All-in-one hose joint service first
How to select quick coupling_News Center One Hose Coupling The service is the first 'power source' [力源wjnchlm]
How to select the quick connector: 1, the type of fluid, temperature (please select the type of fluid, the temperature of the body material and the speed of the sealing material Connector). According to the fluid, the suitable body material and sealing material are different. For example, the quick connector is air. It is recommended to be made of steel, or brass or stainless steel if it is water. 2. The pressure of the liquid (please select a quick coupling suitable for the pressure resistance of the fluid pressure). The pressure of the fluid is also the key to selecting a quick coupling. The quick couplings for hydraulic use are serialized between 5.0Mpa (51kgf/cm2) and 68.6Mpa (700kgf/cm2). Corresponding to the pressure characteristics, the structure of the quick couplings is also different.
Principle: It is a combination of direct-acting and pilot-operated principle. When there is no pressure difference between the inlet and the outlet, the electromagnetic force directly connects the pilot valve with the The closing parts of the main valve are lifted upwards one by one, and the valve opens. When the inlet and outlet reach the starting pressure difference, after power on, the electromagnetic force pilots the small valve, the pressure in the lower chamber of the main valve rises, and the pressure in the upper chamber drops, so that the pressure difference pushes the main valve upward; when the power is off, the pilot valve uses a spring The force or medium pressure pushes the closing piece and moves downward to close the valve.
Features: It can also be operated under zero pressure difference or vacuum and high pressure, but the power is large and requires horizontal installation.