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 100-0682
製造零件編號BEF-MA-CTRLPS-PAC5
BrandSick
HK$116.92
單位
- - - - - - - - - - - - - -
RS庫存編號 363-5996
BrandRS PRO
HK$622.41
單位
10bar 100 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庫存編號 407-6095
製造零件編號0883300
BrandNorgren
HK$1,157.96
單位
25bar 250 bar Positive Pressure Fluid, Oil - - - - 18D Normally Closed, Normally Open - -20°C +80°C IP65
RS庫存編號 721-4051
製造零件編號ZSE30AF-01-F-G
BrandSMC
HK$908.52
單位
- 500 kPa - - - - - M5 x 0.8, 1/8 in - - Metric, R - - -
RS庫存編號 136-6273
BrandRS PRO
HK$572.57
單位
1bar 16 bar Electro-Mechanical Compressed Air, Gas, Pneumatic M12 x 1 - 30V M12 x 1 - - NPT -10°C +85°C IP67
全新
RS庫存編號 196-1146
製造零件編號IS3000-02L5
BrandSMC
HK$1,025.14
單位
0.1MPa 0.7 MPa Positive Pressure Air 1/4 in Thread Pneumatic Pressure Switch 5V dc 1/4 in IS3000 - Rc -5°C +60°C -
RS庫存編號 743-6591
製造零件編號ZSE30AF-01-N-L
BrandSMC
HK$818.86
單位
-100kPa 100 kPa Compound Pressure Air, Gas R 1/8 - 12 24V dc 1/8 in ZSE30A(F) - R 0°C +50°C IP40
RS庫存編號 297-0002
BrandRS PRO
HK$1,340.40
單位
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
全新
RS庫存編號 196-4434
製造零件編號IS10E-20F02-A
BrandSMC
HK$701.39
單位
- 0.7 MPa - Air G 1/8 Pressure Switch 100V ac 1/8 in IS10E - G -5°C +60°C -
RS庫存編號 297-0018
BrandRS PRO
HK$1,340.40
單位
30bar 300 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 622-3631
製造零件編號0882100
HK$1,157.96
單位
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庫存編號 743-6601
製造零件編號ZSE30AF-01-F-L
BrandSMC
HK$867.97
單位
-100kPa 100 kPa Compound Pressure Air, Gas R 1/8 - 12 24V dc 1/8 in ZSE30A(F) - R 0°C +50°C IP40
RS庫存編號 826-8768
製造零件編號ZSE30A-N7H-E
BrandSMC
HK$819.44
單位
-101kPa 0 kPa Vacuum Air, Non Corrosive Gas, Non Flammable Gas Push In 1/4 PNP Open Collector 12 24V dc 1/4 in ZSE30A - Push-In 0°C +50°C IP40
RS庫存編號 175-4563
製造零件編號PEV-1/4-A-WD
BrandFesto
HK$194.82
單位
- - - - - Plug Socket - - PEV - - -40°C +90°C IP65
RS庫存編號 330-2551
製造零件編號34900030
BrandAsco
HK$1,074.79
單位
0.5bar 10bar - Air, Gas - - 24V dc - 349 Normally Closed, Normally Open - 0°C +60°C IP65
RS庫存編號 822-3955
製造零件編號0882400000000000
HK$983.27
單位
40bar 420 bar Vacuum Hydraulic, Pneumatic, Vacuum G 1/4 Electromechanical Relay - 1/4 in 18D Normally Closed, Normally Open G - - -
RS庫存編號 175-2150
製造零件編號SPTE-V1R-S6-B-2.5K
BrandFesto
HK$446.05
單位
- - - - - - - - SPTE - - 0°C +50°C IP40
全新
RS庫存編號 196-1150
製造零件編號ISE80-F02-T
BrandSMC
HK$2,756.70
單位
-0.1MPa 1 MPa Positive Pressure - R 1/4 (M5 Female Threaded) Digital Pressure Switch 12 → 24V dc 1/4 in ISE80 - R 0°C +50°C IP65
RS庫存編號 847-7029
製造零件編號ZS-28-B
BrandSMC
HK$34.78
單位
- - - - - - - - ZS - - - - -
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