How to judge the quality of electric actuators
Classification:
Release Time：2018-01-29
The standard system of electric actuator is mainly composed of five parts. The system structure is as follows: The first part is the basic standard, which is mainly applicable to the valve electric equipment used in various industrial fields, and is mainly based on the national standard. Including terms, signs, structural length, model preparation and other specifications. The second part is the method specification, including functional experiments, life experiments and flaw detection experiments. The third part is the product specification. Basically according to the valve electric equipment structure classification and concluded that, divided into national norms and professional norms. Including gate valve, globe valve, ball valve, plug valve, butterfly valve, diaphragm valve, trap valve, special valve electric equipment, drive equipment
The standard system of electric actuator is mainly composed of five parts, and the system structure is as follows:
The first part is the root specification, the first applicable to various industrial areas with valve electric equipment, based on national norms. Including terms, signs, structural length, model preparation and other specifications.
The second part is the method specification, including functional experiments, life experiments and flaw detection experiments.
The third part is the product specification. Basically according to the valve electric equipment structure classification and concluded that, divided into national norms and professional norms. Contains gate valves, globe valves, ball valves, plug valves, butterfly valves, diaphragm valves, traps, special valves, electric equipment, drive equipment and other specifications.
The fourth part is the parts specification. For the product specification supporting the use of parts specifications, professional specifications are the main; including valve stem nut, packing, packing gland and other parts.
The fifth part is the data specification, including steel data, iron data and non-ferrous metal data specification.
The method of judging the quality of electric actuator:
The opening and closing force and opening and closing torque: this parameter refers to the valve open or closed all the necessary force or torque;
② active media: media flow through the valve will occur after the pressure loss (both before and after the valve pressure difference), that is, the valve has a certain resistance to the activities of the media, the media to overcome the resistance of the valve will consume a certain amount of energy;
Service life: It shows the durability of the valve, is an important functional indicator of the valve, and has great economic significance;
④ sealing function: the sealing function of the valve refers to the sealing parts of the valve to obstruct the leakage of the medium, which is the most important skill and function index of the valve;
⑤ opening and closing speed: the opening and closing speed is indicated by the time required for the valve to complete an opening or closing action;
Action sensitivity and reliability: This refers to the valve on the media parameters change, make the corresponding response to the degree of sensitivity;
⑦ Strength function: the strength function of the valve refers to the ability of the valve to accept the pressure of the medium;
First of all, for some electric actuator manufacturers, at the time of production, there is no professional technical performance, so they will let the electric actuator in the production process of performance defects or inferior products, because the electric actuator is a technical product first, so for it in the technology, there are high technical requirements.
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2026/02/28
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