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 297-0052
BrandRS PRO
HK$284.29
單位
1bar 12 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 296-9989
BrandRS PRO
HK$1,341.90
單位
2bar 40 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 297-0080
BrandRS PRO
HK$333.07
單位
20bar 200 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 363-5968
BrandRS PRO
HK$438.87
單位
1bar 10 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 880-2299
BrandRS PRO
HK$781.09
單位
0.2bar 2.5 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 317-061
BrandRS PRO
HK$97.97
單位
- - - - - - - - 6470 - - - - -
RS庫存編號 363-5980
BrandRS PRO
HK$486.33
單位
5bar 50 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 297-0018
BrandRS PRO
HK$1,050.53
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 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 363-5996
BrandRS PRO
HK$486.33
單位
10bar 100 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 136-6270
BrandRS PRO
HK$586.48
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 317-055
BrandRS PRO
HK$89.04
單位
- - - - - - - - 6470 - - - - -
RS庫存編號 136-6275
BrandRS PRO
HK$996.50
單位
0.2bar 2 bar Electro-Mechanical Gas, Liquid M12 x 1 - 30V M12 x 1 - - NPT 0°C +85°C IP67
RS庫存編號 317-730
BrandRS PRO
HK$166.85
單位
- - - - - - - - 6442 - - - - -
RS庫存編號 297-0046
BrandRS PRO
HK$327.32
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 136-6274
BrandRS PRO
HK$695.23
單位
1bar 30 bar Electro-Mechanical Gas, Liquid, Non Combustible, Pneumatic M12 x 1 - 30V M12 x 1 - - NPT -10°C +85°C IP67
RS庫存編號 297-0002
BrandRS PRO
HK$1,404.43
單位
20bar 200 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 297-0030
BrandRS PRO
HK$1,050.53
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
RS庫存編號 136-6277
BrandRS PRO
HK$1,334.22
單位
1bar 16 bar Electro-Mechanical Gas, Liquid M12 x 1 - 30V M12 x 1 - - NPT 0°C +85°C IP67
RS庫存編號 297-0068
BrandRS PRO
HK$308.40
單位
5bar 50 bar Positive Pressure - G 1/4 Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65