Vacuum pumps and compressors are used in many applications in the chemical industries. Technologies used are dry running and oil lubricated rotary vanes, liquid ring and rotary screw pumps as well as ejectors. Engineered systems designed and built for our demanding customers assure safe and reliable operation.
Compressed air can also be found in numerous uses in this industry. Both oil lubricated and oil free compressors deliver a safe and reliable form of energy that can be used on both sensitive products and in hazardous environments.
Another product range is available for the safe transfer of chemical and petrochemical liquids in bulk at both standard and high pressure.
Bioethanol is produced using fermentation and biodiesel goes through a transesterfication process. Both methods use vacuum, which is involved in steps such as distillation, rectification, and filtration.
Positive displacement and truck blowers, hydraulic coolers, reciprocating and rotary screw compressors, air audits, petroleum and industrial pumps, vacuum and water jetting systems, air treatment and genuine replacement parts.
Reliable, quality liquid ring compressors with the features and performance necessary for all demanding applications. Performance range: 0 to 15 mbar abs.
The Hoffman multistage centrifugal blowers and exhausters are capable of a variety of design options, field support, parts, accessories and lubricants to improve efficiencies in your application.
The Lamson multistage centrifugal blowers and exhausters are capable of a variety of design options, field support, parts, accessories and lubricants to improve efficiencies in your application.
Emco Wheaton & Todo has the broadest product range available anywhere in the world today, for the safe transfer of chemical and petrochemical liquids in bulk at both standard and high pressure. Products and sytems provided include Marine, Road and rail Loading and unloading arms, Dry Break couplers and adapters, hydraulic couplers and break-away systems.
Complete fluid transfer solutions including road, rail and marine loading systems, gantry access equipment, tank truck equipment, refueling nozzles and Dry-Break Couplings.
Fluid and gas transfer solutions including a large selection of Dry-Break coupling sizes and material types, Break-Away couplings and Hose Swivels.
In this application, chlorine gas is recovered and compressed. The seal liquid is concentrated (> 96%) sulfuric acid. Materials used must be compatible with this highly dangerous gas and seal liquid.
When industrial surfaces are coated, metal vapours are handled under vacuum. In typical processes the metal condenses as a thin layer on the surface of the substrate. Vacuum is necessary to keep the metal vapours under pressure.
This brand excels in high quality blowers, vacuum and fluid transfer technologies. Our products cover a unique range of technologies: radial, side channel, liquid ring, oil lubricated and dry running rotary vane, rotary lobe, claw and screw.
Clean oil free compressed air can also be used in the chemical or pharmaceutical process, coming in direct contact with products. Chemical processes often need large volumes of clean oil free air, making Quantima the ideal selection.
We manufacture, sell and service a complete range of world class rotary screw, piston, centrifugal compressors, including high-pressure, oil-free and portable models, and an extensive air treatment line.
Champion offers reciprocating and rotary screw air compressor systems, parts and service. Performance ranges from 1.8 to 255.6 cfm.
A market leader in the manufacture and global distribution of rotary vane compressors, covering both air and gas applications. Performance range: up to 100 hp (75kW) and 474 cfm (13.43 m3/min)
We offer a wide range of cost efficient oil injected screw, piston and portable compressors, as well as a complete air treatment range. Performance range: up to 125 hp(90 kW) and 382 cfm (10.8 m3)
Using materials and designs to make pumps resistant to aggressive chemical fumes, the Welch-Ilmvac brand provides a wide range of vacuum level, flow, and control products and systems. Our technology helps the chemical industry develop, analyze, and produce the component ingredients found in many modern products.
Welch-Ilmvac provide high quality vacuum pumps and systems for laboratory, life science, chemical, refrigeration and light industrial applications.
Surfaces are cooled through the controlled evaporation of water or other solvents. The latent heat of the substrate and the vacuum remove the localised heat, causing a cooling effect.
Crystallization is accomplished by evaporation and cooling of a supersaturated liquid to form crystals. These crystals are easy to handle, store, and are sold in this finished form. Liquid ring vacuum pumps are ideal for controlling the evaporation/cooling rates across all pressure ranges to reduce production cost by lowering the boiling point of the liquid.
Degassing is the removal of dissolved/trapped gases from a liquid or product. Vacuum created by liquid ring pumps allows the vapor to be removed from the liquid. This improves the product's physical characteristics to allow further processing, and thus avoiding cross contamination and corrosion.
