Vacuum drying is a process that reduces the moisture in materials in a low-pressure environment, using less heat than traditional drying methods. It saves energy, is faster, and less damaging to materials. It also reduces risks to workers and allows for the recovery of moisture. Vacuum drying is a process where materials are dried in […]
Vacuum forming, or thermoforming, is a plastic molding technique used by hobbyists, designers, engineers, and in industrial settings. The process involves heating a sheet of plastic, draping it over a mold, and using a vacuum to adhere it to the mold. Common plastics used include polystyrene, polyethylene, polycarbonate, and acrylic. The process has limitations on […]
The vacuum brake system was the standard on trains until it was replaced by compressed air systems. The system works by inducing a vacuum in hoses that run throughout the train, but any break in the hoses renders the system inoperable. The system is still used by some rail operators with combined compressed air/vacuum brakes. […]
Vacuum trucks are vehicles with a storage container and vacuum motor used to pump wet or dry materials. They can be powered by the truck’s engine or a dedicated engine and are equipped with a boom for easier pumping. They can be used for pumping wastewater, contaminated soil, salt water, and more. The pump tubes […]
A vacuum aspirator is a medical device used in assisted delivery when a woman cannot deliver on her own. Soft and hard cups are available, but there are risks to the baby, including bruises, cuts, and blisters. Vacuum extraction is only used when the baby has started to descend, and it is intended to facilitate […]
Vacuum brazing is a metal joining process that uses a filler metal in a vacuum chamber to join two pieces of base metal. The filler metal flows between the two pieces of metal through capillary action and solidifies to act as an adhesive. The process produces a stronger bond than traditional brazing and eliminates the […]
Industrial vacuum cleaners remove various contaminants without spreading particles. Types include canister, HEPA, venturi, portable/backpack, ESD, and cockpit. They have different features, such as triple filtration and anti-static properties. Industrial vacuum cleaners are used across a variety of industries to remove toner, developer, lead, mold spores, soot, and other contaminants without spreading the deadly particles. […]
Vacuum conveyors use air pressure or suction to transport materials through an enclosed pipeline, commonly used in agriculture or food processing. They are customizable and efficient for transporting bulk goods over long distances, but can only be used with small or light objects and consume more energy. A vacuum conveyor uses air pressure or suction […]
Vacuum fryers fry food at low temperatures, reducing oil content and nutrient loss while maintaining flavor and texture. They can reduce the presence of carcinogens and increase the shelf life of food. There are two types of vacuum fryers, and the continuous fryer is more attractive to larger producers. Vacuum frying is more expensive than […]
Vacuum servos reduce the effort required to apply brakes in cars and trucks. They work by creating a pressure differential and consist of a large vacuum reservoir divided into two compartments. Vacuum is generated by internal combustion engines, while diesel or electric engines use a vacuum pump. Vacuum brake boosters provide full braking power as […]
An atmospheric vacuum circuit breaker prevents contaminated water from flowing back through a water system. It includes an inlet, outlet, and vent with a holding valve and must be installed vertically and at least six inches higher than the water system outlet. An atmospheric vacuum circuit breaker (AVB), also called an atmospheric type vacuum circuit […]
A vacuum table uses suction to hold a workpiece in place during machining or cutting. It can be purchased or made by attaching a vacuum unit to a worktop. The force of the vacuum required depends on the material being worked on. A vacuum pump creates a vacuum inside the box, pulling air down through […]
Vacuum sewage systems use negative pressure to transport waste to a processing plant. They offer cost-effective and environmentally friendly benefits, using less water and electricity. Pumps maintain the negative pressure, and valves must be properly maintained to avoid disturbing the pressure balance. A vacuum sewage system relies on negative pressure to transport waste to a […]
Vacuum relief valves prevent damage to piping systems caused by vacuum forces. They open when pressure drops dangerously low, allowing materials such as fluids, gases, and air to compensate for the pressure drop. Valve materials match those of the piping system for proper sealing. Vacuum relief valves are installed within systems that have a significant […]
Vacuum casting draws molten metal into a mold, reducing turbulence and preventing impurities. It is cost-effective and efficient, with a higher quality final product. Vacuum sand casting and elastomer casting are also used with similar benefits. Vacuum casting is one of the three main casting methods that can be used to draw materials into molds. […]
Choosing the best commercial backpack vacuum cleaner depends on factors like power, cleaning tools, hose and cord length, and filters. They are convenient and portable, but more expensive than other types of vacuums. A model with at least 900 watts and a 50-foot reach is recommended. Choosing the best commercial backpack vacuum cleaner depends on […]
Vacuum metallizing is a physical process that produces a thin, uniform metallic coating on various materials, including plastic, glass, metal, and paper. The process involves vaporizing a metal plating material in a vacuum chamber, which then condenses on a workpiece to create a decorative or functional finish. The type of workpiece and coating material used […]
Vacuum breakers prevent hazardous materials from entering plumbing systems during a loss of pressure. They are inexpensive and easy to install, but cannot be used in areas with airborne contaminants. Plumbers can determine if they are needed and where to install them. Hardware stores carry various styles and sizes. In plumbing systems, a vacuum breaker […]
Oil vacuum refers to the use of vacuum technology with petroleum products to perform a desired function. It can be used to draw oil out of equipment for servicing, distill petroleum products, or be a dummy device in a scam. The type of oil vacuum is clear from the context. An “oil vacuum” can be […]
Otto von Guericke demonstrated the power of a vacuum in 1663 by using horses to try and separate two copper hemispheres. Vacuum pumps were originally used by chemists to study gases and electricity, but have since evolved to play a practical role in manufacturing. There are two types of vacuum pumps: compressed air and electromechanical. […]
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