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 598-816
製造零件編號R901102716
HK$2,051.85
單位
- 500 bar Positive Pressure Oil G 1/4 - 250V ac/dc 1/4 in HED8 - G -30°C +80°C IP65
全新
RS庫存編號 202-3242
製造零件編號SDE3-V1Z-B-HQ4-2P-M8
BrandFesto
HK$1,545.41
單位
0bar -1 bar - Air M8 - - - - - - - - -
RS庫存編號 136-6270
BrandRS PRO
HK$604.39
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 100-0680
製造零件編號PAC50-DCC
BrandSick
HK$1,386.44
單位
0bar 10 bar 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 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 743-6627
製造零件編號ISE30A-01-P-GB
BrandSMC
HK$883.68
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 721-3818
製造零件編號ISE30A-01-F-G
BrandSMC
HK$891.11
單位
- 1.5 MPa - - - - - M5 x 0.8, 1/8 in - - Metric, R - - -
RS庫存編號 136-6271
BrandRS PRO
HK$592.55
單位
0.5bar 8 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 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 227-3632
製造零件編號ZSM1-121L
BrandSMC
HK$739.94
單位
-80kPa -27 kPa Vacuum Air, Gas R 1/8 Reed 100V ac/dc 1/8 in ZSM1 - R -5°C +60°C -
RS庫存編號 289-5513
製造零件編號M/58024/VF
HK$742.54
單位
-1bar -0.2 bar Vacuum Air G 1/8 - 250V ac/dc 1/8 in M/58024 Normally Closed G -20°C +80°C IP55
RS庫存編號 844-4666
製造零件編號PSE540-R06
BrandSMC
HK$571.48
單位
0MPa 1 (Operating) MPa, 1.5 (Proof) MPa Positive Pressure Air, Non Corrosive Gas, Non Flammable Gas Push In 6 mm Analog Output 12 → 24V dc - PSE540 - - 0°C +50°C IP40
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 740-6395
製造零件編號ZSE30AF-01-E-G
BrandSMC
HK$908.52
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 100-0682
製造零件編號BEF-MA-CTRLPS-PAC5
BrandSick
HK$120.35
單位
- - - - - - - - - - - - - -
RS庫存編號 184-8550
製造零件編號IS10E-40F04-6L-A
BrandSMC
HK$913.42
單位
0.1MPa 0.7 MPa - Air, Inert Gas G 1/2 Reed 100V ac/dc 1/2 in IS10 Normally Open G -5°C +60°C IP40
RS庫存編號 843-0355
製造零件編號IS10-01-L
BrandSMC
HK$677.32
單位
- 0.7 (Operating) MPa, 1 (Proof) MPa - Air, Inlet Gas R 1/8 Reed 100V ac/dc 1/8 IS10 - Rc -5°C +60°C IP40
RS庫存編號 297-0074
BrandRS PRO
HK$383.50
單位
10bar 100 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 175-2191
製造零件編號SPTW-P10R-G14-VD-M12
BrandFesto
HK$1,443.80
單位
0bar +10 bar - - - Pressure Transmitter - - SPTW - - 0°C +80°C IP67
RS庫存編號 721-4054
製造零件編號ZSE30A-01-F-G
BrandSMC
HK$908.52
單位
- 500 kPa - - - - - M5 x 0.8, 1/8 in - - Metric, R - - -