BLOGS
Electric control valve how to control the various factors of the pipeline medium
Electric control valve is to use the power source to drive the electric actuator and then drive the valve to throttle, it is an important implementation unit instrument in industrial automation process control. With the increasing degree of automation in the industrial field, it is being used more and more in various industrial production fields. Compared with the traditional pressure regulating valve series, the electric regulating valve has obvious advantages: the electric single-seat regulating valve is energy-saving, environmentally friendly, and the installation is more quick and convenient.
The electric control valve drives the differential pressure control valve series by receiving the signal from the industrial automation control system to change the cross-sectional area between the valve core and the valve seat to control the flow, temperature, pressure and other process parameters of the pipeline medium to realize the automatic adjustment function.
The electric actuator of the electric sleeve control valve is an electronic integrated structure with servo amplifier. The control signal and power supply of the field and pneumatic grinding control valve series can control the valve opening to achieve the adjustment of pressure, flow, liquid level, temperature and other parameters. Note: In order to ensure that the control valve can work normally when driving, and the safe operation of the system, the new valve before installation, should first check the valve on the nameplate mark is consistent with the design requirements.
Article 3: If the control valve in the original system has been overhauled, in addition to the above-mentioned items, it should also check the tightness of the stuffing box and joints of the old valve.
Fourth: control valve in the field use, many often not because of the control valve itself caused by the quality, but the electric control valve installation caused by improper use, such as: installation environment, installation position and direction or improper or pipeline is not clean and other reasons.
Article 1: The regulating valve belongs to the field instrument, and the ambient temperature should be in the range of -25~60 ℃ and the relative humidity is 95%. If it is installed in the open air or high temperature occasions, should take waterproof, cooling measures. Where there is a source, keep away from the source or increase anti-vibration measures.
The second: electric control valve should generally be installed vertically, under special circumstances can be tilted, such as the tilt angle is large or the valve itself is too heavy on the valve should be increased support protection.
Article 3: The installation of the control valve pipeline is generally not too high from the ground or floor. When the pipeline height is greater than 2m, the platform should be set as much as possible to facilitate the operation of the hand wheel and facilitate maintenance.
Fourth: electric control valve installation before the pipeline cleaning, remove dirt and welding slag. After installation, in order to ensure that no impurities remain in the valve body, the valve should be cleaned again, that is, all valves should be opened when passing into the medium to avoid impurities stuck. After using the handwheel mechanism, it should be restored to the original neutral position.
Article 5: In order to enable the electric control valve to continue the production process in the event of failure or maintenance, the control valve should be added with a bypass pipeline.
Recommended News
How to install electric gate valve?
When using equipment, scientific installation is required. If the installation method is wrong, then the performance of the equipment is difficult to reflect, but also may cause harm to the equipment, so how to install the electric gate valve. In the installation of electric gate valve, the need to do the following, to be able to reflect its own value. First of all, before installing the gate valve, you need to read the installation instructions. If you do not read the relevant instructions when installing the gate valve, but only rely on the so-called experience and awareness to install, it is likely to make mistakes in installation. Shangzhou valve to remind the majority of users, electric gate valve installation needs to have a certain direction, need to pay attention to some details, if the installation of gate valve, need to use glue, then need to go through a period of maintenance, can be used. Therefore, when installing the electric gate valve, don't think how to install it, just blindly install it. Before safety, it is very important to learn the relevant installation knowledge.
What are the advantages of automatic control ball valve?
The automatic control ball valve is widely used in many fields, and it is naturally inseparable from its unique advantages. This kind of ball valve has the following excellent advantages: Advantage 1: The automatic control ball valve has good weather resistance. The automatic control valve can still maintain good working efficiency in various complex environments. Naturally, it is inseparable from the high temperature resistance, low temperature resistance, acid and alkali resistance of the automatic control valve. Therefore, the application range and field of this ball valve are relatively broad. Support the development of the national economy. Advantage 2: The working stability of the automatic control ball valve is high. After countless experiments, the Shangzhou valve continuously improves the working stability of the automatic control ball valve. Therefore, the ball valve provided by the company can support the stable and sustainable production of the enterprise. Advantage three: high precision, automatic control ball valve in the research and development, with high scientific and technological content, optimize material selection, optimize the internal design and focus on experiments, so that it has a high degree of precision, which is of great value for promoting the development of green economy.
What is the difference between globe valve and gate valve?
The valve is a control component in the fluid delivery system, with the functions of cut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves for fluid control systems, from the most simple cut-off valve to a very complex automatic control system used in a variety of valves, its varieties and specifications quite a wide range. Globe valves, gate valves, butterfly valves, check valves and ball valves, etc. These valves are now indispensable control components in various piping systems. Each valve is different in appearance, structure and even functional use. However, there are some similarities between the cut-off valve and the gate valve in appearance, and both have the function of cutting off in the pipeline. Therefore, there will be many friends who have little contact with the valve to confuse the two. In fact, if you look closely, the difference between the globe valve and the gate valve is quite large.
Welcome to leave a message, there may be a discount
Public Account
