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This section provides an overview for vacuum/pressure combined gauges as well as their applications and principles. Also, please take a look at the list of 22 vacuum/pressure combined gauge manufacturers and their company rankings. Here are the top-ranked vacuum/pressure combined gauge companies as of December, 2024: 1.CKD, 2.NESSTECH INC., 3.HighVac Depot.
Table of Contents
A vacuum pressure gauge is a pressure measuring instrument that measures negative pressure below atmospheric pressure.
There are three types of pressure gauges: pressure gauges, compound gauges, and vacuum gauges. Each of these instruments has a different range of pressure that can be measured: a manometer can measure only positive pressure, a compound gauge can measure a limited range of positive and negative pressure, and a vacuum pressure gauge can measure only negative pressure.
Therefore, care should be taken not to use vacuum gauges for measurements other than negative pressure, as this may cause malfunctions.
Vacuum pressure gauges are used in plasma etch spaces in semiconductor manufacturing equipment, metallurgy, organic synthesis, and other laboratory facilities. Other applications include ion beam equipment, vapor deposition equipment, and processing facilities requiring surface cleanliness.
For operations in which air is removed from piping to create a vacuum and then fill the piping with gas, vacuum pressure gauges are used to measure the degree of vacuum. A familiar example is when installing a new air conditioner.
By filling the inside of the air conditioner piping with cooling gas only, the air conditioner can be operated without malfunction.
There are three main methods for measuring vacuum pressure: mechanical phenomena, gas transport phenomena, and gas ionization phenomena.
Measurements using mechanical phenomena can be made with U-tube manometers, McLeod vacuum gauges, diaphragm vacuum gauges, Bourdon tube vacuum gauges, and dead-weight vacuum gauges.
U-Tube Manometer
This differential pressure gauge is a glass U-tube, one end of which is sealed by exhausting it into a vacuum. It is capable of reading the pressure difference of gases from the height of the liquid column produced by the pressure difference, and is not affected by the type of gas. Therefore, it can measure absolute values of pressure.
McLeod Vacuum Gauge
This mercury liquid column pressure gauge is designed to measure high vacuum pressure. It is equipped with a mechanism that compresses gas to expand pressure and can measure absolute pressure.
Diaphragm Vacuum Gauges
This method reads the amount of deformation caused by pressure on the diaphragm mechanically, optically, or electrically.
A thermal conductivity vacuum pressure gauge is a vacuum pressure gauge that makes use of the gas transport phenomenon. It utilizes the property that the thermal conductivity of a gas varies with pressure.
There are many types of thermal conductivity vacuum gauges, including Pirani vacuum gauges, thermistor vacuum gauges, and thermocouple vacuum gauges. The important point to note about thermal conductivity vacuum gauges is that, at high vacuum, the effect of thermal radiation is greater than that of thermal conductivity. Therefore, thermal conduction vacuum gauges have the disadvantage that they cannot be used to measure high vacuum.
The Pirani vacuum gauge is a measuring instrument that detects changes in electrical resistance. It is based on a method in which an electric current is applied to a thin platinum resistance wire, and the change in platinum resistance due to heat lost by collision of gas molecules is detected by a bridge circuit.
This method uses the phenomenon of gas ionization to measure vacuum. There are several types of vacuum gauges, including hot cathode ionization vacuum gauges, cold cathode ionization vacuum gauges, and radiation vacuum gauges.
Hot Cathode Ionization Vacuum Gauge
The hot cathode emits thermal electrons to ionize the gas, and the ions produced are measured.
Cold Cathode Ionization Vacuum Gauge
This method ionizes gas by cold cathode discharge and measures ions.
Radiation Vacuum Gauge
Measures ions produced by radiation.
Because there are numerous types of vacuum pressure gauges, the appropriate vacuum gauge must be selected for the intended purpose. The vacuum space for the purpose of measurement can be classified as low vacuum, medium vacuum, high vacuum, or ultrahigh vacuum.
U-tube mercury manometers and diaphragm vacuum gauges can measure in the low vacuum range. McLeod vacuum gauges can measure from high vacuum to low vacuum.
Pirani vacuum gauges are able to measure in the region of low to medium vacuum, and ionization vacuum gauges measure in the region of medium to ultra-high vacuum.
*Including some distributors, etc.
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Cincinnati Test Systems (CTS) is an American manufacturer of leak testing systems and instruments that was established in 1981 as a subsidiary of the TASI Group of Companies. Based in Harrison, Ohio, the company produces leak testing equipment for various scenarios including pressure or vacuum decay, helium leak or recovery, and mass flow. It also offers CTS Connect branded air-actuated and manual connectors, as well as assembly verification and functionality test systems. CTS products are used primarily by clients that require high precision leak detection capabilities, such as those in the oil and gas, marine, chemical processing, and energy production industries.
