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Changzhou Leili Pressure Controller Co., Ltd.

Pressure Switch, Pressure Sensor, Pressure Controller manufacturer / supplier in China, offering Household Air Conditioner Controller Series (20PS-2.4), Electronic Water Pump High and Low Pressure Control, Good Quality Auto Reset Digital Pressure Control and so on.

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Household Air Conditioner Controller Series (20PS-2.4)

FOB Price: US $1.5 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1.5/ Piece
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Production Capacity: 25000PCS/Day
Transport Package: Depend on Customer′s Requirements
Payment Terms: L/C, T/T, Paypal, Western Union

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Basic Info
  • Model NO.: 20PS
  • Place of Origin: Jiangsu China(Mainland)
  • Model No.: 20PS-0.05
  • Max Voltage: 240V
  • Color: Black, Green
  • Contacts: No/Nc
  • Trademark: LEILI
  • Origin: Changzhou, Jiangsu
  • Type: Mechanical
  • Brand Name: Leili
  • Max. Current: 6A
  • Wire Leading: Determined by Customer
  • Connection Method: Terminal or Wiring
  • Explosion-Proof Type: Intrinsically Safe
  • Specification: CE, ROHS, UL, VDE, ISO9001
  • HS Code: 8536200000
Product Description


LEILI pressure controller is used for control pressure transmission power switch on/off based on the principle of instability jumping when the dish mental diaphragm is under uniform pressure load.
It is mainly used for protection and control of high and low pressure on household, commercial and automotive air conditioner refrigerating systems, and can also be used to protect and control high and low pressure on air compressor, hydraulic machines, water pump and heat pump, etc. 


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.


With screw quick coupling or copper tube welded structure, it is flexibly installed and easily used with no special installation and fixing mode.
Insert and wire-type electrical connectors can be selected by users.
Unipolar single-throw or unipolar double-throw, normally open or normally closed switch contact structure optional for users, sealed stainless steel sensor safe and reliable. 
It can be manufactured according to any pressure value selected by users within the pressure range of 3-667PSI (0.02-4.6Mpa). 
Fitting structure: Copper tube welding, Copper flare fitting
Connection: terminal and wiring.


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 ≥100000 times
12 Over pressure Test Increase to 10mpa.No burst and leakage in 10mins
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