Classification and Precautions of Reversing Valve in Valve Application
Classification:
Release Time：2017-08-18
The pneumatic directional valve is a control element in the pneumatic system, which is used to control the flow direction of the fluid in the system. There are many types of styles, and users can choose according to their needs. The common classification of valve in the use of valves is as follows: according to the outlet: two-way, three-way, four-way and five-way; according to the working position: two and three. According to the control mode, it is divided into pneumatic control and electric control, direct-acting type and pilot type. According to the controlled medium, it is divided into fluid valve and gas valve. According to the function, it is divided into normally closed and normally open, medium seal and medium discharge and intermediate gas supply. According to the structure, there are stop valves and slide valves;
Pneumatic reversing valveIt is a control element in a pneumatic system that controls the flow of fluid in the system,There are many types of styles, and users can choose according to their own needs.
The use of valves in the common classification of the following:
According to the air outlet:Two-way, three-way, four-way and five-way;
According to the working position:Two and three.
According to the control mode:Pneumatic and electronic control, direct-acting and pilot-acting;
According to the controlled medium:Fluid and gas valves;
By function:Normally closed and normally open, intermediate seal and intermediate discharge and intermediate gas supply;
By structure:There are stop valve and slide valve;
In the purchase of pneumatic valve,The following points need to be noted:
1. Thread interface of reversing valve: the nominal diameter of reversing valve does not correspond to the port thread one by one,Therefore, the selection of valve should pay attention to the interface thread.
2. Whether the reversing action is crisp and neat without sloppies.
3, the solenoid valve, especially the AC solenoid valve should pay attention to its insulation performance. To ensure the safety of the operator.
4. The reversing valve should have no external leakage, and the smaller the internal leakage, the better. Otherwise, it will affect the normal operation of the system and waste energy.
5. Pay attention to the factory date of the valve. If the reversing valve is placed for too long, the lubricating grease will age and affect the normal operation of the reversing valve.
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