Fisher Fisher - Installation height for switches, sockets, angle valves, faucets, etc

The Fisher FIELDVUEDVC6200p digital valve controller is a PROFIBUSPA communication instrument with a non-link, non-contact stroke feedback. In addition to the traditional conversion function of digital signals to pneumatic output pressure, the DVC6200p digital valve controller provides easy access to information critical ...

Fisher Fisher Valve Positioner Type, according to the structure, is divided into Fisher 3660/3661/3710/Pneumatic Valve Positioner, FISHER3528I Electric-Pneumatic Valve Positioner and Fisher DVC6200/DVC2000 Digital Intelligent Valve Positioner, which has single acting and double acting, and is the main attachment of the control valve.

Types of ball valves and their advantages Ball valve and plug valve are the same type of valves, only its closing part is a ball, and the ball rotates around the center line of the valve body to achieve opening and closing. Ball valves are mainly used in pipelines to cut off, distribute and change the flow of the medium.

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.

The power of Fisher is huge, the power of example is infinite, in today's market to achieve a better survival of our goods, we must have the characteristics of our own products, from the development of our valve industry, in the current market, such equipment ...

Pressure testing method for ball valves The strength test of the pneumatic ball valve should be carried out in the semi-open state of the ball. (1) Floating ball valve tightness test: the valve is in a half-open state, one end is introduced into the test medium, and the other end is closed; Turn the ball several times, open the closed end inspection when the valve is closed ...

The gas pressure reducing valve is to control the opening of the opening and closing parts in the valve body to adjust the flow of the medium, reduce the pressure of the medium, and at the same time adjust the opening of the opening and closing parts with the help of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range, and the cooling water is sprayed in the valve body or behind the valve to reduce the pressure of the medium.

The system hardware design of the valve positioner needs to reduce the interference between the analog ground and the digital ground, and at the same time make full use of the internal space of the positioner housing to divide the hardware system into two parts: the main control board and the interface board. Among them, the main control board of the valve positioner includes a single-chip microcomputer Z small system and a human-computer interaction model.

Performance characteristics of electric control valves The electric control valve is composed of a combination of electric actuator and control valve, and its main features are: 1. Light weight and beautiful appearance. 2. Functionally, it can replace many products with incomplete functions, simplify the modeling, and solve the complex factory management, complex selection, ...

Fisher DVC6200 valve positioner has been fully verified in the global market and the quality of trustworthy and reliable products, has made a great contribution to industrial automation fluid control, visible industries are petroleum, chemical, electric power, paper, pharmaceutical, steel, water conservancy, ...

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. Compressed filler (1) Plant fiber filler Made of hemp or cotton impregnated with oil, wax or other impermeable materials for use on low-pressure valves below 100°C. It is suitable for water, ammonia and other media. (2) Asbestos fiber filler Asbestos fibers have good heat resistance, can resist weak acids, strong alkalis, ...

Electric control valves have been more and more widely used in various industrial control systems due to their high control accuracy, convenient installation and commissioning. However, in the process of use, there are also some problems that plague field instrument personnel, that is, the problem of valve leakage. Here we will explore the electric ...

The vibration of the control valve is generally divided into two states, one is the overall vibration of the control valve, that is, the entire control valve frequently vibrates on the pipeline or base. The other is the vibration of the spool of the regulating valve, which can be seen from the frequent movement of the valve stem up and down, and the following are the causes of these two vibrations and their treatment Measure...

How Fisher Pneumatic Control Valves Work: Pneumatic control valve is usually composed of pneumatic actuator and control valve connection, installation and commissioning, pneumatic actuator can be divided into single-acting and double-acting two-acting, single-acting actuator has a return spring, and double-acting actuator has no return spring. ...

Fisher valve positioners use an I/P electrical converter that converts an electrical signal into a gas signal. So what do we need to pay attention to during the conversion process? How do I make the switch? Here's how it goes. The I/P electrical converter of the Fisher valve positioner is made from a gas source through a constant throttle ...

Fisher fisher 67CFR-237, 67CFR-237 series filter pressure reducing valve in large quantities, 67 series filter pressure reducing valve with fast response, strong flow capacity, wide temperature range, high control accuracy several huge advantages, can be a good help valve to achieve accurate control and fast adjustment ...

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.

What should I pay attention to when the automatic initialization of the valve positioner is unsuccessful? DVC6200 smart valve positioners need to be initialized before they are put into use, and due to incorrect installation and use, they often run into trouble during the initialization process. place There are several aspects that need to be noted: 1 ...

FISHER Valve Positioner From mechanical to intelligent, FISHER Intelligent Valve Positioner can effectively reduce the labor intensity of maintenance personnel in the first line. Intelligent communication mode: The obvious feature of intelligent valve positioner is intelligent communication. For our process industry ...