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$120.35
單位
- - - - - - - - - - - - - -
RS庫存編號 289-5507
製造零件編號M/58024/VB
BrandNorgren
HK$670.50
單位
-1bar -0.2 bar Vacuum Air G 1/8 - 250V ac/dc 1/8 in M/58024 Normally Open G -20°C +80°C IP55
RS庫存編號 175-2188
製造零件編號SPTW-P10R-G14-A-M12
BrandFesto
HK$1,213.63
單位
0bar +10 bar - - - Pressure Transmitter - - SPTW - - 0°C +80°C IP67
RS庫存編號 873-2597
製造零件編號ISE80-02-R
BrandSMC
HK$2,520.01
單位
-0.1MPa +1 MPa Positive Pressure Non Corrosive Fluid R 1/4 Reed, Solid State 12 → 24V dc 1/4 in ISE80 - R 0°C +50°C IP65
RS庫存編號 317-061
BrandRS PRO
HK$119.10
單位
- - - - - - - - 6470 - - - - -
RS庫存編號 598-838
製造零件編號R901102754
HK$2,051.85
單位
- 200 bar Positive Pressure Oil G 1/4 - 250V ac/dc 1/4 in HED8 - G -30°C +80°C IP65
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 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 880-2289
BrandRS PRO
HK$993.04
單位
1bar 12 bar - Fluid 1/4 in BSP Male Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65
RS庫存編號 296-9995
BrandRS PRO
HK$1,346.76
單位
5bar 100 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 826-2571
製造零件編號ISE2-01-15L
BrandSMC
HK$1,009.39
單位
0MPa 1 MPa Positive Pressure Air, Non Corrosive Gas, Non Flammable Gas R 1/8 NPN Open Collector 12 → 24V dc 1/8 in ISE2 - R 0°C +60°C IP40
RS庫存編號 135-3758
製造零件編號XMLG250D21
HK$1,532.29
單位
- - - - - - - - - - - - - -
RS庫存編號 843-5287
製造零件編號ZSE30A-N01-P-L
BrandSMC
HK$818.86
單位
-101kPa 0 kPa Vacuum Air, Non Corrosive Gas, Non Flammable Gas NPT 1/8 PNP Open Collector 12 → 24V dc 1/8 ZSE30A - NPT 0°C +50°C IP40
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 - - -
全新
RS庫存編號 202-3288
製造零件編號SDE3-D2D-B-HQ4-2P-M8
BrandFesto
HK$1,619.32
單位
0bar 2 bar - Air M8 - - - - - - - - -
RS庫存編號 100-0678
製造零件編號PAC50-DCD
BrandSick
HK$1,321.96
單位
0bar 10 bar Positive Pressure Air G 1/4 Female, M12 4-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
全新
RS庫存編號 202-3310
製造零件編號SDE5-D10-NF-Q6E-V-M8
BrandFesto
HK$705.64
單位
0bar 10 bar - Air M8 - - - - - - - - -
RS庫存編號 847-7032
製造零件編號ZS-38-3L
BrandSMC
HK$116.56
單位
- - - - - - - - ZS - - - - -
RS庫存編號 740-6391
製造零件編號ISE30A-01-E-G
BrandSMC
HK$908.52
單位
-0.1MPa 1 MPa Positive Pressure Air, Gas R 1/8 - 12 → 24V dc 1/8 in ISE30A - R 0°C +50°C IP40
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