Diaphragm pump selection methods
Published time:
2025-03-04
The diaphragm pump's operating principle only applies when selecting pneumatic actuators. Its operating principle is formed by the combination of the actuator's positive and negative actions and the valve's positive and negative actions.
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One
The diaphragm pump's operating mode is only relevant when a pneumatic actuator is selected; its operation is determined by the combination of the actuator's positive and reverse actions and the valve's positive and reverse actions.
The function mode of the diaphragm pump is only when the pneumatic actuator is selected, and its mode of action is formed by the combination of the positive and negative effects of the actuator and the positive and negative effects of the valve.
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Two
The flow characteristic of a diaphragm pump refers to the relationship between the relative flow rate of the medium through the valve and the valve displacement (relative valve opening). Ideal flow characteristics include four main types: linear, equal percentage (logarithmic), parabolic, and quick-opening. Commonly used ideal flow characteristics include linear, equal percentage (logarithmic), and quick-opening.
The flow characteristic of the diaphragm pump refers to the relationship between the flow of the medium through the relative flow of the valve and the displacement of the valve (the relative opening of the valve). The ideal flow characteristics are mainly 4 kinds, such as straight line, equal percentage (logarithm), parabola and fast opening. Commonly used ideal flow characteristics are linear, equal percentage (logarithmic) and fast open three.
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Three
The selection and determination of the diaphragm pump's diameter primarily depend on the valve's flow capacity, or Cv. Cv calculations for diaphragm pumps are necessary during instrument design and selection for various engineering projects, and design specifications must be provided.
The selection and determination of the caliber of the diaphragm pump is mainly based on the circulation capacity of the valve, that is, CV. In the design and selection of various engineering instruments, the CV calculation of diaphragm pumps is required, and the design instructions for diaphragm pumps are provided.
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