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$2,042.15
單位
- 500 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 366-3963
製造零件編號0880100
BrandNorgren
HK$1,109.41
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 100-0676
製造零件編號PAC50-BCC
BrandSick
HK$1,372.47
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 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
全新
RS庫存編號 196-1148
製造零件編號ISE30A-C6L-B-G
BrandSMC
HK$993.91
單位
-0.1MPa 1 MPa Positive Pressure Air, Non-Corrosive Gas, Non-Flammable Gas Push In 6 mm Digital Pressure Switch 12 → 24V dc 6 mm ISE30A - Metric 0°C +50°C IP40
RS庫存編號 743-6620
製造零件編號ISE30A-01-F-L
BrandSMC
HK$867.97
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 135-3789
製造零件編號XMXA12L2135
HK$620.58
單位
- - - - - - - - - - - - - -
RS庫存編號 175-2156
製造零件編號SPTE-P10R-S6-B-2.5K
BrandFesto
HK$446.05
單位
- - - - - - - - SPTE - - 0°C +50°C IP40
全新
RS庫存編號 196-1149
製造零件編號ISE40A-01-Y
BrandSMC
HK$1,341.00
單位
-0.1MPa 1 MPa Positive Pressure Air, Non-Corrosive Gas, Non-Flammable Gas R 1/8 (M5 Female Threaded) Digital Pressure Switch 12 → 24V dc 1/8 in ISE40A - R -5°C +50°C IP65
RS庫存編號 847-7039
製造零件編號ZS-38-4L
BrandSMC
HK$116.01
單位
- - - - - - - - ZS - - - - -
RS庫存編號 136-6276
BrandRS PRO
HK$913.46
單位
0.5bar 8 bar Electro-Mechanical Gas, Liquid M12 x 1 - 30V M12 x 1 - - NPT 0°C +85°C IP67
RS庫存編號 184-6114
製造零件編號UT30
BrandBourdon
HK$476.30
單位
5bar 30 bar Differential Air, Oil, Water 1/4 BSP Female Pressure Switch 24 V dc, 220 V ac 1/4 in UT SPDT BSP -10°C +60°C IP32
RS庫存編號 175-2157
製造零件編號SPTE-P10R-Q4-B-2.5K
BrandFesto
HK$487.80
單位
- - - - - - - - SPTE - - 0°C +50°C IP40
全新
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
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 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 184-8549
製造零件編號IS10E-30F03-6L-A
BrandSMC
HK$943.63
單位
0.1MPa 0.7 MPa - Air, Inert Gas G 3/8 Reed 100V ac/dc 3/8 in IS10 Normally Open G -5°C +60°C IP40
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
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 873-2597
製造零件編號ISE80-02-R
BrandSMC
HK$2,658.60
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