The Fredericks Company, founded in 1935, is a manufacturing company specializing in the electrical/electronic manufacturing, industrial machinery & equipment areas, based in the United States. The company is a manufacturer of tilt measurement and vacuum measurement products for customers’ application. It has an extensive line of high-geared, off-the-shelf products, or can provide an individual solution custom-engineered to customers’ needs. All of its products are designed and manufactured at its facility in Huntingdon Valley, PA. It works side-by-side with OEM customers across the world in a wide range of markets and literally hundreds of applications.
Poolweb, established in 1994 and headquartered in Maine, is a supplier of swimming pool equipment and safety gear for residential pool owners and commercial facilities. The company offers a wide range of swimming pool supplies, filtration systems, and aquatic safety equipment. Its product line includes items like chemical monitoring systems, pool lift chairs, rope floats, pool safety products, and stick-on depth markers. It has multiple warehouses across the United States to provide efficient shipping to its clients.
GlobalSpec, based in NY, United States, is an online destination for engineers, delivering the single source for critical engineering content, information, insight, and community for engineers and technical professionals across multiple industries and disciplines. The company's website offers information comprised of news and analysis, products and suppliers, standards directory, and reference library – a gateway to more than 95 million engineering documents, including technical articles, reports, patents, and e-books, and more. They connect industrial marketers with their target audience of engineering and technical, professionals – generating awareness, demand and engagement opportunities at all stages of the buy cycle.
CKD Corporation, established in 1943 under the name of Japan Aircraft Electric Co., Ltd., is a Japanese manufacturer of automation machinery and manufacturing components, headquartered in Komaki, Aichi. Their diverse portfolio includes pneumatic and fluid control components, fine system components, drive components, and labor-saving components. The company has also developed various types of automation machinery, such as transparent object inspection systems, pharmaceutical products packaging machines, and more. These products find applications in various industries, for example their automated food packaging systems are designed for maintaining food quality and hygienic conditions. Their fluid control components are used in the solar cell manufacturing process.
Nesstech Inc., established in 1956 and based in Chiba, Japan, is a manufacturer of temperature and pressure measuring instruments. The company produces gauges with a unique “Gearless” mechanism which allows them to be used under severe vibration and pulsation without any dampening liquids or accessories. The company has an office in Malaysia, and a production facility in India to provide diverse support to all the customers across the world.
Established in 2006, Testo India Pvt. Ltd., a Pune, India-based subsidiary of Testo SE & Co. KGaA, is a manufacturer and supplier specializing in measuring instruments. Complying with the ISO/IEC 17025:2017 standard set by the National Accreditation Board for Testing and Calibration Laboratories (NABL), the company produces measuring instruments for temperature, humidity, pressure, and flow (bulk fluid movement). The company also offers electrical, sound level, and nanoparticle measuring devices. These products are designed for industrial applications with regard to heating, ventilation, air conditioning, and refrigeration (HVAC-R), as well as environmental monitoring technology, in sectors like food service, retail, and pharmaceuticals.
HYODA INSTRUMENTS CORPORATION is a manufacturer of thermometers and related measurement as well as control devices that was established in Osaka, Japan in 1917. The company’s product lineup includes protective relays for monitoring abnormal transformer functions, dial thermometers, thermo sensors, and pressure gauges for measuring refrigerant gasses in air conditioning systems. It also offers gas density switches and protective tubes for insulating thermo sensors from vibration pressure or corrosion. The company’s products are commonly used in light industry, heavy industry, and shipbuilding, as well as in petrochemical and nuclear power plants.
The Azbil Corporation (formerly the Yamatak Corporation) aims to realize safety, comfort, and fulfillment in people's lives and contribute to global environmental preservation through "human-centered" automation. They provide their customers with timely solutions via an integrated structure that extends from planning and development to maintenance and service, capable of responding rapidly to customer needs.
SMC corporation was founded in 1959 and is headquartered in Tokyo, Japan. SMC Corporation manufactures and sells automatic control equipment and filtration equipment. SMC has production facilities in 30 countries, technical development centers in Japan, the United States, Europe, and China, and sales offices, globally. SMC product lines divided by them include filter replacements, condensation prevention, heat resistance, thermos-chilling, and others. SMC provides a video library as well as product selection guide to assist customers in finding solutions and optimizing product efficiency.
YAMAMOTO KEIKI MFG. Co., LTD, established in 1941 and based in Tokyo, Japan, is a manufacturer and distributor of Pressure Gauges and Thermometers. The company's product range includes Pressure gauges, Bath thermometer, Manometer, Measuring instrument for stopcock of water supply, and Precorder. These products are crucial for applications in temperature and pressure measurement. Serving sectors that require precise measurements like manufacturing, healthcare, and research, these instruments play a fundamental role in maintaining optimal operating conditions. Its services include the production and sales of instruments, ensuring consistent quality control, and offering different measurement tools.
Nagano Keiki Co Ltd is a company founded in the year 1896 and based in Tokyo, Japan as a manufacturer and supplier of pressure and temperature sensors. Their product portfolio includes digital pressure gauges, pressure and temperature sensors, and digital panel meters in different models. The company also provides effective solutions with calibration and maintenance. The products are used in multiple industries which include automobile, construction, machinery, semiconductors, marine, aeronautical, medical, gas, and energy.
