Vacuum Gauge Manufacturers and Companies

IQS Directory provides an extensive list of vacuum gauge manufacturers and suppliers. Utilize our website to review and source vacuum gauge manufacturers with our easy-to-use features which allow you to locate vacuum gauge companies that will design, engineer, and manufacture vacuum gauges for your exact specifications. Our request for quote forms make it easy to connect with leading vacuum gauge manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for high vacuum gauges, motorcycle vacuum gauges, or digital vacuum gauges.

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  • The Sensitive Vacuum Gauge

    When liquids and gases are concealed in a pressure vessel or some sort of sealed system, internal pressure is created. To measure this pressure, pressure gauges are utilized. Depending on the gauge, the devices can read between 10 and 10,000 psi. Vacuum gauges are a sub-category of pressure gauges that are used to measure sub-atmospheric or vacuum pressures within a contained system. Perhaps the most sensitive vacuum gauge is the ionization gauge, which is utilized to measure very low pressures. The ionization gauge measures electrical ions to indirectly sense pressure...

  • Upgrading the Alvin Submersible

    This past June, the Alvin upgrade project hit a major milestone. The new titanium personal sphere has been completed and thoroughly tested. The personal pressure vessel seats a pilot and two researches. It is apart of the greater Alvin submersible and will be reassembled later in the year. The sphere is designed to descend nearly 4 miles under the ocean surface which will generate 10,000 psi. If I were in that cramped submersible I'd be rather nervous having 4 miles of water above my head. To ensure the vessel is...

  • Lost in Space with Vacuum Gauges

    In 1808, a baby boy named Eugene Bourdon was born in Paris, France and grew up to make it on the prestigious list of notable inventors. Beginning his career as a watchmaker, he eventually moved on up the ladder as an engineer, ultimately hitting the nail on the head with his invention of what is appropriately referred to as the Bourdon gauge. You might be wondering, as was I, why this particular kind of gauge has everyone excited; the answer to this lies in its unique mechanism based on the...

  • Vacuum Gauges

    Pressure gauges are very important and valuable tools as they can communicate to us whether a piece of equipment is working properly or not. They can be found on many different types of machinery and equipment and give us constant readings. Most pressure gauges are round in shape and have numbers laid out on them similar to how a clock would and a needle moves to display the correct reading. There are also digital read out displays which allow for better accuracy and timeliness. Stainless steel and aluminum are the...

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View A Video on Vacuum Gauges- A Quick Introduction

Vacuum Gauges

Vacuum gauges are instruments used to measure and display sub-atmospheric or vacuum pressures within a system or vessel. High pressure gauges can be used to effectively read pressures up to 10,000 PSI; low pressure gauges generally measure pressures between 10 and 15 PSI. When gases and liquids are contained in sealed systems or closed vessels, internal pressure occurs.

When the atmospheric pressure within an enclosure is below ~14.7 PSI, that enclosure is said to be a vacuum. It is impossible to artificially achieve a pressure of zero, and there are no examples of absolute vacuums in nature or in space. An enclosure can, however, be partially evacuated of its contents. Vacuum gauges are used to measure the extent to which enclosures have been evacuated; they measure low pressure, not negative pressure. Vacuum gauges are made from metal such as stainless steel or aluminum. Some provide analog feedback in the form of a dial while others are digital meters. Gauge specifications include display types, scale types, vacuum range, operating temperature, accuracy and scale units. Dual scale devices provide the pressure reading in two sets of units while differential pressure gauges take and compare two pressure readings. Some vacuum gauges include temperature compensation features to adjust possible errors due to changes in temperature. These instruments play an important role in industrial, manufacturing and scientific applications. Vacuums are frequently used to create cold temperatures for certain processes; without gauges the operator would not know the internal pressure, which can be dangerous and inefficient.

Vacuum gauges use several methods to take readings. One way is through a manometer, a U-shaped tube partially filled with a liquid like water, mercury or oil. A change in pressure causes the water column in each side of the U to rise or fall, which is detected by a sensor and then indicated on the dial or screen. Thermocouple gauges use a different technique. They measure the changes in the thermal conductivity of a gas inside a tube. A filament is heated to promote movement. As electrons move from the source (cathode) to the drain (anode) they interact with the gas molecules, making them positive ions. This causes a current that is identified and measured. Similar gauges are also available with components that stay cool; this allows them to withstand sudden or prolonged exposure to high pressure gases. Vacuum gauges are also used in automobiles because of the presence of manifold vacuums that draw in air to power the engine of the vehicle. This vacuum regulates the ratio of fuel and air so the engine can run at peak performance. Automotive vacuum gauges help identify the presence of air leaks in the system, which results in a rough idle, poor fuel economy and increased emissions. These gauges are attached to a plug on the intake manifold of the engine.

Vacuum Gauges
Vacuum Gauges
Vacuum Gauges - AMETEK® U.S. Gauge
Vacuum Gauges - AMETEK® U.S. Gauge

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