The pneumatic control valve is to use compressed air as the power source, the cylinder as the actuator, and with the help of electrical valve positioners, converters, solenoid valves, position retention valves and other accessories to drive the valve, realize the switching or proportional adjustment, and receive the control signal of the industrial automation control system to complete the adjustment.

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.

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 control valves are divided into electric control valves, pneumatic control valves and manual control valves, and the following mainly introduces pneumatic control valves and electric control valves. Fisher pneumatic control valve is based on compressed air as the power source, cylinder as the actuator, and with the help of electric/pneumatic valve positioner, converter, ...

The world's water treatment equipment giant United States Watts Industrial Group recently made a forecast that the total annual demand of China's valve market is not less than 10 billion yuan. According to the scientific concept of development, in order to ensure the coordinated development of the economy and improve the people's living standards in the future, China will inevitably build infrastructure, such as water.

To extend the life of a Fisher valve, most of us pay attention to installation and maintenance, but operation is also important. For valves, it is necessary to be able not only to install and maintain, but also to operate. Dongguang valve pointed out: valve installation, maintenance, operation, no one is missing...

There are many different types of Fisher Fisher controllers, and today I will share with you some small knowledge of Fisher valve controllers. Fisher Fisher Valve Controller Classification: Pneumatically operated valves are operated by means of a positioner to receive an input signal from the process controller.

Fisher Fisher locator may encounter the following kinds of failures in the process of use, don't be nervous in the face of failures, we just need to find out the cause of the failure The fault can be solved very well, and the following is a summary of what we have done for you. 1. Fisher Fisheldine ...

The Fisher Model 1098-EGR and 1098H-EGR regulators provide economical and accurate pressure control in a variety of applications; natural gas distribution systems; gas supply for industrial boilers, furnaces, ovens and mixers; and large commercial/industrial establishments such as shopping malls and schools. They are also used in industrial ...

1. Selection of gate valves In general, gate valves should be preferred. In addition to steam, oil and other media, gate valves are also suitable for media containing granular solids and high viscosity, and are suitable for venting and low vacuum system valves. For media with solid particles, the gate valve body should be equipped with ...

United States FISHER gas equipment has first-class quality and advanced technology, which is the technical vane of the gas equipment industry. It provides high-quality products and technologies, consulting, project management and maintenance services for specific gas equipment industries. FISHER is a Fortune 500 company in the world.

The Fisher Fisher controller is primarily a system that uses digital codes representing processing parameters, processing sequences, and processing methods as control commands. Its processing efficiency and machining accuracy are both It is used in many places where small batches are produced, and it is also very popular. Then the editor is a big ...

1. Soft sealing material (1) Butadiene rubber (NBR). Butadiene rubber has excellent oil resistance; The heat resistance is better than that of natural rubber and styrene-butadiene rubber; Good air tightness and water resistance. Dingjing rubber can be divided into Dingjing-18, Dingjing-26 and Dingjing-40. Xiangjing rubber is suitable for temperatures from -60 to +120 degrees ...

Fisher Equipment International, Inc. is a division of Emerson Electric Company, a Fortune 500 company headquartered in the United States, and Fisher is a leader in industrial control valves for process control. Fisher Control Equipment International, Inc. has been around since 1880. At the time, in the state of Iowa in the United States ...

When choosing a valve stem packing, it should be determined according to the specific conditions. The method we generally choose is: between pressure and temperature, only one *** value can be satisfied; When choosing a high-temperature valve packing, the temperature should be considered first; For corrosive media with low temperature and pressure, the ...

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 ...

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, ...

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" ...

In recent years, with the development of mechatronics, electric valves, an important mechanical product, have ushered in the world's leading market. Compared with traditional valves (manual valves, pneumatic valves), electric valves are more resource-saving, safe and reliable in operation. In today's increasingly loud call for environmental protection and safety, 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...

Today we will explain what are the advantages and disadvantages of the globe valve, we all know that the globe valve is a common on-off valve that cuts off the pipeline medium, let's take a look. Globe valves have the following advantages: 1. The structure is simple, and the manufacturing and maintenance are relatively convenient. 2. Work itinerary ...