FESTO Festo Vacuum Switch Application

Festo vacuum switch is a pressure protection automatic controller used in vacuum systems. When the vacuum pressure in the system exceeds the set point, the controller will automatically cut off the circuit and send a signal to ensure the normal operation of the system. When the pressure inside the system is higher or lower than the safe pressure, the pressure sensor inside the controller immediately acts, causing the contacts inside the controller to connect or disconnect, and the equipment stops working at this time; When the pressure in the system returns to the safe pressure range of the equipment, the pressure sensor in the controller immediately resets, causing the contacts in the controller to connect or disconnect, and the equipment works normally at this time.

FESTO Festo Vacuum Switch Application

Widely used in various industrial automation environments, involving oil pipelines, water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military industry, petrochemicals, oil wells, electricity, ships, machine tools, pipeline air supply, boiler negative pressure and many other industries.

Mainly used for pressure control of metallurgy, chemical industry, petroleum, steel, machinery, refrigeration equipment, freezing equipment, water pumps, low water level protection pressure control, gas, steam, water, oil and other liquid pressure equipment and other industrial equipment in industries such as power plants, cement, food, ships, etc. It is used for pressure monitoring, alarm, interlock protection and other industrial equipment supporting the actuator, achieving two position automatic control.

Selling German Festo FESTO vacuum switches. Main features:

1. Adopting the British style pipe thread quick connector or copper pipe welding installation structure, the installation is flexible, easy to use, and does not require special installation and fixation.

2. The plug-in wire type connection can be freely selected by users.

3. Sealed stainless steel sensor is safe and reliable.

4. Manufacturing can be carried out within the pressure range according to the pressure value selected by the user.

Technical parameters of Festo vacuum switch:

1. Pressure regulation range: -0.1 to 0 Mpa

2. Pressure difference: ≤ 0.02MPa

3. Environmental temperature -20~50 ℃

4. Medium temperature -25~120 ℃

5. Pressure controller contact load A.C. 220V, 16A

6. Instantaneous current: 96A, 220V D.C. 110V, 24A

7. Instantaneous current: 144A, 110V

8. Standard connection method for pressure controller: metric, M12 × 1.25

Festo vacuum switch function:

1. It can achieve the function of stopping at the upper limit and starting at the lower limit; (It can also be controlled in reverse)

2. Start delay can be set to prevent damage caused by frequent motor opening;

3. Switching between multiple pressure units such as KPA, BAR, and PSI;

4. One click reset function

5. It has the function of pipeline leakage protection

6. Low power consumption, not exceeding 0.5W

7. Strong shock resistance, anti-interference, fast response, and stable performance.

The current Festo vacuum switchgear can be divided into many categories, mainly including the following:

(1) Classified by installation and usage location. There are indoor and outdoor types, and in the outdoor type, there are two main categories: floor mounted and column mounted switches.

(2) Classified by the ability to interrupt current. There are vacuum circuit breakers, vacuum load switches, and vacuum contactors. Vacuum circuit breakers have the ability to interrupt the short-circuit current of the installation point line. Currently, small capacity column mounted vacuum circuit breakers generally have a rated short-circuit breaking current of up to 20kA. Vacuum load switches and vacuum contactors are only used to interrupt load currents, with a general rated value of 630A, and some can reach 800A or 1250A. Their ability to interrupt short-circuit currents is very small, only about 1000-2000A. Therefore, fuses need to be selected as backup protection when applied to interrupt short-circuit currents. The characteristic of a vacuum contactor is that it can be operated frequently for closing and opening. Therefore, the common form of application for vacuum load switches and vacuum contactors is their combination with current limiting fuses.

(3) Classify by purpose. There are distribution vacuum circuit breakers and generator vacuum circuit breakers. The former has multiple structural types and specifications, with a rated short-circuit breaking current of up to 63kA and a rated current of up to 3150A; the latter is a developing protection control switch installed at the outlet of 12-24kV generators, and there are still many key technical issues under research, with a high rated short-circuit breaking current of 80kA.

The above content is provided by Shanghai Weite Rui; For details, please click:FESTO Festo Vacuum Switch Application