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 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 363-6006
BrandRS PRO
HK$625.37
單位
0bar 250 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 743-6582
製造零件編號ISE40A-01-T
BrandSMC
HK$1,225.92
單位
-0.1MPa 1 MPa Positive Pressure Air, Gas R 1/8 Reed 12 → 24V dc 1/8 in ISE40A - R -5°C +50°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
全新
RS庫存編號 202-3256
製造零件編號SDE5-D10-C3-Q6E-P-K
BrandFesto
HK$737.42
單位
0bar 10 bar - Air Cable - - - - - - - - -
RS庫存編號 366-3985
製造零件編號0880300
BrandNorgren
HK$1,272.43
單位
0.5bar 8 bar Positive Pressure Gas G 1/4 - - 1/4 in 18D Normally Closed, Normally Open G -10°C +80°C IP65
RS庫存編號 175-2151
製造零件編號SPTE-V1R-Q4-B-2.5K
BrandFesto
HK$411.97
單位
- - - - - - - - SPTE - - 0°C +50°C IP40
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 175-2192
製造零件編號SPTW-P16R-G14-VD-M12
BrandFesto
HK$1,213.63
單位
0bar +16 bar - - - Pressure Transmitter - - SPTW - - 0°C +80°C IP67
RS庫存編號 175-2190
製造零件編號SPTW-B2R-G14-VD-M12
BrandFesto
HK$1,443.80
單位
-1bar +1 bar - - - Pressure Transmitter - - SPTW - - 0°C +80°C IP67
全新
RS庫存編號 202-3281
製造零件編號SDE5-D10-O3-Q6E-P-K
BrandFesto
HK$737.42
單位
0bar 10 bar - Air Cable - - - - - - - - -
RS庫存編號 175-4525
製造零件編號PEV-W-KL-LED-GH
BrandFesto
HK$580.31
單位
0bar 8 bar Relative Pressure Air M5 Pressure Switch 10 → 30V M5 PEV SPDT Metric 0°C +60°C IP20
RS庫存編號 175-2155
製造零件編號SPTE-P10R-S4-B-2.5K
BrandFesto
HK$376.73
單位
- - - - - - - - SPTE - - 0°C +50°C IP40
RS庫存編號 135-3726
製造零件編號XMLA002A2C11
HK$1,482.57
單位
- - - - - - - - - - - - - -
全新
RS庫存編號 202-3240
製造零件編號SDE3-V1S-B-FQ4-2P-M8
BrandFesto
HK$1,540.25
單位
0bar -1 bar - Air M8 - - - - - - - - -
RS庫存編號 743-6623
製造零件編號ZSE30AF-C6H-P-L
BrandSMC
HK$851.56
單位
-100kPa 100 kPa Compound Pressure Air, Gas - - 12 → 24V dc - ZSE30A(F) - - 0°C +50°C IP40
RS庫存編號 136-6273
BrandRS PRO
HK$592.55
單位
1bar 16 bar Electro-Mechanical Compressed Air, Gas, Pneumatic M12 x 1 - 30V M12 x 1 - - NPT -10°C +85°C IP67
RS庫存編號 511-6661
製造零件編號SCPSD-600-04-16
BrandParker
HK$3,509.44
單位
0bar 600 bar Positive Pressure - G 1/4 - 1.5V dc 1/4 in SCPSD - G -20°C +85°C IP65, IP67
RS庫存編號 297-0018
BrandRS PRO
HK$1,346.76
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 753-1425
製造零件編號ISE40A-01-V-X501
BrandSMC
HK$2,491.24
單位
-0.100MPa 1 MPa Positive Pressure Air, Non Corrosive Gas, Non Flammable Gas R 1/8 Reed, Solid State 12 to 24V dc 1/8 in ISE40A - R -5°C +50°C IP65