Normally closed air valve two-way for breast pump

What is a Normally Close Two-Way Solenoid Valve?

The two-way miniature Normally Closed Air Valve is a miniature valve used to control gas flow. It usually has two inlets and outlets, and in its normal state, the valve is closed, the so-called "normally closed" state. This kind of valve is usually used in situations where precise control of gas flow is required, such as pneumatic control systems, pneumatic transmission systems, etc.

The two-way miniature normally closed air valve consists of a valve body, a valve core and a driving mechanism. One end of the valve core matches the valve body, and the other end is open to allow gas to pass. The driving mechanism can change the position of the valve core to control the on and off of the gas. Under normal conditions, the valve core is closed due to gravity or spring force to achieve gas sealing. When there is an external control signal or gas pressure, the driving mechanism drives the valve core to move, opening or closing the valve, thereby controlling the flow of gas.

The two-way miniature normally closed air valve has the advantages of simple structure, small size, light weight and high reliability, and is widely used in the field of automation control. It can be used in conjunction with other pneumatic components to form various pneumatic control systems and pneumatic transmission systems to realize gas pressure control, flow control, direction control and other functions.

How does normally closed Micro Solenoid Air Valve realize gas flow?

The normally closed mini air control valve controls the gas flow by changing the position of the valve core. When an external control signal or gas pressure acts on the valve, the driving mechanism drives the valve core to move, opening or closing the valve, thereby controlling the flow of gas. Specifically, when the valve needs to be opened, the external control signal or gas pressure will overcome the spring force or gravity on the valve core, causing the valve core to move to the position at the other end of the valve body, thus opening the valve and allowing gas to pass. When the valve needs to be closed, the external control signal or gas pressure is released, and the valve core returns to the original position under the action of spring force or gravity, thus closing the valve and preventing gas from passing through.

Two-way miniature normally closed air valves usually have two states: normally closed and normally open. In the normally closed state, the valve is closed to prevent gas leakage; in the normally open state, the valve is open and the gas can flow freely. According to different needs, the status of the valve can be set in the control system to achieve precise gas flow control.

What is the stopper in the Mini Solenoid Air Valve used for?

The stopper plays a vital role in the micro air valve, and its specific functions include the following aspects:

1. Limiting function: The stopper can limit the movement range of the valve core, so that the valve core can only move within the set range, thereby ensuring the normal operation of the valve.

2. Supporting function: The stopper can support the valve core, prevent the valve core from bending or deforming under the action of high-pressure gas, and improve the stability and reliability of the valve.

3. Reduce friction: The stopper can reduce the friction between the valve core and the valve seat, reduce the resistance when the valve is closed, and improve the sensitivity and response speed of the valve.

4. Sealing effect: When the valve is closed, the stopper can play a certain sealing effect to prevent gas leakage.

Technical Specification

How do stop plates improve the sensitivity and response speed of micro air valves?

The stop plate improves the sensitivity and response speed of the dc 3v air valve by reducing friction and optimizing valve core movement.

First, the stopper can reduce the friction between the valve core and the valve seat. In a micro air valve, the movement of the valve core is affected by the pressure of the gas. If the friction between the valve core and the valve seat is too large, it will affect the movement speed and sensitivity of the valve core. By reducing friction, the stopper allows the valve core to respond more quickly to gas changes, thereby improving the sensitivity and response speed of the valve.

Secondly, the stopper can also optimize the movement trajectory of the valve core. When gas pressure acts on the valve core, the valve core will move under the pressure. If the movement trajectory of the valve core is obstructed or irregular, the sensitivity and response speed of the valve will be affected. The stopper can ensure that the movement trajectory of the valve core is as regular and smooth as possible, thus improving the sensitivity and response speed of the valve.

Dimension Structure

What material is the stopper in a Dc Micro Air Valve generally made of?

The material of the stop plate in the micro valve can be selected based on the specific application and performance requirements. Generally speaking, commonly used materials include

The following types:

1. Metal material: The metal stopper has high strength and wear resistance, and is suitable for gas applications with high pressure and high flow rate. Common metal materials include stainless steel, copper, aluminum, etc.

2. Plastic material: The plastic stopper has good corrosion resistance and insulation, and is suitable for corrosive gases and situations with high insulation requirements. Common plastic materials include nylon, polyoxymethylene, polytetrafluoroethylene, etc.

3. Ceramic material: Ceramic stoppers have the characteristics of high hardness, high wear resistance, high temperature resistance, etc., and are suitable for gas applications with high temperature, high pressure, and high flow rate. Common ceramic materials include alumina, zirconia, etc. In summary, the stopper material in micro air valves needs to be selected based on specific applications and performance requirements to achieve optimal performance and reliability.