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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.

Leading Companies:

  • Milford, CT 800-989-5657

    We manufacture several different types of differential pressure gauges and instruments—compound range differential, piston- and diaphragm-type differential, explosion-proof and miniature. When you want a single-gauge dial to measure your pressure difference, contact us.

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  • Minden, NV 775-782-1026

    Looking for quality pressure gauges to measure a gas or liquid pressure? Perma-Cal Industries, Inc manufactures a comprehensive line of affordable high quality pressure gauges for a variety of demanding commercial and industrial applications. All Perma-Cal Industries pressure gauges are manufactured with dependability, safety and affordability in mind. Call us today!

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  • Sturtevant, WI 262-886-2695

    SIKA USA is a developer and manufacturer of pressure gauges and a wide variety of other measuring and monitoring systems. We offer both standard pressure gauges and bourdon tube pressure gauges. Our pressure gauges are made with high-quality materials meant to withstand their environments and read accurately every time. Our pressure gauges are EN 837-1 compliant and are encased in stainless steel. They also come in different sizes, so finding one to fit your needs is simple.

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  • Lake Villa, IL 800-876-0036

    M & M Control Service, Inc. is a leading distributor of pressure gauges. We represent the top manufacturers in the industry to bring the highest quality products at competitive prices to our customers. Our expert staff is here to help every step of the way to ensure that our customers find a product that fits their needs.

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  • More Vacuum Gauges Companies

Vacuum Gauges Industry Information

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.

Quick links to Vacuum Gauges Information

Design of Vacuum Gauges

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.

Types of Vacuum Gauges

Vacuum gauges use several methods to take readings.

Manometer
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 on each side of the U to rise or fall, which is detected by a sensor and then indicated on the dial or screen.
Thermocouple
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.
Automotive Vacuum
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 Gauge Informational Video