Pressure & Vacuum Switches

Pressure and vacuum switches are used in pneumatic systems to allow pressure or vacuum to flow from one place to another, ensuring that the overall system remains stable. They form part of the control system, ensuring that optimal conditions are maintained.

How do pressure and vacuum switches work?

Pressure and vacuum switches work in different ways. Pressure switches are controlled by the level of fluid pressure on the input. When the pressure reaches a certain level, an electrical contact will be closed, ensuring that the pressure stays within given bounds. Vacuum switches regulate the flow of vacuum between two spaces, ensuring it is present where it is needed.

Types of pressure and vacuum switches

Different pressure and vacuum switches operate under different types of pressure, such as negative pressure, electro-mechanical pressure, relative pressure and compound pressure. This is determined by the conditions in which they operate, and of course will impact which one you choose for your project. These switches also have different types of connection, different maximum and minimum pressure settings, and varying voltage drops.


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Description Price Minimum Operating Pressure Maximum Operating Pressure Pressure Type Suitable Media Connection Type Voltage Rating Connection Thread Size Manufacturer Series Contact Operation Connection Thread Standard Minimum Operating Temperature Maximum Operating Temperature IP Rating
RS Stock No. 297-0052
BrandRS PRO
$105.46
Each
units
1bar 12 bar Positive Pressure - G 1/4 Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65
RS Stock No. 297-0074
BrandRS PRO
$56.08
Each
units
10bar 100 bar Positive Pressure - G 1/4 Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65
RS Stock No. 598-816
Mfr. Part No.R901102716
$586.16
Each
units
- 500 bar Positive Pressure Oil G 1/4 - 250V ac/dc 1/4 in HED8 - G -30°C +80°C IP65
RS Stock No. 598-822
Mfr. Part No.R901094159
$330.69
Each
units
- 350 bar Positive Pressure Oil G 1/4 - 250V ac/dc 1/4 in HED8 - G -30°C +80°C IP65
RS Stock No. 297-0046
BrandRS PRO
$61.69
Each
units
0.2bar 2.5 bar Positive Pressure - G 1/4 Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65
RS Stock No. 906-9503
Mfr. Part No.ADPS-08-2-N
$52.48
Each
units
- 10 kPa Differential Air, Gas, Non Combustible 7.94 mm Tube Pressure Switch 250V ac 7.94 mm ADPS SPDT - -20°C +85°C IP54
RS Stock No. 296-9995
BrandRS PRO
$201.70
Each
units
5bar 100 bar Positive Pressure Oil G 1/4 Adjustable 250V ac/dc 1/4 in K5 Normally Closed, Normally Open G -20°C +80°C IP65
RS Stock No. 366-3985
Mfr. Part No.0880300
BrandNorgren
$285.02
Each
units
0.5bar 8 bar Positive Pressure Gas G 1/4 - - 1/4 in 18D Normally Closed, Normally Open G -10°C +80°C IP65
RS Stock No. 743-6605
Mfr. Part No.ISE30A-01-P
BrandSMC
$164.71
Each
units
-0.1MPa 1 MPa Positive Pressure Air, Gas R 1/8 - 12 → 24V dc 1/8 in ISE30A - R 0°C +50°C IP40
RS Stock No. 743-6582
Mfr. Part No.ISE40A-01-T
BrandSMC
$192.71
Each
units
-0.1MPa 1 MPa Positive Pressure Air, Gas R 1/8 Reed 12 → 24V dc 1/8 in ISE40A - R -5°C +50°C IP65
RS Stock No. 847-7035
Mfr. Part No.ZS-38-4G
BrandSMC
$27.95
Each
units
- - - - - - - - ZS - - - - -
RS Stock No. 723-012
Mfr. Part No.81513552
BrandCrouzet
$111.29
Each
units
2bar 8 bar Positive Pressure Air, Gas, Liquid Push In Adjustable 220 → 230V 4 mm 81 Normally Closed, Normally Open - -10°C +70°C IP20
RS Stock No. 289-5513
Mfr. Part No.M/58024/VF
$160.80
Each
units
-1bar -0.2 bar Vacuum Air G 1/8 - 250V ac/dc 1/8 in M/58024 Normally Closed G -20°C +80°C IP55
RS Stock No. 297-0068
BrandRS PRO
$58.64
Each
units
5bar 50 bar Positive Pressure - G 1/4 Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65
RS Stock No. 740-6405
Mfr. Part No.IS10-01S-6L
BrandSMC
$150.49
Each
units
- 0.7 MPa Positive Pressure Air, Gas Rc 1/8 Reed 24 V, 48 V, 100 V 1/8 in IS10 Normally Open Rc -5°C +60°C IP40
RS Stock No. 847-7032
Mfr. Part No.ZS-38-3L
BrandSMC
$19.50
Each
units
- - - - - - - - ZS - - - - -
RS Stock No. 844-4650
Mfr. Part No.PSE530-M5
BrandSMC
$68.44
Each
units
0MPa 1 (Operating) MPa, 1.5 (Proof) MPa Positive Pressure Air, Non Corrosive Gas, Non Flammable Gas M5 x 0.8 Male Analog Output 12 → 24V dc M5 x 0.8 PSE530 - Metric 0°C +50°C IP40
RS Stock No. 317-061
BrandRS PRO
$17.93
Each
units
- - - - - - - - 6470 - - - - -
RS Stock No. 317-730
BrandRS PRO
$29.99
Each
units
- - - - - - - - 6442 - - - - -
RS Stock No. 363-5968
BrandRS PRO
$110.39
Each
units
1bar 10 bar Positive Pressure - G 1/4 Adjustable 250V ac/dc 1/4 in K3 Normally Closed, Normally Open G -20°C +80°C IP65
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