluids mix in the mixing chamber, where their momentum equalizes. The resulting mixture then passes through a diffuser section, where its velocity energy is reconverted into pressure energy.
4. Vacuum Creation & Discharge
Continuous entrainment and discharge of gases establish a stable vacuum within the system, enabling efficient process operation without moving parts.
This simple yet powerful mechanism ensures smooth, silent, and maintenance-free vacuum generation.
Key Advantages
Compact Design with Fast Evacuation
Compact form factor allows easy installation even in space-constrained areas while enabling rapid system startup and vacuum stabilization.
Hydrodynamically Designed Nozzles
Specially engineered jet nozzles amplify the suction effect, ensuring efficient entrainment of gases and reduced motive fluid consumption.
Customized Tailpipe & Flow Geometry
Each ejector is optimally designed for its specific gas load and process conditions, ensuring consistent pressure recovery and smooth discharge flow.
Maintenance-Friendly Configuration
Includes hinge-type top covers and hand-hole access, simplifying cleaning, inspection, and servicing-minimizing downtime and operational effort.
Non-Mechanical & Energy Efficient
No moving parts, no lubrication, and minimal power usage result in high reliability and low operating costs.
Compact Design with Fast Evacuation
Compact form factor allows easy installation even in space-constrained areas while enabling rapid system startup and vacuum stabilization.
Maintenance-Friendly Configuration
Includes hinge-type top covers and hand-hole access, simplifying cleaning, inspection, and servicing-minimizing downtime and operational effort.
Hydrodynamically Designed Nozzles
Specially engineered jet nozzles amplify the suction effect, ensuring efficient entrainment of gases and reduced motive fluid consumption.
Non-Mechanical & Energy Efficient
No moving parts, no lubrication, and minimal power usage result in high reliability and low operating costs.
Customized Tailpipe & Flow Geometry
Each ejector is optimally designed for its specific gas load and process conditions, ensuring consistent pressure recovery and smooth discharge flow.
Salient Design Features
Static and Maintenance-Free : No rotating components - reliable long-term operation.
Optimized Motive Water Consumption: Balanced for performance and sustainability.
Wide Operating Range: Available in single-stage or multi-stage configurations for different vacuum levels.
Tailor-Made for Process Load: Designed as per specific air/NCG volumes and required discharge pressure.
Corrosion-Resistant Materials: Manufactured in SS304, SS316, Duplex, Titanium, or special alloys as per process compatibility.
Easy Integration: Compact assembly allows retrofitting into existing systems or coupling with spray condensers.
Applications Across Industries
SED Jet Ejectors are widely used across industries for vacuum generation, gas evacuation, and vapor handling:
Sugar Industry
Air and NCG removal from evaporators and pans.
Distilleries & Biofuel Plants
Maintains vacuum during alcohol distillation and concentration.
Chemical & Petrochemical Units
Used for vacuum distillation, drying, and degassing operations.
Pharmaceutical & Bulk Drug Processing
Ensures contamination-free vacuum generation.
Power Plants & Utilities
Assists in condenser evacuation and auxiliary system startup.
Why Partner with SED?
With decades of expertise in process and thermal engineering, SED delivers precision-engineered solutions backed by proven field performance.
Our Commitment Includes:
- End-to-end system design & CFD-based optimization
- Fabrication in advanced materials with strict QA/QC
- Integration with spray condensers and vacuum systems
- Reliable service, retrofitting, and global support
Frequently Asked Questions
Revolutionizing Efficiency. Setting New Standards.
Step into the future of vacuum technology with SED’s Jet Ejector Systems - a compact, efficient, and sustainable solution engineered for superior performance and reliability.
Consult Our Experts