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4 way reversing valve related introduction

4 way reversing valve related introduction

(Summary description)4 way reversing valve is one of the four major accessories of air conditioner, what is its function, what is it and what is its working principle? Let me introduce it to you today.

4 way reversing valve related introduction

(Summary description)4 way reversing valve is one of the four major accessories of air conditioner, what is its function, what is it and what is its working principle? Let me introduce it to you today.

Information

4 way reversing valve is one of the four major accessories of air conditioner, what is its function, what is it and what is its working principle? Let me introduce it to you today.

1. The electromagnetic 4 way reversing valve is mainly used in heat pump air conditioners. Since there are mainly 4 pipes connected to it in structure, it is often called 4 way reversing valve.

2. Its function is to change the function of the two air conditioners by changing the flow direction of the refrigerant in the system, and realize the switching of functions such as refrigeration, heating or defrosting.

4 way reversing valve

3. The electromagnetic four-way reversing valve consists of two parts, one part is an electromagnetic pilot valve, and the other part is a four-way reversing valve. The four-way reversing valve is controlled by an electromagnetic pilot valve, and three guiding capillaries are used between the two. connect.

4. The electromagnetic pilot valve is composed of valve bowl, spring, iron core and electromagnetic coil, etc. There are four valve holes connected to the pilot capillary on the valve body.

5. When the refrigeration is running, the coil is not energized, and the iron core and the valve bowl move to the left together due to the thrust of the spring. At this time, the capillary d and c are connected (high pressure), and the capillary a and b are connected (low pressure), thus pushing the four The slider of the reversing valve moves to the left, the 4 way reversing valve E communicates with S, and D communicates with C.

6. When the heating is running, the solenoid pilot valve coil is energized, the electromagnetic field attracts the armature to move to the right, the spring is compressed, and the iron core pushes the valve bowl to move to the right together, so that the capillary a and d are connected (high pressure), and the capillary b and c are connected (low pressure). ), thereby pushing the slider of the four-way reversing valve to move to the right, D is connected with E, and C is connected with S.

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