D20T2.8 75mcl 20mm aerosol metering valve’s precise metering mechanism

1. Basic structure of metering valve
D20T2.8 75mcl 20mm aerosol metering valve is mainly composed of key components such as valve body, valve core, spring, and gasket. As the shell that contains other components, the valve body must be designed to ensure sufficient strength and sealing. The valve core is the core component that controls the spraying of aerosol, and its shape and size are precisely designed to achieve specific metering functions. The spring is used to provide the force required for the valve core to reset, ensuring that the metering valve can quickly return to its initial state after each use. The gasket is used to prevent aerosol from leaking inside the valve body and ensure the accuracy of metering.

2. Mechanism for precise metering
The precise metering of D20T2.8 75mcl 20mm aerosol metering valve is mainly achieved through the following mechanisms:
Valve core design: The precise design and manufacture of the valve core is the key to achieving precise metering. The valve core may contain a series of tiny channels or chambers, the size and shape of which are precisely calculated to ensure that a fixed amount of aerosol can be released each time the valve is pressed. The clearance between the valve core and the valve body is also strictly controlled to prevent the aerosol from leaking during the movement of the valve core.
Spring force: The spring plays two important roles in the metering valve. First, it provides the force required to reset the valve core, ensuring that the valve core can quickly and stably return to its initial position after each use. Second, the elastic force of the spring can also adjust the speed and force of the valve core movement, thereby affecting the amount and speed of the aerosol spray. The metering accuracy of the metering valve can be further optimized by precisely adjusting the elastic force and preload of the spring.
Sealing performance: The sealing performance of the metering valve is crucial to achieve accurate metering. The fit between the valve body, valve core and gasket must be very tight to prevent the aerosol from leaking inside the valve body. To achieve this goal, manufacturers usually use high-precision processing technology and high-quality sealing materials to ensure the sealing performance of the metering valve.
Flow control: In addition to the above mechanisms, the D20T2.8 75mcl dosage 20mm aerosol metering valve may also use flow control technology to further improve the accuracy of metering. For example, by setting a throttle hole or a regulating valve and other components inside the valve core, the aerosol spray flow and time can be accurately controlled, thereby achieving more accurate metering.

3. Application and Advantages
D20T2.8 75mcl dosage 20mm aerosol metering valve is widely used in occasions where the aerosol spray volume needs to be accurately controlled, such as medical, beauty, personal care and other fields. Its ability to accurately measure not only improves the product's use effect and user satisfaction, but also reduces the risk of waste and environmental pollution. The metering valve has the advantages of compact structure, easy installation and maintenance, and further broadens its application areas and market prospects.