Tarps America, founded in 1997 and headquartered in Apollo, Pennsylvania, USA, is a manufacturer of quality tarps and covers designed for various purposes. The company offers an extensive and diverse product portfolio, which includes agribon row covers, hay tarps, containment tarps, athletic field covers, fire-retardant tarps, and more. These products find applications across different industries, ranging from automotive to protect truck beds from damage and can transform flatbeds into enclosed vehicles, to agricultural farms, government agencies, athletic fields, and beyond.
TAKASHIMAKEIKI Co., established in 1965 and based in Suwa-shi, Nagano, Japan, is a manufacturer and supplier of pressure gauges and thermometers. The company's product range includes pressure gauges, thermometers, and related accessories. These products are pivotal for various applications that require accurate pressure and temperature measurements, ensuring operational efficiency and safety. Serving a diverse set of industries that prioritize precise measurements, the company offers calibration services, product customization, maintenance support, and consultation services to its clientele.
Sens4 A/S is a Danish developer, manufacturer, and distributor of vacuum, pressure, and temperature measuring equipment and solutions established in 2017 by Ole Wenzel and headquartered in Hellebæk, Denmark. The company's product portfolio comprises temperature transmitters, precision pressure transmitters, vacuum measurement transducer, used for temperature measurement and controlling to be used in a variety of industries including analytical instrumentation manufacturing, semiconductor equipment manufacturing, pharmaceutical industry, and space industry The company has various engineering tools, CAD, and simulation software and uses 3D printing to design its products and to deliver product performance.
HighVac Depot, established in 2018,is a manufacturer and supplier of vacuum products used in industrial or research processes and headquartered in Caryville, Tennessee, USA. The company offers vacuum gauges, vacuum valves, pumps, helium leak detectors, and hardware and fittings from various brands including Kluber Fabrication, Instrutech. Inc., HighVac Depot, Welch, and Stokes Vacuum. In addition to production, it also has service departments offering various services such as leak detector rentals, pump servicing, and fabrication.
Johnson Valves, based in Southampton, United Kingdom, is a supplier of engineering products for pressure safety, fluid control, and metering. Its product portfolio includes isolation valves, water meters, and pipe fittings, which it sells in the UK and worldwide. The company serves a range of markets, including the boiler, HVAC, and water industries, and offers complete valve and actuation services. Johnson Valves is ISO 9001 and ISO 14001 certified and has been a distributor of Asco Numatics products for over two decades. It is a BVAA member, SafeSupplier verified, JOSCAR accredited, and Cyber Essentials certified.
Tameson was founded in 2013, in Eindhoven, the Netherlands as an online-based supplier and distributor of industrial products. The company offers a wide range of products, including valves, tubes and hoses, fittings, electrical accessories, and hydraulics. There are also Office supplies such as memory cards, cables, etc. along with measuring and controlling devices like thermometers, gauges, levels, and more. Industries such as Home and Garden, Food and Beverage, Automotive, HVAC, and Industrial Automation, amongst others, benefit from the products distributed by Tameson.
Modus Gauges, established in 1990, is a supplier of pressure and temperature instrumentation located in Sudbury, Suffolk, UK. The company serves as the exclusive UK representative for Cewal S.p.A. and an authorized reseller of Nuova Fima S.p.A. products from Italy. It offers rapid production of special order instruments at competitive prices and provides testing and certification services in-house. Its calibration equipment meets standards and is traceable to national standards. Both its UK operation and manufacturing facilities are ISO 9001 certified.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | CKD |
14.7%
|
| 2 | NESSTECH INC. |
8.8%
|
| 3 | HighVac Depot |
5.9%
|
| 4 | Poolweb |
5.9%
|
| 5 | Modus Gauges Limited |
5.9%
|
| 6 | Cincinnati Test Systems |
5.9%
|
| 7 | The Fredericks Company |
5.9%
|
| 8 | HYODA INSTRUMENTS CORPORATION |
5.9%
|
| 9 | YAMAMOTO KEIKI MFG. Co., LTD |
5.9%
|
| 10 | SMC Corporation. |
5.9%
|
Derivation Method
The ranking is calculated based on the click share within the vacuum/pressure combined gauge page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
8 | 47.1% |
|
United States of America
|
4 | 23.5% |
|
Germany
|
1 | 5.9% |
|
Denmark
|
1 | 5.9% |
China
|
1 | 5.9% |
|
United Kingdom
|
1 | 5.9% |
|
Netherlands
|
1 | 5.9% |
61 products found - Page 2
61 products - Page 2
Atotech Co., Ltd.
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Atotech Co., Ltd.
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■Summary The CCMT-D series is a capacitance manometer whose ceramic diaphragm deforms due to changes in gas pressure and detects pressure from the ...
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■Summary The G-TRAN series is a vacuum gauge developed with the concepts of (1) cost reduction, (2) space saving, and (3) wiring reduction in order...
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■Summary Pirani vacuum gauge that can measure a wide range from atmospheric pressure to 5×10^-2Pa. Furthermore, this vacuum gauge removes the opera...
