High vacuum pumps are used to remove gas molecules from a chamber. A vacuum pump lowers the pressure inside and creates a vacuum. High vacuum pumps are used when an extremely low final absolute pressure is needed. At atmospheric pressure, these pumps may constantly operate when linked to closed containers that need to be emptied, although they may only operate continuously for a short time. These pumps’ exhaust is not filtered. Hence fume cleaners with a specific design are available. The lubricated rotary vane and high vacuum pumps operate on the same principles. Read More…
High Vacuum PumpsA vacuum pump is simply a product that is used to remove gas molecules from and reduce the pressure within a chamber, creating a vacuum.
Gardner Denver provides vacuum pumps products such as rotary vane vacuum pumps, oilless vacuum pumps, linear and rotary piston pumps for a number of markets and applications. Provides excellent customer service to compliment their line of high-quality products.
MDC Vacuum Products manufactures vacuum components, including butterfly valves, vacuum gauges, and vacuum pumps. Our cryogenic sorption vacuum pumps are an economical roughing source, attaining up to 1x10-3 Torr vacuum level. Other features of our pumps include: clean vibration-free operation, heat regeneration, a positive pressure safety vent, no moving parts, and multiple pump capacity.
Here at US Vacuum Pumps, our broad range of industrial vacuum pumps cannot be topped. It is our dedication to our craft that makes us your premier choice for all of your vacuum pump needs. We will work with you in order to come up with a product that will fit your needs perfectly. All products are available for immediate shipment. To learn more, visit our website or send our qualified staff an...
We are a manufacturer of vacuum pumps, liquid ring vacuum pumps and rotary vane vacuum pumps. We provide custom-engineered, reliable vacuum pumps to meet all your needs. We also offer FloGard® RCP for monitoring the wear and tear on your vacuum pump to foresee problems before they happen.
In this instance, the stator is submerged in lubrication oil, which also serves as a sealant for air loss. These pumps are capable of greater pressures than any other rotary vane pump. A gas ballast system is included with these pumps to prevent the condensation of water vapor. High vacuum pumps can be constructed of two rotor-stator groups connected in series, with the first group drain connected to the second group’s intake system. They can be made of a single rotor-stator group (single stage) or two rotor-stator groups (dual stage).
How a High Vacuum Pump Works
The primary purpose of a vacuum pump is to modify the pressure inside a constrained area to physically or chemically produce a full or partial vacuum. Gas molecules will always move from high pressure to low pressure to fill the full area of that volume, attempting to equalize pressure across connected regions.
As a result, gas will naturally flow from a high-pressure area to the new area of low pressure until they are at equal pressure if a new low-pressure space is added. Remember that pushing molecules rather than "sucking" gases creates a vacuum. By switching between high and low-pressure states, vacuum pumps transport gas molecules from one area to another to create a vacuum.
Types of High Vacuum Pumps
Many different pump designs have been developed to produce high or ultra-high vacuums. One of these two operating principles, gas transfer or gas capture, is used by each type.
Molecular Drag Pumps and Turbo/Drag Pumps
These are hybrid vacuum pumps with similar design elements to both operating principles. These pumps combine the benefits of both types of pumps, notably the lower ultimate pressure of the turbo pump and the capacity for higher backing pressure of the drag pump. They do this by combining blades and ridged drums.
Molecular drag pumps use a rotor drum with a ridged surface and a cylindrical stator in place of a stator and rotor blades to provide gas molecules with a preferential motion and produce molecular flow through the pump. The name molecular "drag" pump refers to how gas molecules are physically dragged along the surface by this mechanism. These pumps can reach only 10-6 Torr as their maximum operating pressure. Therefore, these pumps are utilized for frequent cycle operations and applications with low conductance (pressure drop or resistance through the system).
Vacuum pumps that function on the gas-capture or gas-binding principle produce vacuums by physically engulfing gas molecules and retaining them in a frozen form. Compared to gas-transfer pumps, these pumps normally have fewer moving components, but they need to be periodically regenerated since they eventually become saturated with the material they are collecting.
Gas-Jet (Diffusion) Pumps
Gas-jet pumps, also known as diffusion pumps, use high-speed jets of diffusion vapor to sweep gas molecules out of the system and impart momentum. They are among the high vacuum pumps that are most frequently utilized. The extended service lives, lack of moving parts, and high reliability of diffusion pumps make them ideal.
