Dry running piston pump have a simple operating principle; a piston moves back and forth in a cylinder. The cylinder is fitted with valves that draw air in (when the piston moves down) and blow it out (when the piston moves up).
The piston thus draws air through inlet valve and expelling through outlet valve.
These pumps have a rugged design which provides high pressure and low maintenance.
A fan with small fins rotates within a stator. The centrifugal force and the rotation create small vortexes of air that are drawn by the blades from the intake to the exhaust.
There are no parts in contact and thus blowers do not require routine maintenance; however they may run continuously only within certain pressure ranges, since the intake air is also used as the cooling medium. This product is very versatile and robust. If used as a compressor, its output flow is clean and non-pulsating.
The rotor rotates eccentrically within a cylindrical body. The rotor has grooves into which the vanes are free to slide. During operation centrifugal force pushes the vanes out into contact with the body. This creates closed spaces between the blades that gradually increase the volume by bringing in air from the container to be emptied and expelling it through the exhaust. If used as a compressor, the air drawn in from the environment is conveyed to the exhaust to be used.
The rotor rotates eccentrically within a cylindrical body. The rotor has grooves into which the vanes are free to slide. During operation centrifugal force pushes the vanes out into contact with the body. This creates closed spaces between the blades that gradually increase the volume by bringing in air from the container to be emptied and expelling it through the exhaust. If used as a compressor, the air drawn in from the environment is conveyed to the exhaust to be used. Oil lubricated versions allow deeper levels of vacuum to be achieved.
The operating principle is similar to oil lubricated rotary vane, however the rotor is immersed in oil which also has a function of sealing any air leaks. The vacuum levels achieved therefore by this type of unit are therefore considerably higher than standard rotary vane units.
A gas ballast is also present to stop condensation of any water vapour. This type of pump can be made up of a single rotor unit (single stage) or a twin rotor twin body unit connected in series (two stage). The exhaust of the first of the 2 bodies is connected to the second body so to attain a lower absolute pressure compared to single stage.
Applications:
Laboratory and Research, Refrigeration and Air Conditioning, Freeze Drying
Claw pumps run dry – the internal claws of the pump are synchronized by gears without the need for any lubrication in the pumping chamber. This avoids any residue generated by friction or touching during rotation. The gears are lubricated with oil but enclosed in two compartments.
Claw Pumps offer high energy efficiency, low power consumption and guarantee lower operating costs than standard rotary vane pumps. Maintenance is minimized and performance is maintained for longer by virtue of the lack of friction between the moving parts. All versions can be used as vacuum pumps or compressors.
Applications:
Environmental, Food and Beverages, Medical, Packaging, Pneumatic Conveying, Wood Working, Glass and Marble Handling, Plastic, Rubber and Resin
Complete systems can be as simple as a valve and filter fitted to a unit, right through to a fully centralised and automated vacuum and pressure system for a complete factory.
By combining the expertise and experience gained from previous system builds, along with up to date knowledge of the best and most efficient components, Vacuum Pumps UK can engineer tailored solutions to meet our customers needs and provide the most efficient system in terms of capital cost/rate of return, energy efficiency and latest legislative requirements.
Applications:
Printing central systems, Packaging central systems, Lifting, holding, clamping, Impregnation/resin infusion vacuum bagging, Conveying, Hospital and medical systems Food packaging, Ground Remediation, and many more
