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庫存編號 511-2221
製造零件編號0240458031006
BrandSuco
HK$1,005.46
單位
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庫存編號 181-6337
製造零件編號ISE70-F02-L2
BrandSMC
HK$1,771.63
單位
0MPa 1 MPa Digital Pressure - G 1/4 Pressure Switch 12 24V dc 6.35 mm ISE70 - G 0°C +50°C IP67
RS庫存編號 136-6270
BrandRS PRO
HK$586.48
單位
0.2bar 4 bar Electro-Mechanical Compressed Air, Gas, Pneumatic NPT 1/4 - - 1/4 - - NPT -10°C +85°C IP65
RS庫存編號 175-4608
製造零件編號VPEV-1/8-M12
BrandFesto
HK$1,339.17
單位
-1bar 1.6 bar Relative Pressure Air G 1/8 Vacuum Switch - 3.175 mm VPEV SPDT G -20°C +80°C IP65
RS庫存編號 297-0030
BrandRS PRO
HK$1,340.40
單位
50bar 400 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庫存編號 511-2215
製造零件編號0240457031003
BrandSuco
HK$1,005.46
單位
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庫存編號 175-2189
製造零件編號SPTW-P16R-G14-A-M12
BrandFesto
HK$1,436.98
單位
- +16 bar - - - Pressure Transmitter - - SPTW - - 0°C +80°C IP67
RS庫存編號 843-0402
製造零件編號ISE40A-01-R-M-X501
BrandSMC
HK$1,307.03
單位
-14.5psi 145 psi Compound Pressure, Vacuum Air, Non Corrosive Gas, Non Flammable Gas R 1/8 Analog Voltage/Auto-Shift Switching, NPN Open Collector 12 24V dc 1/8 ISE40A - R +23°F +122°F IP65
RS庫存編號 826-8787
製造零件編號ZSE40AF-01-T-X501
BrandSMC
HK$1,735.93
單位
-14.5psi +14.5 psi Compound Pressure Air, Non Corrosive Gas, Non Flammable Gas R 1/8 PNP Open Collector, Reed, Solid State 12 24V dc 1/8 in ZSE40A(F) - R +23°F +122°F IP65
RS庫存編號 700-8828
製造零件編號ISE80-F02-B
BrandSMC
HK$2,491.48
單位
-0.1MPa 1 MPa Positive Pressure Fluid G 1/4 Reed 12 24V dc 1/4 in ISE80 - G 0°C +50°C IP65
RS庫存編號 175-2188
製造零件編號SPTW-P10R-G14-A-M12
BrandFesto
HK$1,436.98
單位
- +10 bar - - - Pressure Transmitter - - SPTW - - 0°C +80°C IP67
RS庫存編號 826-2528
製造零件編號IS10M-20-L
BrandSMC
HK$777.03
單位
- 0.7 MPa Positive Pressure Air, Inert Gas Rc 1/8 Reed 100V ac/dc 1/8 in IS10 Normally Open Rc -5°C +60°C IP40
RS庫存編號 175-2149
製造零件編號SPTE-V1R-S4-B-2.5K
BrandFesto
HK$446.05
單位
- - - - - - - - SPTE - - 0°C +50°C IP40
RS庫存編號 2509543698
製造零件編號ZSE4-T1-25
BrandSMC
HK$1,512.18
單位
- - - - - - - - - - - - - -
RS庫存編號 2550074332
製造零件編號81505150
BrandCrouzet
HK$2,774.94
單位
- - - - - - - - - - - - - -
RS庫存編號 2508552824
製造零件編號76072-15-01
BrandHoneywell
HK$283.96
單位
- - - - - - - - - - - - - -
RS庫存編號 2508552672
製造零件編號76055-100-01
BrandHoneywell
HK$290.78
單位
- - - - - - - - - - - - - -
RS庫存編號 2509542550
製造零件編號PS1000-R07L
BrandSMC
HK$865.90
單位
- - - - - - - - - - - - - -