FISHER DVC2000/DVC6200 Smart Valve Valve Positioner Calibration

The opening and closing parts of the butterfly valve are butterfly plates, which are driven by the valve stem and rotate 90° around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjusting. It is mainly used to cut off the medium in the pipeline, with simple structure, flexible operation, fast switching, small size, short structure.

Use and Maintenance: 1. It is recommended that the user unit appoint a special person to be responsible for the use and maintenance 2. Regular maintenance 1-2 times a year is the best way for the solenoid valve to work reliably and live long. The following 4 conditions inside the solenoid valve are the reasons that hinder the normal operation of the solenoid valve and shorten the life of the solenoid valve. ⑴ ...

The Fisher Fisher Operator Motor Controller is different from the previous in-vehicle control system, and it can provide a stable and smooth power output. They chose the method of embedding the field programmable logic manipulator into the motor manipulator to complete the function of the manipulator to output stable and smooth power. Embed...

Emerson Process Management has been serving the nuclear industry for more than 40 years. The company's Fisher nuclear control valve series is used in 90% of the world's nuclear power plants with excellent reliability. Currently, with the expansion of the size of the enterprise and the professional network of many nuclear applications around the world...

On the issue of not having SIS on the production plant or storage tank farm, share your opinions: First of all, we have to figure out what SIS is for, in fact, SIS is not as mysterious as imagined, its function is the same as safety valves, rupture discs, etc., is a safe protective layer. That...

Fisher Fisher 3582-Pneumatic Valve Positioner with Bypass, with Input Signal, Air Supply and Output Pressure Gauges Series Contains: Model 3582A, Model 3582C, Model 3582D, Model 3582G, unless otherwise stated and 3582NS. Type 3582A - Pneumatic valve positioner without bypass ...

According to the China Valve Association, the total annual sales of 773 enterprises in 2005 was 25.935 billion yuan, and it can be presumed that the national valve output value in 2005 was 36.144 billion yuan. And more than 20 scouts were interviewed, according to their predictions, the total annual sales of China's valves in 2010 was 6.736 billion yuan. Valve industry ...

1. Testing and adjustment 1. Whether it is manual, pneumatic, hydraulic or electric, all parts of this product have been seriously debugged before leaving the factory, and the user should uniformly fix both ends of the import and export when re-checking the sealing function Fixed, close the disc valve, apply pressure to the inlet side, and check whether there is any leakage on the outlet side, ...

We often see such a scene on the steam pipeline, the pipe section that can be "straight" suddenly bent a section, I believe that many people who have seen it will have such doubts like me, this is not "painting snakes", in fact, the design of the pipeline operation has its own original...

There are two types of leakage between the valve core and the valve seat: 1. Damaged leakage; 2. Valve position leakage. For metal-sealed valves, breakage leakage refers to the default sealing line between the valve core and the valve seat, which makes the sealing line disconnected.

Cavitation: When the static pressure of the liquid entering the first-class impeller in the pump is lower than or equal to the saturated vapor pressure at this temperature, the liquid vaporizes and produces bubbles. This vaporization and condensation produce ...

FISHER Locator is a division of Emerson Electric Company, a Fortune 500 United States. In 1992, Emerson acquired Fisher and merged with Rosemount, another world leader in process instrumentation, to form Fisher-Rosemount to better ...

The Fisher Positioner DVC6200 is Emerson's valve-mounted, digital valve controller that intelligentizes the entire control valve assembly. Take control of your process with important, real-time information that can be accessed from anywhere in the loop. Also able to get a problem before it becomes ...

The sealing surface is the key working surface of the valve, the quality of the sealing surface directly affects the service life of the valve, and the material of the sealing surface is an important factor to ensure the quality of the sealing surface. Therefore, the following factors should be considered when selecting the valve sealing face material: (1) Corrosion resistance. "Corrosive" ...

First of all, we must know a concept, what is a conditioning valve, that is, a control valve. Control devices for regulating fluid flow in industrial process control systems. It can adjust the process parameters such as pressure, temperature, flow rate, and liquid level of the fluid by manipulating the fluid flow Conditioning valve composition: valve body ...

Emerson's Fisher Fisher valve installation five key points: First, direction. Many valves are directional. Such as globe valves, throttle valves, pressure reducing valves, check valves, etc. , if installed in reverse, it will ...

Routine maintenance is a planned overhaul before a control valve fails, which can be understood as preventive maintenance and usually includes the following tasks. 1. Stress relief Pipelines can produce various stresses due to improper combination or installation, such as thermal stress caused by high-temperature media, uneven tightening force during installation, etc.

1. Pre-treatment of pickling passivation If there is surface dirt before pickling and passivating the stainless steel workpiece, it should be cleaned mechanically, and then degreased and degreased. If the pickling solution and passivation solution can not remove the grease, the presence of grease on the surface will affect the quality of pickling passivation.

When the electrical valve positioner is used, we need to understand its operating principle, and after understanding, install and use it according to the principle, so as to obtain accurate data. Then the editor below will introduce you to the relevant knowledge of valve positioner. The principle of action of the electrical valve positioner ...

In the event of a malfunction, focus on which parts to inspect 1. Valve body wall For the control valve used in the occasion of high pressure difference and corrosive medium, the inner wall of the valve body is often affected and corroded by the medium, and the pressure resistance and corrosion resistance must be checked. 2 seats When the regulating valve is working, due to the infiltration of the medium...