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Quick Joint Introduction According to Structure Classification

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  1. Quick joints can be divided into two types: open and close at both ends, open at both ends, and single open and close.
    1. Open and close at both ends
    When not linked: When the ferrule of the mother body moves to the other end, the stainless steel ball rolls outward automatically, the child body is disconnected under the action of the valve spring force of the mother body and the child body, and the valves of the child body and the mother body are closed separately , Instantly block fluid flow.
    When linking: When the child body is inserted into the mother body, the ferrule returns to its original position under the action of the spring, the steel ball rolls to lock the child body tightly connected, and at the same time, the valves of the mother body and the child body push each other to open, fluid flow, O-ring Can completely block fluid leakage.
    2. Open at both ends
    No link: When the ferrule of the mother body is pushed to the other end, the steel ball automatically rolls outward, so the child body is removed; because neither the child body nor the mother body has a valve, the fluid flows out.
    When linking: When the daughter body is inserted into the mother body, the ferrule is pushed to the previous position by the force of its spring to cause the steel ball to lock, the fluid flows, and the O-ring in it to prevent liquid leakage.
    3. One-way open and close
    No link: When the ferrule of the mother body is moved to the other end, the stainless steel ball rolls outward automatically, the child body is opened by the reaction force of the valve spring, and the valve can automatically close to block the fluid flow.
    When linking: when the daughter body is inserted into the side of the mother body with the ferrule, the valve is opened to cause fluid flow, the gasket is pushed back to the original position by the force of the spring, the stainless steel ball will lock to ensure the child / mother body connection, the gasket inside Completely block fluid leakage.
    Second, the introduction of related functions of the quick connector
    Exchange function: Air pressure, hydraulic tools, cylinders, hydraulic cylinders, metal mold related machinery attachments.
    Maintenance function: maintenance of the cooling device of the computer and the cylinder of the die casting machine.
    Test function: test for vacuum, pressure resistance, leakage, operation, etc.
    Conveying function: conveying, carrying and conducting functions of solids such as bolts and nuts.
    Filling function: inert gas, nitrogen, LPG, carbonic acid.
    Connection function: fishing rod, compact laser record fixing parts, connection for mobile work and fluid transportation.
    3. Why use quick connectors
    1. Time-saving and labor-saving: When dismantling and connecting the oil circuit through the quick connector, the action is simple, saving time and manpower.
    2. Fuel saving: When the oil circuit is broken, the one-way valve on the quick connector can close the oil circuit, and the oil will not flow out to avoid the loss of oil and oil pressure.
    3. Environmental protection: when the quick connector is broken and connected, the oil will not spill and protect the environment.
    4. The equipment has been changed to zero, which is convenient for transportation: large equipment or hydraulic tools that need to be easily carried are separated and transported using a quick coupling, and then assembled after reaching the destination.
    5. Economy: The above advantages have created economic value for customers.
    Fourth, how to choose a quick connector
    1. The type and temperature of the fluid (please select the quick connector of the body material and sealing material suitable for the type and temperature of the fluid)
    The proper body material and sealing material are different according to the fluid. For example, the quick connector is air. Steel is recommended, but brass or stainless steel is recommended for water.
    2. The pressure of the liquid (please select the quick connector suitable for the pressure resistance performance of the fluid pressure)
    The pressure of the fluid is also the key to selecting the quick coupling. The quick coupling for hydraulic is formed between 5.0Mpa (51kgf / cm²) -68.6Mpa (700kgf / cm²), and the structure of the quick coupling is different according to the pressure resistance characteristics.
    3. The structure of the automatic opening and closing valve (please select the quick connector for the valve structure suitable for piping)
    For the valve structure, there are two-way switch type, one-way switch type and two-way open type. In addition to the two-way switch type, fluid flows out of the piping during separation. So please pay attention.
    4. Use environment of quick connector (Please select a quick connector suitable for the structure and material of the use environment)
    Combining the humidity conditions of the use environment, the dust conditions, and the use environment that is easy to corrode, consider the type, body material, and sealing material of the quick connector.
    5. Make sure the connection thread of the selected quick connector is consistent
    In the process of using products of different brands, it is best to use the female and male heads of the same brand together. If you must use them crosswise, it is best to consult the technical staff of the product supplier before use and confirm the use before using.
    6. The shape and size of the installation (please order the product after determining the final shape and size)
    Please confirm the model and material of the quick connector, and specify the assembly shape and size corresponding to the piping characteristics. Please note that the size is related to the fluid flow.
    5. Exploded view and exploded description of quick joint
    It includes a female connector mother body with a through hole in which a steel ball is embedded; a male connector cylinder with a groove on the surface of the cylinder body; a ferrule; the female connector mother body and the male connector cylinder are hermetically matched, The steel ball on the mother body is caught in the groove on the surface of the cylinder; the clamping sleeve is set on the outer surface of the female body of the female connector, and is characterized in that it further includes a pull sleeve which is arranged on the surface of the male connector cylinder, and It is connected with the ferrule on the female connector by its internal thread.
    Labideal.com is committed to the production, sales of various vacuum hoses, vacuum bellows hose, metal bellows, metal hoses, stainless steel bellows, vacuum baffle valves, vacuum clamps, chain clamps, Elastic bellows, vacuum standard parts, quick couplings and vacuum matching pipelines, etc., hope that the high-quality products provided by us can cooperate with your company’s actual use, effectively fulfill your product quality requirements and control needs, and reduce your cost of use . Whether it is a standard product or a non-standard product, we will always provide you with the best products, the best prices, the most timely delivery time, and the best after-sales service. Labideal Vacuum can provide you with thoughtful and timely technical support at any time.
    Our company hopes to work together with you to achieve a win-win situation in the fierce market competition and march towards a better tomorrow.
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