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This section provides an overview for pirani vacuum gauge as well as their applications and principles. Also, please take a look at the list of 20 pirani vacuum gauge manufacturers and their company rankings. Here are the top-ranked pirani vacuum gauge companies as of February, 2025: 1.InstruTech, 2.Thulir Vacuum Technologies., 3.Torr Marketing India Pvt Ltd.
Table of Contents
A Pirani vacuum gauge is a sensor that measures vacuum levels using the piezoelectric effect. It is often used in various situations due to its small size, portability, and ease of operation. In this device, the current flowing to the measuring element changes according to the vacuum level, enabling the measurement of vacuum levels. Generally, a Pirani gauge consists of a controller and a measuring element, covering a range from about 0.5kPa to 2kPa.
Though Pirani gauges have limitations in accuracy at lower ranges, they can operate from atmospheric pressure to vacuum without concerns of breakage. Some models feature a separable measuring element and controller.
Pirani gauges are commonly used in fluid circuits where vacuum reach control is crucial, such as in chambers and quartz tubes, and in applications requiring surface cleanliness. They are particularly effective in the medium vacuum range, achievable with oil-rotary vacuum pumps. These gauges are also used in high vacuum to ultra-high vacuum pumping systems, medical instruments, analyzers, semiconductor manufacturing, and electron microscopes.
However, calibration is necessary for accurate absolute pressure measurements, as the indicated value varies with the type and composition of the gas.
Pirani gauges function by measuring the thermal energy dissipation when gas impinges on a heated platinum wire. The pressure is inferred from the current value required to maintain the wire's temperature. The platinum wire inside the gauge is heated to about 200 degrees Celsius. When air contacts the wire, it cools it down, requiring more power to maintain the temperature. Conversely, in a vacuum, less power is needed to keep the wire heated. The power change indicates the vacuum level.
Regular maintenance of the platinum wire is vital for accuracy. Over time, the wire wears out and requires more power to reach 200°C, necessitating periodic replacement and cleaning to avoid dust adhesion.
Vacuum levels are classified into low, medium, high, and ultra-high vacuum, with Pirani gauges effectively measuring from low to medium vacuum. According to JIS standards, vacuum levels are categorized as follows:
*Including some distributors, etc.
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Brooks Instrument, established in 1946 and currently a subsidiary of Illinois Tool Works Inc. (ITW), is an American manufacturer with its global headquarters in Hatfield, Pennsylvania, specializing in flow and pressure measurement and control technology. The company’s offerings encompass various mass flow controllers and meters, tailored for heat treating, cutting, and other thermal processes for mass flow sensors. Additionally, the company delivers pressure and vacuum controller technology for original equipment manufacturers (OEMs). It develops vaporization technology, utilized in industrial and semiconductor processes, for water vaporization or humidification, along with variable area (VA) flow meters (rotameters) for liquid or gas flow measurement.
The Fredericks Company, founded in 1935 and based in Pennsylvania, USA, is a manufacturer of tilt measurement and vacuum measurement products. The company's product portfolio includes electrolytic tilt sensors and vacuum sensors, electronic assemblies, gauges, inclinometers and controllers. Its tilt measurement products serve industries ranging from construction and RV levelling to aerospace applications. It also provides vacuum gauging and calibration services for industrial heating, national laboratories, cryogenics, industrial gas and LNG applications among others. The company is ISO 9001:2015 certified and registered with the U.S. State Department as ITAR compliant.
Instru Tech Inc., was established in 2002, is a manufacturer of vacuum measurement and control instrumentation located in Colorado, USA. The company has been designing and manufacturing vacuum measurement and control instrumentation for over three decades. Its vacuum gauges utilize the most recent advances in vacuum gauge designs offering measurement capabilities from 2.00E-11 Torr to 1,000 Torr. It offers a range of products including convection enhanced pirani, hot cathode Bayard-Alpert ionization, cold cathode inverted magnetron, capacitance diaphragm gauges and vacuum switches. It designs extremely solid vacuum measurement products with multi-functional features at very attractive prices.
