How to buy pneumatic valve?

Pneumatic valve purchase should pay attention to the problem: First, the pneumatic valve is the pneumatic system control element used to control the flow of fluid in the system, the type of many styles, the user can choose according to their needs. Common types of reversing valve are the following: Press the outlet points: two, three, four and five links; by job location points: two and three. Divided by the control method: pneumatic and electric control, direct acting and pilot; according to the controlled medium points: fluid valve and gas valve; according to the function points: normally closed and normally open, the closure and in the vent and the middle of the gas supply; According to the structure of points: a stop valve and slide valve; Second, the purchase of pneumatic valve, you should note the following: 1. The valve thread interface: the nominal diameter of the valve and the gas port thread is not a A corresponding, therefore, the choice of directional valve should pay attention to the interface thread. 2. The installation of reversing valve size: the same type, the function of the valve due to different manufacturers and their installation dimensions vary. 3 for the action is simply crisp, not dragons with water. Imported pump valve 4. Solenoid valve, especially the AC solenoid valve should pay attention to its insulation properties. To ensure the operator's personal safety. 5. The valve should be no leakage, the smaller the better leakage. Otherwise, it will affect the system's normal work, and waste energy. 6. Note that the valve's date of manufacture, the valve to put too long, its grease will be aging, affecting the normal operation of the valve. More keyword search: Directional valve

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