Instructions for selecting electric actuators!

Instructions for selecting electric actuators!

1. Determine the output torque of the electric actuator according to the torque required by the valve. The torque required for opening and closing of the valve determines the output torque of the electric actuator. It is generally proposed by the user or selected by the valve manufacturer as an actuator manufacturer. It is only responsible for the output torque of the actuator. The torque required for the normal opening and closing of the valve is determined by the valve diameter, working pressure and other factors. However, due to the difference in the processing accuracy and assembly process of the valve manufacturer, the valve of the same specification produced by different manufacturers is different. The required torque is also different. Even solenoid valves with the same specifications produced by the same valve manufacturer have different torques. When selecting the torque of the actuator, it will cause the valve to be unable to open and close normally. Therefore, the electric actuator must be selected. Reasonable torque range.　　

    2. Determine the electrical parameters according to the selected electric actuator. Because the electrical parameters of different actuator manufacturers are different, it is generally necessary to determine the electrical parameters when designing and selecting, mainly motor power, rated current, secondary control circuit voltage, etc. , Often negligence in this regard, as a result, the control system and the electric actuator parameters do not match, causing malfunctions such as air circuit breaker tripping, fuse blown, thermal overload relay protection tripping during operation.　　

    Third, the choice of manufacturers of electric actuators At present, there are many manufacturers of exquisite electric actuators on the market. The products produced are similar in appearance, and the technical parameters provided in the materials seem to be similar, but in fact, in terms of product performance, quality, Reliability, durability, etc. are very different. This gives the majority of matching users a feeling of seeing flowers in a fog.　　

    How can we choose some good quality manufacturers and actuators? Here are some methods and criteria for reference.　　

    ● Have the products produced by the manufacturer passed the product performance, protection level or other special performance inspection tests of the national authoritative testing agency? Have you obtained CCC, CE, CAS, UL and other safety certifications?　　

    ●What is the manufacturer's manufacturing technology level and equipment situation? Is it equipped with necessary inspection and testing equipment? Has the whole-process quality assurance system been truly established and improved and passed the ISO9001: 2000 international quality management system certification? Does it actually operate in accordance with the system requirements in the actual production process instead of just having a certification certificate. Due to the development of publicity methods now, users with large orders or qualified users can go to the manufacturer to visit the factory instead of trusting the manufacturer's promotional materials. Nowadays, some manufacturers clearly only have a dozen or even a few people in the workshop-style production, and do not have the necessary technical personnel, production equipment and testing methods, but they are like a flower on the promotional materials or web pages. Same, so users should be careful not.　　 High-temperature solenoid valve ●The manufacturer has several years of manufacturing time. As we all know: modern industrial production emphasizes order, coordination, meticulousness and rigor. As a modern production unit, it is impossible to organize a strict and effective production collective without three to five years of running-in. The products produced by it have not undergone three or five years of actual use inspection on site, and it is impossible to say how the quality, life, and reliability of the products produced are. Nowadays, some manufacturers have just established themselves, boasting on their webpages that their products will cast internationally renowned brands, and boasting that their company has a huge organization, established a domestic and international marketing network, etc., these can only be self-made. Say confident.　　

    ●Judge the appearance quality and workmanship of samples from manufacturers. It is true that good appearance quality of a product does not necessarily mean good internal quality. However, if the appearance quality of a product is very rough and the internal parts are poor in workmanship, the performance and quality of the product cannot be good. Because the appearance quality and the fineness of workmanship are actually a reflection of various factors such as a manufacturer's technical level, equipment capabilities, manufacturing process, business philosophy, and financial strength. This is a relatively simple way to judge product quality.　　

    ●Pay attention to the team strength of the manufacturer. As we all know: if you want to make a company or a product, a gas solenoid valve must have a sincerely cooperative team, including a collection of talents in technical design, quality control, business management, product marketing and other aspects. Nowadays, some manufacturers have just been established, and there are only one or two technical management personnel. The products are made up of a few parts in the east and a few parts in the west. But it can boast how reliable its product quality is, how good its business philosophy is, and how big the company is. These are just a kind of propaganda means needed to survive.

    This article is original by gas solenoid valve, please indicate http://www.sungofluid.com/