Distillation is the separation of two or more distinct layers or zones, which differ in temperature, pressure, composition or phase state. As the tower moves to equilibrium, each zone will have a different concentration, and thus, can be separated from the original mixture. Simply put, the distillation column provides an atmosphere where each liquid component can separate from another by changing the vacuum and temperature. The vacuum system removes the non-condensable load, water and light ends from the system allowing the feedstock to be processed through the column to achieve separation. The gas removed from the top of the tower is condensed, and the liquids are reintroduced into the tower for further separation. Typically used on fatty acids, monoglycerides, vitamins (A,E), oils, esters, paraffins, insecticides, plasticizers, etc.
Drying is a low cost, relatively low temperature process where the biological or active ingredient is not harmed/degraded/oxidized by pulling vacuum to evaporate liquids from the solids. Pharmaceutical/biological products are dried to remove solvents, water, etc. and typically require a vacuum below 1 torr in the final drying stage. The remaining cake is granulated, blended, and pressed into pills. The low residual moisture levels make the product useful for longer term storage.
Creams and pastes require removal of air when filling tubes, etc. This is accomplished with small liquid ring pumps located on the filling machine. Liquid transfer occurs by using a vacuum pump to fill the tank and then discharge it via a compressor. This is accomplished with liquid ring vacuum pumps.
Oberdorfer offers a fine line of quality Chemsteel pumps designed to handle common and highly-corrosive liquids that must be pumped under pressure. Manufactured to precise tolerances, the Chemsteel pump line prevents system contamination while maintaining the purity and integrity of the source liquid. Additionally, Chemsteel pumps offer bi-directional operation for applications requiring reversing flow.
Manufacturing high quality, dependable gear, centrifugal, chemsteel and rubber impeller pumps for use in industrial, marine and chemical applications.
Gases must be compressed before they can be pumped through pipelines for further use. In many cases this compression is also necessary in order to reduce the volume of storage space required.
This application involves the recovery of hydrogen gas. The low molecular weight of hydrogen and its explosive nature create challenges when selecting equipment. NASH compressors are ideally suited for this application due to their liquid ring technology, which minimizes the chance of explosion.
Impregnation involves the following process: the final product, a motor winding for example, is evacuated in a receiving vessel. A suitable impregnating agent, such as a resin, penetrates the surface of the material under vacuum.
Emco Wheaton & Todo designs, manufactures and supplies a broad range of solutions for the ink and solvents industry. Products and sytems provided include marine, road and rail loading and unloading arms, Dry Break couplers and adapters, hydraulic couplers and break-away systems.
Chemicals can be conveyed safely and economically with stand-alone compressors or vacuum pumps and central systems. Dust free and therefore loss-free conveying, simple design of the piping and no deformation of the conveyed material are assured.
Portable air compressors have been used in the chemical industry for many years, oil and gas storage terminals, where product is pumped ashore from waiting ships. They are a flexible and reliable source of air which can be moved and placed in any safe location. They are also used in cleaning processes where in normal operation electricity can not be used.
Reactors are used in fine chemical, pharmaceutical and fragrance industries. The vacuum is used to reduce/control the temperature of the reaction, remove reacted products, reduce cost, control/improve product quality, and recapture product. There is a wide array of chemical processes suitable for using liquid ring pump technology. These include: pharmaceutical intermediates, chemical reactions for neutralization and adsorption, stripping/cracking of hydrocarbons and other chemicals, and synthesis of chemical compounds.
Vacuum systems are used to draw off and recover VOC’s without releasing them to the atmosphere. Often times, a liquid ring pump is the ideal choice, as the gaseous VOC’s can be condensed inside the pump. Typically, the same VOC’s are used as the pump seal liquid, so pure product is recovered in the liquid state. Environmental emissions are reduced and valuable product is recovered.
This process, which is also called molecular evaporation, is used to separate substances that have narrow boiling point ranges. Such equipment has a special design that only operates properly at specific vacuum levels.
In this application, the moisture from the filtrate receiver of a vacuum filter is collected and fed back into the system. If a system upset occurs, such as the failure of the filtrate pump, slugs of liquid can carry over into the vacuum system. Soft solids from the filter can also enter the vacuum system. In both cases, the liquid and soft solids will not damage the liquid ring vacuum pump, improving the overall reliability of the vacuum filtration system. A variety of seal liquids compatible with the process vapors may be selected in order to minimize contamination of gases extracted during the filtration process.
This application differs from vent gas recovery in that the vapors recovered are of a relatively fixed composition rather than a variable mixture. A typical application is capturing gases vented from storage tanks. The vacuum level is closely controlled in order to protect the storage tanks. Usually the discharge pressure is relatively low. Often these gases are returned to the process or are liquified and returned to the storage tanks.
With locations in 34 countries, Gardner Denver is strategically positioned to support its customers anywhere in the world.