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. 511-2221
Mfr. Part No.0240458031006
BrandSuco
SGD176.12
Each
units
1bar 10 bar Positive Pressure Air, Fluid, Oil G 1/4 - 250V 1/4 in 024 Normally Closed, Normally Open G -30°C +100°C IP67
RS Stock No. 598-816
Mfr. Part No.R901102716
SGD357.72
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. 792-7911
Mfr. Part No.ZSE30A-01-P-L
BrandSMC
SGD137.53
Each
units
0kPa 101 kPa, 500 kPa Vacuum Air, Non Corrosive Gas, Non Flammable Gas R 1/8 PNP Open Collector 12 → 24V dc 1/8 in ZSE - R 0°C +50°C IP40
RS Stock No. 297-0052
BrandRS PRO
SGD69.35
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. 721-3815
Mfr. Part No.ISE30A-01-B-G
BrandSMC
SGD150.56
Each
units
- 1.5 MPa - - - - - M5 x 0.8, 1/8 in - - Metric, R - - -
RS Stock No. 847-7032
Mfr. Part No.ZS-38-3L
BrandSMC
SGD20.32
Each
units
- - - - - - - - ZS - - - - -
RS Stock No. 366-3985
Mfr. Part No.0880300
BrandNorgren
SGD221.83
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. 743-6623
Mfr. Part No.ZSE30AF-C6H-P-L
BrandSMC
SGD149.16
Each
units
-100kPa 100 kPa Compound Pressure Air, Gas - - 12 → 24V dc - ZSE30A(F) - - 0°C +50°C IP40
RS Stock No. 407-6089
Mfr. Part No.0882300
BrandNorgren
SGD206.89
Each
units
25bar 250 bar Positive Pressure Fluid, Oil G 1/4 - - 1/4 in 18D Normally Closed, Normally Open G -20°C +80°C IP65
RS Stock No. 363-6006
BrandRS PRO
SGD109.03
Each
units
0bar 250 bar Positive Pressure - G 1/4 Adjustable 250V ac/dc 1/4 in K3 Normally Closed, Normally Open G -20°C +80°C IP65
RS Stock No. 827-6551
Mfr. Part No.PS1100-R07L
BrandSMC
SGD222.11
Each
units
- - - - - - - - - - - - - -
RS Stock No. 847-7039
Mfr. Part No.ZS-38-4L
BrandSMC
SGD20.25
Each
units
- - - - - - - - ZS - - - - -
RS Stock No. 622-3631
Mfr. Part No.0882100
SGD207.20
Each
units
5bar 70 bar Positive Pressure Fluid, Oil G 1/4 - - 1/4 in 18D Normally Closed, Normally Open G -20°C +80°C IP65
RS Stock No. 511-6655
Mfr. Part No.SCPSD-060-04-16
BrandParker
SGD614.73
Each
units
0bar 60 bar Positive Pressure - G 1/4 - 1.5V dc 1/4 in SCPSD - G -20°C +85°C IP65, IP67
RS Stock No. 297-0002
BrandRS PRO
SGD234.79
Each
units
20bar 200 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. 407-6095
Mfr. Part No.0883300
BrandNorgren
SGD207.20
Each
units
25bar 250 bar Positive Pressure Fluid, Oil - - - - 18D Normally Closed, Normally Open - -20°C +80°C IP65
RS Stock No. 511-2215
Mfr. Part No.0240457031003
BrandSuco
SGD176.12
Each
units
0.3bar 1.5 bar Positive Pressure Air, Fluid, Oil G 1/4 - 250V 1/4 in 024 Normally Closed, Normally Open G -30°C +100°C IP67
RS Stock No. 366-3963
Mfr. Part No.0880100
BrandNorgren
SGD200.15
Each
units
-1bar 0 bar Positive Pressure Gas, Liquid G 1/4 - - 1/4 in 18D Normally Closed, Normally Open G 0°C +80°C IP65
RS Stock No. 721-4054
Mfr. Part No.ZSE30A-01-F-G
BrandSMC
SGD159.14
Each
units
- 500 kPa - - - - - M5 x 0.8, 1/8 in - - Metric, R - - -
RS Stock No. 847-7023
Mfr. Part No.ZS-33-J
BrandSMC
SGD38.78
Each
units
- - - - - - - - ZS - - - - -
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