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 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 366-3963
製造零件編號0880100
BrandNorgren
HK$1,065.38
單位
-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庫存編號 175-2149
製造零件編號SPTE-V1R-S4-B-2.5K
BrandFesto
HK$376.73
單位
- - - - - - - - SPTE - - 0°C +50°C IP40
RS庫存編號 826-2663
製造零件編號ISE80-N02-T-C
BrandSMC
HK$2,132.71
單位
-0.1MPa 1 MPa Positive Pressure Non Corrosive Fluid NPT 1/4 PNP Open Collector, Reed, Solid State 12 → 24V dc 1/4 in ISE80 - NPT 0°C +50°C IP65
RS庫存編號 100-0676
製造零件編號PAC50-BCC
BrandSick
HK$1,386.44
單位
-1bar 1 bar Negative Pressure, Positive Pressure Air G 1/4 Female, M12 5-Pin, 4 mm Pneumatic Hose - 17 → 30V dc M12, 1/4 in PAC50 Normally Closed, Normally Open G, Metric 0°C +60°C IP65, IP67
RS庫存編號 196-1238
製造零件編號ZSE40AF-C6-T
BrandSMC
HK$1,911.85
單位
-100kPa 100 kPa Compound Pressure Air, Non-Corrosive Gas, Non-Flammable Gas Push In 6 mm Digital Pressure Switch 12 → 24V dc 6 mm ZSE40A - Metric -5°C +50°C IP65
全新
RS庫存編號 202-3275
製造零件編號SDE3-D10D-B-FQ4-2P-M8
BrandFesto
HK$1,760.34
單位
0bar 10 bar - Air M8 - - - - - - - - -
全新
RS庫存編號 202-3262
製造零件編號SDE3-D10Z-B-HQ4-2P-M8
BrandFesto
HK$1,545.41
單位
0bar 10 bar - Air M8 - - - - - - - - -
RS庫存編號 844-4669
製造零件編號PSE543-N01
BrandSMC
HK$631.79
單位
-100kPa +100 (Operating) kPa, 500 (Proof) kPa Compound Pressure Air, Non Corrosive Gas, Non Flammable Gas NPT 1/8 Analog Output 12 → 24V dc 1/8 PSE540 - NPT 0°C +50°C IP40
RS庫存編號 826-8771
製造零件編號ZSE40A-01-R
BrandSMC
HK$1,627.67
單位
-14.69psi 0 psi Vacuum Air, Non Corrosive Gas, Non Flammable Gas R 1/8 NPN Open Collector, Reed, Solid State 12 → 24V dc 1/8 in ZSE40A - R +23°F +122°F IP65
全新
RS庫存編號 202-3253
製造零件編號SDE3-D6M-B-HQ4-2P-M12
BrandFesto
HK$1,582.47
單位
0bar 6 bar - Air M12 - - - - - - - - -
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 100-0675
製造零件編號PAC50-BGD
BrandSick
HK$1,321.96
單位
-1bar 1 bar Negative Pressure, Positive Pressure Air G 1/4 Female, M12 4-Pin - 17 → 30V dc M12, 1/4 in PAC50 Normally Closed, Normally Open G, Metric 0°C +60°C IP65, IP67
RS庫存編號 297-0046
BrandRS PRO
HK$355.36
單位
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庫存編號 721-4045
製造零件編號ZSE30A-01-B-G
BrandSMC
HK$859.53
單位
- 500 kPa - - - - - M5 x 0.8, 1/8 in - - Metric, R - - -
RS庫存編號 826-8730
製造零件編號ZSE2-T1-15
BrandSMC
HK$982.24
單位
-101kPa 0 kPa Vacuum Air, Non Corrosive Gas, Non Flammable Gas NPTF 1/8 NPN Open Collector 12 → 24V dc 1/8 in ZSE2 - NPTF 0°C +60°C IP40
RS庫存編號 175-2157
製造零件編號SPTE-P10R-Q4-B-2.5K
BrandFesto
HK$411.97
單位
- - - - - - - - SPTE - - 0°C +50°C IP40
RS庫存編號 196-1237
製造零件編號ZSE30A-01-P
BrandSMC
HK$806.86
單位
0kPa 101 kPa Vacuum Air, Non-Corrosive Gas, Non-Flammable Gas R 1/8 (M5 Female Threaded) Digital Pressure Switch 12 → 24V dc 1/8 in ZSE30A - R 0°C +50°C IP40
RS庫存編號 297-0030
BrandRS PRO
HK$1,346.76
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
全新
RS庫存編號 202-3307
製造零件編號SDE3-D10D-B-HQ4-2P-M12
BrandFesto
HK$1,656.37
單位
0bar 10 bar - Air M12 - - - - - - - - -