Vacuum Gauges

Vacuum Gauges are used to measure pressures lower than ambient atmospheric pressure, which is set as the zero points, in negative values for example -15 psig or -760 mmH equals total vacuum.


The inside of a tube which is bent into a circular arc (the so-called Bourdon tube) is connected to the vacuum system. Due to the effect of the external atmospheric pressure, the end of the tube bends more or less during the evacuation process.


Operating Temperature of Vacuum Gauge


It is the full-required range of ambient operating temperatures. Temperature and pressure in a system are directly related to each other. If the temperature of the closed operating environment increases, the pressure in the system will increase. In order to prevent equipment damage, it is important to know the extreme temperature ranges of the area.


The accuracy of Vacuum Gauge


It is the difference between the true value and the indication expressed as a percentage of the span. It includes the combined effects of method, observer, apparatus and environment.


What is Media?


Media is the term used to describe the material that surrounds the area of vacuum. Some vacuum gauges measure the pressures of liquids. Others measure the pressures of solids. Devices are also available that are rated for hazardous duty or for unlisted, specialized or proprietary materials.


Display type of Vacuum Gauge


  • Analogue - Analog meters are simple visual indicators using a dial

  • Digital meters - Digital meters are visual indicators with numerical valves

  • Cathode ray tube (CRT) - CRTs are commonly found in computer monitors

  • Liquid crystal display (LCD) - LCDs are semiconductor light sources using electrons which recombine with electron holes within the device and releasing energy in the form of photons

  • Multi-line video display - Video displays allow the user to watch and record live feeds of pressure changes in the system

Where is Vacuum Gauge used?


Vacuums are used in many industrial applications such as automotive, nautical, research and development, and manufacturing. They may be used to keep materials moving through the system or to keep the work area clean of pollutants. Gauges and instruments, such as sensors, are an important component to ensure the proper function and safety of the system and equipment.



Other typical applications include chemical and petroleum refineries, pharmaceutical, offshore drilling and production, paper mills, fertilizer.


...
Read more Read less

Filters

Viewing 1 - 16 of 16 products
Results per page
Description Price Best Accuracy Pressure Gauge Type Maximum Pressure Measurement Minimum Pressure Measurement Gauge Outside Diameter Connection Size Maximum Operating Temperature Minimum Operating Temperature Case Material
RS Stock No. 188-986
BrandRS PRO
£41.13
Each
Units
- Vacuum 0bar -1bar 100mm BSP G 3/8 +60°C -40°C Stainless Steel
RS Stock No. 257-8381
BrandRS PRO
£101.20
Each
Units
- Vacuum 0bar -1bar 100mm BSP G 1/2 +60°C -20°C Stainless Steel
RS Stock No. 892-3923
Mfr. Part No.529428
BrandAmetek
£144.28
Each
Units
2 % - 0.15bar 0bar 63.5mm 1/4 NPT - - Steel
RS Stock No. 892-3639
Mfr. Part No.271950
BrandAmetek
£144.28
Each
Units
2 % - 0.4bar 0bar 63.5mm 1/4 NPT - - Steel
RS Stock No. 892-1598
Mfr. Part No.551368
BrandAmetek
£377.85
Each
Units
1 % - - - 80.77mm NPT 1/2 - - Steel
New
RS Stock No. 192-6083
Mfr. Part No.4253256
BrandWIKA
£95.25
Each
Units
- - - - - - - - -
RS Stock No. 879-6774
Mfr. Part No.4253256
BrandWIKA
£11.25
Each
Units
±3/2/3 % Back Entry 5000psi 30inH2O 50mm 1/4 NPT +60°C -20°C Black ABS Plastic
New
RS Stock No. 192-6081
Mfr. Part No.4253256
BrandWIKA
£67.25
Each
Units
- - - - - - - - -
RS Stock No. 2508676901
Mfr. Part No.GZ46-K-02-C
BrandSMC
£18.58
Each
Units
- - - - - - - - -
RS Stock No. 2550255128
Mfr. Part No.GZ46-C-02M-C
BrandSMC
£13.85
Each
Units
- - - - - - - - -
RS Stock No. 2508676894
Mfr. Part No.GZ46-K-01-C
BrandSMC
£18.58
Each
Units
- - - - - - - - -
RS Stock No. 2508676872
Mfr. Part No.GZ46-C-01
BrandSMC
£11.75
Each
Units
- - - - - - - - -
RS Stock No. 2550255129
Mfr. Part No.GZ46-K1K-01-C
BrandSMC
£16.87
Each
Units
- - - - - - - - -
RS Stock No. 2508676917
Mfr. Part No.GZ46-K1K-01
BrandSMC
£10.66
Each
Units
- - - - - - - - -
RS Stock No. 2509542831
Mfr. Part No.GZ43-K-01
BrandSMC
£14.54
Each
Units
- - - - - - - - -
RS Stock No. 2509542825
Mfr. Part No.GZ33-K-01
BrandSMC
£14.96
Each
Units
- - - - - - - - -
Related Products
Professional range of Ametek ROTRON® reliable and rugged ...
Description:
Professional range of Ametek ROTRON® reliable and rugged pressure and vacuum gauges. Steel case Clear Plastic or Glass lens1/2" or 1/4" NPT connection available.
Wika 232.53 series of pressure gauges are a ...
Description:
Wika 232.53 series of pressure gauges are a ruggedly constructed stainless steel gauge that provides resistance to the most corrosive media and environments. This pressure gauge is field liquid-fillable and features 316 stainless steel wetted parts and a 304 stainless steel case and crimp ring. 316 stainless steel wetted parts304 ...
Wika's 611.10 premium range of pressure gauges are ...
Description:
Wika's 611.10 premium range of pressure gauges are particularly suited to gaseous media.Capsule pressure gauges consist of two circular, corrugated diaphragms joined together around the edge with a pressure-tight seal. Overpressure protection is possible in certain cases. These pressure measuring instruments are used mainly within medical, vacuum, environmental and laboratory ...
Professional range of Ametek ROTRON® reliable and rugged ...
Description:
Professional range of Ametek ROTRON® reliable and rugged pressure and vacuum gauges. Steel case Clear Plastic or Glass lens1/2" or 1/4" NPT connection available.