The pressure switch is mainly used in the refrigeration system, in the pipeline circulation system of high pressure and low pressure, to protect the abnormal high pressure of the system to prevent damage to the compressor.
After being filled, the refrigerant flows into the aluminum shell (that is, inside the switch) through the small hole under the aluminum shell. The inner cavity uses a rectangular ring and a diaphragm to separate the refrigerant from the electrical part and seal it at the same time.
The automobile air conditioner pressure switch is a part to protect the air conditioner refrigeration, it can adjust the pressure in time.When the refrigerant pressure in the air conditioning system is too high or too low, the pressure switch is turned off, so that the compressor does not work (the pressure switch and other switches control the relay to control the compressor) and protect the system components from damage.Generally divided into two-state pressure switch and three-state pressure switch. The pressure switch is generally connected to the compressor, the condenser electric fan or the water tank fan. It is controlled by the ECU on the car and controls the opening of the fan according to the pressure change in the air conditioner. Turn off, or the air volume, when the pressure is too high, the compressor will stop working to protect the system.
This is a pressure switch with a pagoda-shaped joint, and its joint is in a continuous cone shape.
So it can be better connected with water pipes and air pipes.
This pressure switch is mostly used in air compressors, small air pumps, and water pumps, air tank.
Air pipe or water pipe can be installed at its interface.
This pressure switch can be used in many fields, such as air conditioning refrigeration systems, car horns, ARB air pumps, air compressors, etc.In the refrigeration and air-conditioning system, the general air-conditioning pressure switch is installed in the air-conditioning condensing pipe, mainly to detect the pressure of the refrigerant in the air-conditioning pipe.When the pressure is abnormal, the corresponding protection circuit is activated to prevent damage to the system.Common air-conditioning pressure switches generally include high-pressure switches, low-pressure switches, two state pressure switches and three state pressure switches.
Electrical parameters : 5(2.5)A 125/250V
Pressure setting: 20pa~5000pa
Applicable pressure: Positive or negative pressure
Contact resistance: ≤50mΩ
Maximum breakage pressure: 10kpa
Operating temperature: -20℃~85℃
Connection size: Diameter 6mm
Insulation resistance: 500V-DC-lasted 1min,≥5MΩ
China 12V air compressor pressure switch for air bag air tank air suspension and train horn with 5A—35A.
Thread :G1/8, NPT1/8, G1/4,NPT1/4,Pagoda connector and Customizable.
Pressure value: Customize the parameters you want.
1. Product Name: Water Pressure Switch, Air Pressure Switch, Micro Pressure Switch, Vacuum Switch
2.Electrical parameters: 16 (4) A 250VAC T125 16A 25A 250VAC
3. Applicable medium: steam, air, water, liquid, engine oil, lubricating oil, etc
4.The highest pressure: positive pressure: 1.5MPA; Negative pressure: -101kpa
5. Working temperature: -35℃~160℃ (no frosting)
6. Interface size: conventional G1/8, according to customer requirements
7.Control mode: open and close mode
8. Product material: copper base + plastic shell, or copper base + aluminum shell
9. Mechanical life: 300,000 times
10.Electrical life: 6A 250VAC 100,000 times; 0~16A 250VAC 50,000 times; 16~25A 250VAC 10,000 times
The pressure switch is applicable to cold and hot water automatic suction pump, domestic booster pump, pipeline pump and other water pumps, It can automatically control the start and stop of the water pump, with simple operation, stable performance, machine protection and energy saving Power consumption, pressure control, kg pressure, optional (1kg = 10m)
Water flow sensor refers to the water flow sensing instrument that outputs pulse signal or current, voltage and other signals through the induction of water flow. The output of this signal is in a certain linear proportion to the water flow, with corresponding conversion formula and comparison curve.
Therefore, it can be used for water control management and flow calculation. It can be used as a water flow switch and a flowmeter for flow accumulation calculation. Water flow sensor is mainly used with control chip, single chip microcomputer and even PLC.
The product is made of stainless steel pressure sensor (stainless steel capsule and stainless steel diaphragm), which has the advantages of small volume, convenient installation and pressing
Accurate and stable performance, automatically measure and control the pressure of the system, prevent the pressure in the system from being too high or too low, and output the switch signal to ensure that the equipment works within the normal pressure range.
1.Product name: Refrigeration Pressure Switch, Air Compressor Pressure Switch, Steam Pressure Switch, Water Pump Pressure Switch
2. Use medium: refrigerant, gas, liquid, water, oil
3.Electrical parameters: 125V/250V AC 12A
4. Medium temperature: -10~120℃
5. Installation interface; 7/16-20, G1/4, G1/8, M12*1.25, φ6 copper tube, φ2.5mm capillary tube, or customized according to customer requirements
6. Working principle: The switch is normally closed. When the access pressure is greater than the normally closed pressure, the switch is disconnected. When the pressure drops to the reset pressure, the reset is turned on. Realize the control of electrical appliances