SATO VAC INC., established in 1932 and based in Tokyo, Japan, is a manufacturer of vacuum equipment including vacuum pumps, measuring instruments, and parts & components. Its production line is segmented into vacuum pumps, gauges, and equipment used in space development, semiconductors, energy, medical, optics, and automobile industries. The company's vacuum equipment includes compact CVD systems, vacuum defoamers, heat treatment furnaces, dryers, and evaporation systems. The company's production process involves structural designing, prototype creation, design review, and performance testing.
SHINKO SEIKI CO., LTD., established in 1949, and located in Kobe, Japan, is a manufacturer of vacuum devices, electric furnaces and semiconductor manufacturing equipment. Its product line includes a vast array of vacuum pumps such as mechanical booster pumps, vacuum exhaust unit, oil sealed rotary vacuum pumps and water ring vacuum pumps. Its product range also inlcudes soldering equipments, optical inspection equipments, thin film forming equipments, and plasma processing equipments. The company holds several certification for its operation such as the ISO 14004, and the ISO 9001.
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.
Ulvac Inc., established in 1952 and headquartered in Kanagawa, Japan, is a manufacturer of vacuum equipment, components, peripheral devices, and materials for the solar cell and semiconductor industries, among others. The company operates businesses in six areas, including materials, components, electronic devices, semiconductors, and flat panel display production equipment. Some of its products include roll coaters, semiconductor production equipment, LED production equipment, leak detectors, and vacuum brazing furnaces. It is ISO9001 certified, and its net sales in the 2022 fiscal year were 227.5 billion Japanese Yen, with 34% of this amount coming from semiconductor and electronic device production equipment.
Thulir Vacuum Technologies, was founded in 2012, is a manufacturer of high vacuum pump and system located in Chennai, Tamil Nadu, India. The company has been continuously excelling in the area of manufacturing high vacuum pump and system. It provides a wide range of high vacuum pump, dosing pump system, and high vacuum system with precise and accurate engineered design and superior functionality. It also render dosing pump maintenance service. With state-of-the-art facilities outfitted with advanced machines and professional teams, it produces international standard products at an absolute affordable rates.
Alfa Technovac LLP, established in 2009 in Mumbai, India, is a manufacturer of vacuum measuring instruments and vacuum pumps. The company specializes in manufacturing a wide range of vacuum and ultra-high vacuum components and fittings, rotary valves, vacuum gauges, and customized vacuum systems. It has received ISO 9001 certification, verifying the precision and stability of the products. Its offerings benefit from superior design and construction, providing efficient vacuum solutions and precise control in various applications. These components find application in diverse industries such as semiconductor manufacturing, research and development, aerospace, and analytical instrumentation, supporting advancements in technology and scientific research.
Massflow Engineers, established in 2014 in Chennai, Tamil Nadu, is a manufacturer of advanced industrial pumps and accessories. The company specializes in the manufacturing of AODD (Air-Operated Double Diaphragm) pumps, Rotary Lobe pumps, Gear pumps, Screw pumps, and Centrifugal blowers and pumps. It is ISO 9001 certified, and the pumps and blowers offer benefits such as consistent fluid transfer, efficient material handling, and precise fluid control, making them suitable for a wide range of industries, including chemical processing, pharmaceuticals, wastewater treatment, and food and beverage, resulting in the efficiency and productivity of various industrial processes.
Torr Vacuum Solutions, founded in 1992 in Mumbai, Maharashtra, India, is a manufacturer of vacuum pumps and industrial blowers. The company offers dry vacuum pumps, industrial blowers, oil-sealed rotary vane pumps, and vacuum accessories. The company specializes in the production and sale of vacuum pumps and industrial blowers. The company has obtained ISO 9001 certification, and its products offer numerous advantages like effective vacuum generation, decreased energy usage, and improved system performance. As a result, they are essential for sectors like industrial applications, semiconductor manufacturing, and research institutions to fulfill the particular needs of experts and enterprises.
