Miniature Parallel Valve DC12V for medical products

Miniature Parallel Valve is a device for controlling gas flow. It is composed of several independent valves. When the valve is closed, the gas cannot pass through. When the valve is open, the gas can pass through freely.

The working principle of the micro parallel valve is based on the control of air pressure. When the valve is closed, the gas pressure passing through the valve will close the valve. When the valve is open, the gas pressure overcomes the spring force of the valve and opens it to allow the gas to pass through.
Micro parallel valves are usually controlled by a control unit that can be switched on or off by electrical signal or manual operation. In some applications, micro-parallel valves can also be used in conjunction with devices such as sensors and computers for automatic control.

Technical Specification

The application fields of micro multi-gas valves are very wide, mainly including the following aspects:

(1) Medical equipment: In medical equipment, micro multi-gas valves are used to control the gas flow and pressure of ventilators, anesthesia machines and other equipment to ensure the safety of patients.

(2) Laboratory instruments: In the laboratory, micro multi-gas valves are used for the measurement and control of various gas flow and pressure, such as gas chromatographs, mass spectrometers, etc.

(3) Environmental protection equipment: In the field of environmental protection, micro multi-gas valves are used to control gas flow and pressure, such as gas monitoring instruments, waste gas treatment equipment, etc.

(4) Industrial automation: In the field of industrial automation, micro multi-gas valves are used to control gas flow and pressure in the production process, such as pneumatic manipulators, automated production lines, etc.

Dimension Drawing                                                                      

Control method of micro multi-gas valve

The control methods of micro multi-gas valves mainly include electromagnetic control, air pressure control and stepper motor control. Electromagnetic control uses an electromagnet to generate a magnetic field force to drive the valve core action, which is fast and reliable; air pressure control drives the valve core action through air pressure, which is suitable for occasions that require larger air flow and pressure; stepper motor control uses stepper control to drive the valve core action. The inlet motor drives the spool movement, which has high precision and controllability.

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How is the accuracy of micro multi-gas valve defined?

The accuracy of a miniature multi-gas valve generally refers to its ability to control gas flow, pressure and direction. Specifically, precision is defined

as follows:

1. Flow accuracy: refers to the ability of a micro multi-gas valve to control gas flow within a certain period of time. Usually expressed in percentage, for example, if the flow accuracy of a miniature multi-gas valve is ±2%, then within 100 seconds, its flow rate change range should be between 98 seconds and 102 seconds.

2. Pressure accuracy: refers to the accuracy of the micro multi-gas valve in controlling gas pressure. It is generally expressed in terms of the variation range of the pressure value. For example, if the pressure accuracy of a miniature multi-gas valve is ±5%, the gas pressure it controls should fluctuate between 95% and 105% of the set value.

3. Directional accuracy: refers to the ability of the micro multi-gas valve to control the direction of gas flow. Since micro multi-gas valves are usually composed of multiple valve cores, the opening and closing status of each valve core can be precisely controlled to control the flow direction of the gas. Directional accuracy is usually measured by the consistency and accuracy of the spool action.