Making method of 4-Way Reversing Valve
“Technical Field”
[0001] The utility model relates to the field of refrigeration control, and particularly relates to an electromagnetic 4-Way Reversing Valve.

“Background Technology”

[0002] Electromagnetic 4-Way Reversing Valve as a refrigeration equipment (such as air conditioning system) important components, its main function is used to switch refrigeration equipment refrigerant flow, so that refrigeration equipment to achieve refrigeration, heating switching. The existing electromagnetic four-way reversing Valve, the valve body, set on the valve body connected compressor exhaust exhaust pipe, the evaporator tube connecting the indoor heat exchanger, the suction pipe connecting the suction port of the compressor, the condenser tube connecting the outdoor heat exchanger and four capillary tubes are made of copper material.

Copper material is a good plastic precious metals, with the gradual lack of copper in the past few years, the price of copper materials become very expensive, which will greatly increase the electromagnetic 4-Way Reversing Valve production costs.

[0003] In addition, in the refrigeration field, copper material welding widely used flame brazing, flame brazing product surface will produce oxide layer, oxide layer will seriously affect the appearance of the product. Therefore, in the existing process, the flame brazing is also required to pickling the product, pickling can remove part of the surface of the oxide layer, improve product appearance. But the pickling process is complex, the surface cleanliness of the product is difficult to guarantee, multi-process processing and processing, the product in the turnover process of collision and quality defects. Further, the pickling process is extremely easy to pollute the environment and is incompatible with the increasing environmental awareness in today’s society.

Therefore, how to improve the structure of electromagnetic 4-Way Reversing Valve, so that the electromagnetic 4-Way Reversing Valve processing more simple, environmental protection, low cost, is the focus of technical personnel in the field of concern.

“Utility model Content”
[0004] The utility model in order to overcome the existing electromagnetic four-way valve high production costs, complex production process problems, to provide a low production cost, the production process simple electromagnetic 4-Way Reversing Valve.

[0005] for the purpose of achieving the above, the utility model provides an electromagnetic four-way reversing Valve, comprising a stainless steel body, two stainless steel end caps, stainless steel seat and sliding assembly, exhaust pipe, evaporation tube, suction pipe and condensate pipe, stainless steel pilot valve and four stainless steel capillary. Two stainless steel end caps are set at both ends of the stainless steel valve body respectively. The stainless steel valve seat and sliding assembly are arranged in a stainless steel valve body. The exhaust pipe is connected to the side of the stainless steel valve body, evaporation tube, suction pipe and condensate pipe are connected in turn on the other side of the stainless steel valve body, exhaust pipe, evaporation tube, suction pipe and condenser pipe are copper steel composite pipe, each copper and steel composite pipe comprises a stainless steel body connected with a steel material made of the first tube and a second tube made of copper material. Four stainless steel capillary tubes are exhaust capillary, evaporation capillary, suction capillary and condensation capillary, four stainless steel capillary end is connected with the stainless steel pilot valve, the other end of the exhaust capillary is communicated with the first tube on the exhaust pipe, the other end of the evaporation capillary and the other end of the condensing capillary are connected with the stainless steel valve body respectively.
The other end of the suction capillary is communicated with the first tube body on the suction pipe.

4-Way Reversing Valve4-Way Reversing Valve used in reversible refrigeration systems
Making method of 4-Way Reversing Valve 'Technical Field' The utility model relates to the field of refrigeration control, and particularly relates to an electromagnetic 4-Way Reversing Valve. 'Background Technology' Electromagnetic 4-Way Reversing Valve as a refrigeration equipment (such as air conditioning system) important components, its main function is used to switch...