Lighter gases like helium and hydrogen can be pumped at the fastest possible rate, thanks to them. Oil back streaming in oil diffusion pumps and process contamination are potential issues that can be mitigated by installing baffles and traps. Under the right circumstances, these pumps may achieve maximum vacuums of 10 Torr.
Compatibility of Materials
To avoid wear or corrosion and to guarantee a safe and hygienic operation, high vacuum pumps, as well as the lubricants and building materials used in their manufacture, must be compatible with the fluids they move or catch. In addition, since most pumps may pump various gases at various rates, the type, and consistency of gas being handled also affect the pump's performance. For instance, a cryopump will pump water vapor far more quickly than a turbomolecular pump of comparable size, but both pumps may pump nitrogen at the same speed.
Applications of High Vacuum Pumps
They are used in laboratories for various research operations such as photolithography, electron microscopy, etc.
They are used in vacuum coating glass, metals, and plastics. In addition, they are used for hard coating engine components on race cars.
They are also used to assist with the mechanical drives in hybrid and diesel engines. In addition, they provide a power supply to the camshafts.
They are used in the gas bottle filling and emptying application used in CRT, electric light, and bulbs for filling the bulb chambers with inert gases.
They are also used in hydraulic brakes, cruise control systems, dampeners in the ventilation systems, and door lock mechanisms.
They are employed in numerous processes, including freeze-drying, degassing, gel-drying, and others.
Additionally, they are employed to support the mechanical drives in diesel and hybrid engines. Additionally, they supply camshafts with power.
They can be applied to identify leaks.
Choosing the Right High Vacuum Pump Supplier
To make sure you have the most positive outcome when purchasing high vacuum pumps from a high vacuum pump supplier, it is important to compare at least 4 to 5 companies using our list of high vacuum pump suppliers. Each high vacuum pump supplier has a business profile page that highlights their areas of experience and capabilities and a contact form to directly communicate with the supplier for more information or request a quote. Review each high vacuum pump business website using our patented website previewer to get an idea of what each business specializes in, and then use our simple RFQ form to contact multiple high vacuum pump businesses with the same form.
High Vacuum Pumps Informational Video
Vacuum Pump Power Pages
A vacuum pump is a piece of equipment capable of generating a partial vacuum or a low-pressure space by drawing gas molecules out of a sealed chamber. A vacuum is a relative state at which the chamber pressure has...
A centrifugal pump is defined as a hydraulic machine that changes mechanical energy into hydraulic energy by the use of centrifugal force acting on the fluid. This is a machine that uses rotation to enforce velocity on a liquid, the velocity will then be...
A metering pump is a precision machine that moves or pumps a measured amount of fluid in a predetermined time to create volumetric flow. The term “metering pump” covers a wide range of pumping methods, each designed to meet the needs of...
Rotary Vane Vacuum Pumps
Rotary vane vacuum pumps are vacuum pumps that generate low-pressure zones by rotating the moving parts against the pump casing. The mating surfaces of the rotor and the housing have very...
A ball valve is a shut-off valve that allows or obstructs the flow of liquids and gases in a piping system by rotating the ball having a bore inside the valve for 90°. The ball is mounted against two seats and has a stem that connects it to the operating and control mechanism that rotates the ball...
A butterfly valve is a quarter-turn rotational motion device that utilizes a rotary disc to allow, obstruct, or control the flow of fluids in a piping system. It features a rotating disc that is situated on the passageway of the flowing media...
A check valve is a safety device designed to allow fluids and gases to flow in one direction. Under pressure, fluids enter the valve at the inlet and exit through the outlet. Uninterrupted flow continues until the pressure drops, or the pump is shut down...
PVC Ball Valves
A PVC or polyvinyl chloride ball valve is a plastic on and off valve that has a rotary ball with a bore where turning the ball a quarter turn can stop the flow of a fluid. They are highly durable, cost effective and can be...
Types of Sump Pumps
Battery powered sump pumps are very similar to any of the other types of sump pumps. When the water level reaches a preset level, the pump is activated by the float and water is pumped out. The main difference between a regular sump pump and...