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Quick Details

  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: Bailu
  • Model Number: BLPS-YKHL
  • Max. Current: 6A
  • Max. Voltage: AC240v
  • Max. Working Pressure: 4.5mpa, 45bar,667PSI
  • Electrical connection: terminal(socket)
  • Thread size: 1/2,1/4,1/8,7/16-20 In BSP or NPT
  • Machine connection: Thread
  • Product name: Bailu pressure switch
  • Color: Silver,Black

Packaging & Delivery

Packaging Details according to customers requirements, usually carton
Delivery Time Usually 7-10 days

                                 BLPS-YKHL Micro pressure switches



It is mainly used for high or low pressure protection and controls on household, commercial and automotive air conditioning refrigerating systems, and can also be used to protect and control high or low pressure on air compressor, hydraulic machines, various equipment and tools.


Operation/working principles

when the medium (liquid or gas) pressure within the pressure system is above or below the rated security pressure, the dish metal diaphragm within the system jumps instantaneously, thus to push the switch contact to be connected or disconnected through a connecting rod; when the pressure drops to the rated recovery value, the dish metal diaphragm is instantaneously reset and the switch is automatically reset.


Technical specialist

3.1. Electrical connection method: Terminal(socket) or Wiring.


3.2. Pressure Range: 3-667PSI or 0.02-4.6mpa or 0.3-46bar.


3.3. Service time: Bigger than 30000 times


3.4. Manufacture setting (contact form): Normal open or Normal close.


3.5. Machine connection method: Copper tube welding(70mm,55.4mm), thread(internal or external).



Technical form




Features/setting value


Setting range of pressure range



Tolerance range of pressure switch



Contact form

Normal open, close


Contact capacity



Contact resistance

≤ 50 MΩ


Insulation resistance

≥100 MΩ(between terminal and housing)


Dielectric strength

No breakdown and flashing in 1min at AC1500V


Maximum burst pressure

No burst phenomenon in 1min at ≤5000PSI(34.5MPA) blast pressure


Gas tightness

No leakage (4.8mpa/1min)


Adaptive temperature

-30-80 degree


Life cycle

≥30000 times,


Over pressure Test

Increase to 10mpa.No burst and leakage in 10mins


(Remark: The pressure value can be manufactured according to the requirement of customer)





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China (Mainland) | Manufacturer
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