Ultrahigh Vacuum Solutions LLP, founded in 2015 and based in Bangalore, India, is a manufacturer of advanced vacuum solutions. The company manufactures a comprehensive range of products, including vacuum pumps, vacuum systems, vacuum valves, and components, and offers services such as helium leak testing. It holds ISO 9001 certification, verifying that the products and services meet stringent standards for precision, durability, and efficiency. Its products provide benefits such as improved process control, reduced contamination, and enhanced system performance, making them important in industries like semiconductor manufacturing, aerospace, research institutions, and automotive applications, supporting the advancements in vacuum processes and applications.
Thyracont, founded in 1970 and headquartered in Passau, Germany, is a manufacturer of vacuum instruments. The company specializes in manufacturing a wide range of modern technology, such as controllers, transmitters, vacuum gauges, and leak detectors. With features like enhanced process control, more durable goods, and decreased downtime, these vacuum instruments—which are certified ISO 9001—are essential for sectors including semiconductor production, R&D, and industrial applications. It provides simplified vacuum solutions that satisfy the specific requirements of experts and companies in an array of industries, leading to improvements in vacuum applications and processes.
ULVAC SHOWCASE, founded in 1952 and headquartered in Yokohama, Japan, is a manufacturer specializing in vacuum technology. The company offers a comprehensive range of products, including vacuum pumps, vacuum gauges, and process gas monitors, serving multiple industrial applications. It holds ISO 9001 certification for performance, precision, and stability. Its products provide various benefits, such as improved efficiency, reduced energy consumption, and enhanced process control, making them suitable for industries like semiconductor manufacturing, materials science, and research institutions. It offers premium vacuum solutions, meeting the specific demands of professionals and businesses and assisting advancements in vacuum processes and applications.
Teledyne Hastings Instruments is a manufacturer of vacuum as well as gas mass flow instruments that was originally established as Hastings-Raydist, Inc. in 1944 before becoming a subsidiary of Teledyne Technologies, Inc. in 1979. The company offers gas mass flow meters for measuring and controlling gas flow rates between 5-15,000slm, vacuum sensors for measuring atmosphere to ultra-high vacuum pressure, and single channel power supplies for operating flow meters or controllers. The company also provides custom manufacturing, calibration, and repair services for its clients.
Nano Vacuum Pty., Ltd., founded in 2018, is a supplier of nanofabrication and lithography tools located in Castle Hill, New South Wales, Australia. The company supplyies nanofabrication and lithography tools throughout Australia and New Zealand. Its product range includes thin film deposition (PVD/CVD), reactive ion etching (RIE), atomic layer deposition (ALD), glovebox integrated deposition tools, direct write lithography, and more. Its team members of PhD qualified mechanical and electrical engineers with expertise in bio-nano and surface science engineering, ensures to provide a sought-after service and advice to its Australian and New Zealand customers, equipping them with cutting-edge tools for their research.
Ranking as of February 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | InstruTech |
12.7%
|
| 2 | Thulir Vacuum Technologies. |
11.3%
|
| 3 | Torr Marketing India Pvt Ltd |
10.7%
|
| 4 | SATO VAC INC. |
8.0%
|
| 5 | Ultrahigh Vacuum Solutions LLP |
6.7%
|
| 6 | Thyracont Vacuum Instruments GmbH |
6.7%
|
| 7 | Brooks Instrument |
6.0%
|
| 8 | INFICON |
5.3%
|
| 9 | The Fredericks Company |
4.7%
|
| 10 | Alfa Technovac LLP |
4.7%
|
Derivation Method
The ranking is calculated based on the click share within the pirani vacuum gauge page as of February 2025. 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
|
7 | 36.8% |
|
India
|
5 | 26.3% |
|
United States of America
|
3 | 15.8% |
|
Germany
|
2 | 10.5% |
Switzerland
|
1 | 5.3% |
|
Australia
|
1 | 5.3% |
18 products found
18 products
Irie Co., Ltd.
80+ people viewing
Last viewed: 9 hours ago
Standard Response
4.5 Company Review
■Features ・Measurement range can be selected from Hi range and Lo range. Hi range 0.10~20.00kPa Lo range 0.1~133.3kPa ・High precision. ±0.25%FS±1...
Irie Co., Ltd.
70+ people viewing
Last viewed: 9 hours ago
Standard Response
4.5 Company Review
It compresses the residual gas in the capillary bulb and expands the minute pressure to measure the degree of vacuum, and with a simple rotation op...
