Bailu Automatic reset pressure control switch for air compressor and water/heat pump with cable
Automatic reset pressure control switch for air compressor and air onditioning
Application
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
NO. | Name | Features/setting value |
1 | Setting range of pressure range | 3-667PSI/0.02-4.6mpa |
2 | Tolerance range of pressure switch | 1.45-14.5PSI/0.01-0.1mpa |
3 | Contact form | Normal open, close |
4 | Contact capacity | AC240V,3A,AC120V,6A |
5 | Contact resistance | ≤ 50 MΩ |
6 | Insulation resistance | ≥100 MΩ(between terminal and housing) |
7 | Dielectric strength | No breakdown and flashing in 1min at AC1500V |
8 | Maximum burst pressure | No burst phenomenon in 1min at ≤5000PSI(34.5MPA) blast pressure |
9 | Gas tightness | No leakage (4.8mpa/1min) |
10 | Adaptive temperature | -30-80 degree |
11 | Life cycle | ≥10000 times |
12 | Over pressure Test | Increase to 10mpa.No burst and leakage in 10mins |
Common used pressure value reference
Code | Series | Opening pressure value | Closing pressure value | Pressure category | Contact form |
1 | BLPS-YKH | 2.5±0.06 | 2.0±0.05 | High pressure | Normal close |
2 | BLPS-YKH | 2.6±0.06 | 2.2±0.06 | High pressure | Normal close |
3 | BLPS-YKH | 2.8±0.06 | 2.2±0.06 | High pressure | Normal close |
4 | BLPS-YKH | 3.0±0.06 | 2.4±0.06 | High pressure | Normal close |
5 | BLPS-YKL | 0.05±0.03 | 0.15±0.04 | Low pressure | Normal open |
6 | BLPS-YKL | 0.15±0.04 | 0.3±0.05 | Low pressure | Normal open |
7 | BLPS-YKL | 0.3±0.05 | 0.45±0.05 | Low pressure | Normal open |
8 | BLPS-YKL | 0.02±0.01 | 0.15±0.04 | Low pressure | Normal open |
(Remark: The pressure value can be manufactured according to the requirement of customer)
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