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. 906-9626
Mfr. Part No.MS-111-LCD
MYR736.01
Each
units
- 6.89 kPa Differential Air, Gas, Non Combustible NPS 1/2 in Pressure Transmitter 10 → 36V dc 1/2 in MS - NPS -18°C +66°C IP65
RS Stock No. 906-9503
Mfr. Part No.ADPS-08-2-N
MYR133.66
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. 906-9461
Mfr. Part No.A3000-00
MYR1,947.84
Each
units
0psi 0.01 psi Differential Air, Gas, Non Combustible NPT 1/8 in Female Pressure Switch/Gauge 120V ac 1/8 in A3000 DPDT NPT -6.67°C +48.9°C -
RS Stock No. 906-9540
Mfr. Part No.DH3-005
MYR1,810.09
Each
units
0psi 0.09 psi Differential Air, Non Combustible NPT 1/8 in Female Pressure Transmitter 12 → 28V ac/dc 1/8 in DH3 SPDT NPT 0°C +60°C -
RS Stock No. 906-9623
Mfr. Part No.MS-321-LCD
MYR736.01
Each
units
- 6.89 kPa Differential Air, Gas, Non Combustible NPS 1/2 in Pressure Transmitter 10 → 36V dc 1/2 in MS - NPS -18°C +66°C IP65
RS Stock No. 906-9544
Mfr. Part No.DH3-006
MYR1,810.09
Each
units
0psi 0.18 psi Differential Air, Non Combustible NPT 1/8 in Female Pressure Transmitter 12 → 28V ac/dc 1/8 in DH3 SPDT NPT 0°C +60°C -
RS Stock No. 906-9617
Mfr. Part No.MS-111
MYR551.94
Each
units
- 6.89 kPa Differential Air, Gas, Non Combustible NPS 1/2 in Pressure Transmitter 10 → 36V dc 1/2 in MS - NPS -18°C +66°C IP65