Irie Co., Ltd.
80+ people viewing
Last viewed: 9 hours ago
Standard Response
4.5 Company Review
From analog to digital. A compact, lightweight, and inexpensive digital vacuum gauge that can measure a wide area and is ideal as a replacement for...
ULVAC Sales Co., Ltd.
80+ people viewing
Last viewed: 6 hours ago
The GP-G series is a constant temperature Pirani vacuum gauge that utilizes gas heat conduction. Platinum (Pt) is used for the filament material, s...
Yagyu Shokai Co., Ltd.
80+ people viewing
Last viewed: 15 hours ago
Very Fast Response
5.0 Company Review
■Features -Can be placed directly into a vacuum chamber for measurement. ・Measurement data can be saved to a computer via USB. - Capable of measur...
Yagyu Shokai Co., Ltd.
130+ people viewing
Last viewed: 15 hours ago
Very Fast Response
5.0 Company Review
■Features ・This is a constant temperature Pirani vacuum gauge that utilizes gas heat conduction. ・Measurement in low vacuum range (0.4 to 2,700Pa...
2 models listed
Yagyu Shokai Co., Ltd.
90+ people viewing
Last viewed: 12 hours ago
Very Fast Response
5.0 Company Review
■Features ・Vacuum measurement is possible just by connecting your smartphone. ・No power supply or display is required, and broadband measurement ...
Yagyu Shokai Co., Ltd.
120+ people viewing
Last viewed: 12 hours ago
Very Fast Response
5.0 Company Review
■Features It is possible to measure low vacuum areas (0.05 to 100,000Pa) including atmospheric pressure. ・Platinum (Pt), which has excellent durab...
Yagyu Shokai Co., Ltd.
60+ people viewing
Last viewed: 6 hours ago
Very Fast Response
5.0 Company Review
■Features - Pirani gauge and inverted magnetron gauge can be connected. ・Comes with a 2m (100V) power cable. specification ■Active digital contro...
Yagyu Shokai Co., Ltd.
60+ people viewing
Last viewed: 12 hours ago
Very Fast Response
5.0 Company Review
■Features Compact size with built-in sensor and integrated display. -Uses a ceramic sensor with excellent chemical resistance. ・Easy-to-read light...
Yagyu Shokai Co., Ltd.
60+ people viewing
Last viewed: 7 hours ago
Very Fast Response
5.0 Company Review
■Features - Suitable for checking the vacuum level in the system, checking the performance of vacuum pumps, inspecting piping for leaks, etc. - Equ...
Irie Co., Ltd.
90+ people viewing
Last viewed: 15 hours ago
Standard Response
4.5 Company Review
■Features -A basic vacuum manometer consisting of a wooden stand and a glass gauge tube. - The scale plate in the center is graduated on a mirror p...
Irie Co., Ltd.
120+ people viewing
Last viewed: 15 hours ago
Standard Response
4.5 Company Review
■Summary It compresses the residual gas in the capillary bulb and expands the minute pressure to measure the degree of vacuum, and with a simple ro...
Irie Co., Ltd.
70+ people viewing
Last viewed: 14 hours ago
Standard Response
4.5 Company Review
■The display unit is small and saves space.You can choose between an integrated type with the sensor and a separate type. -The display is small. (7...
Atotech Co., Ltd.
80+ people viewing
Last viewed: 8 hours ago
■Features ・Achieved low cost by integrating sensor + control circuit ・Can measure wide area from 1.0×10+5 to 5.0×10-7Pa ・Digital control realize...
ULVAC Sales Co., Ltd.
110+ people viewing
Last viewed: 9 hours ago
■Summary The sensor unit (SP1) is a Pirani gauge type measurement unit of the G-TRAN series. The sensor unit has a structure in which the probe and...
ULVAC Sales Co., Ltd.
130+ people viewing
Last viewed: 9 hours ago
■Summary Pirani vacuum gauge that can measure a wide range from atmospheric pressure to 5×10^-2Pa. Furthermore, this vacuum gauge removes the opera...
