The reason for the leakage of the sealing surface of the valve of Wuzhong instrument

Solenoid valve is an industrial equipment controlled by solenoids, and is a basic element of automation used to control fluids, which belongs to actuators and is not limited to hydraulics and pneumatics. It is used in industrial control systems to adjust the direction, flow rate, speed and other parameters of the medium. Solenoid valves can be used with different circuits to ...

Two-position five-way solenoid valve is a pneumatic component commonly used in gas-electric automatic control system, its main use is to control the double-acting cylinder to complete the automatic switching of the air circuit, widely used in the pneumatic equipment of various industrial parts, to complete the automatic control and long-distance operation in the production process, it has the ability to ...

1. The valve core is pressure balanced, even if the large-diameter valve is under the high pressure drop parts, it can also be operated with a smaller actuator. 2. The inner cavity of the valve is straight-through streamlined, which greatly reduces the activity resistance. 3. The concentric movement method of the valve core and the valve body is greatly ...

The shut-off valve is a kind of actuator in the automation system, which is composed of a multi-tension spring pneumatic membrane actuator or a floating piston actuator and a regulating valve, which receives the signal of the regulating instrument and controls the blocking, switching or switching of the fluid in the process pipeline. It has a simple structure, sensitive response, and ...

1. The human element Because of the errors caused by human elements, including misreading, miscalculation and parallax. Misreading often occurs in measuring tools such as vernier rulers and centimeter cards. The vernier scale is likely to misread a small reading, such as 10.02 mm or 9.98 mm at 10.00 mm. Divide...

In all kinds of mechanical connectors, the anti-loosening of bolts is a very important link. So can the tension spring washer be loosened? The principle of anti-loosening of the tension spring washer The anti-loosening principle of the tension spring washer is that after flattening the tension spring washer, the tension spring ...

Product features of pneumatic conditioning stainless steel butterfly valves: 1. Simple, small size, light weight, small flow resistance, large flow coefficient and good sealing performance. Large conditioning range. It is the fulfillment unit of the instrument in the automatic control system. 2、 ...

Valve application requirements (1) General gate valves, ball valves, and globe valves are prohibited from regulating according to their structural characteristics. However, in process design, it is widely used for mediation. Due to the conditioning application, the valve seal is in a throttling state for a long time, and the impurities in the oil wash the seal, damaging the seal.

1. The signal valve pushed by the control box does not move. Under the condition that the positioner is installed, the pneumatically adjustable butterfly valve is equipped with a solenoid valve. The weak current of the solenoid valve affects the information output of the control box, and the valve cannot withstand the data signal and cannot work normally. ...

Pneumatic butterfly valves are usually composed of a combination of pneumatic actuators and valve bodies and some accessories after debugging. This article first introduces the precautions for the on-site application of pneumatic butterfly valves. 1. The control cabinet sends a signal that the valve does not move, and the pneumatic conditioning butterfly valve is in the device locator after on-site investigation.

Nuclear power valves are essentially the same as those used for thermal power generation, with gate valves mainly used for high-pressure large-diameter piping, butterfly valves for low-pressure large-diameter piping, and most of the auxiliary piping for small-diameter shut-off valves or angle globe valves. Check valves, safety valves and control valves etc. are also related to other collar valves.

Digital Factory Outline The use of CAD and PDM systems, ERP and other related information systems have been appropriately popularized in many production factories at present, and Wu Zhong has completed the "digital factory" skills and systems after the key link of "how to make → process planning".

The structure of the adjustable pressure reducing valve is composed of a main valve, a pressure feedback system, and a control pipeline. The main valve is composed of main parts such as valve body, diaphragm seat, valve cover, diaphragm, valve stem, valve plate, etc. The adjustable pressure reducing valve is installed on the one-way water supply pipeline in the city, which can reduce the upstream (inlet) pressure of the higher valve.

　　Technical characteristics of single eccentric sealed butterfly valve In order to solve the extrusion problem of the butterfly plate and the valve seat of the concentric butterfly valve, a single eccentric butterfly valve is produced, and its structural characteristics are that the shaft of the valve stem deviates from the center of the butterfly plate, so that the upper and lower ends of the butterfly plate are not ...

When using stainless steel multistage pumps, it is first necessary to confirm the usefulness and functional parameters of the multistage pump and select the pump type. Criteria and basis for the selection of multistage pumps: 1. Make the type and function of the selected multistage pump fit the process parameters such as flow, head, pressure, temperature, NPSH, suction stroke, etc.

1. According to the processing requirements, some parts need to be polished, and there can be no processing burrs on the appearance; 2. All parts are degreased; 3. After the degreasing is completed, pickling and passivation will be carried out, and the cleaning agent does not contain phosphorus; 4. Rinse with pure water after pickling and passivation.

1. Before the device, check whether the valve has notched parts, whether the type is correct, whether there are debris in the valve body, and whether the muffler is blocked. 2. Close the valve and cylinder. 3. Device the cylinder on the valve, the direction of the equipment is parallel or straightened with the valve body, and check whether the screw holes are aligned.

1. The corrosion of the valve is usually understood as the damage to the metal material of the valve under the chemical or electrochemical environmental effect. Because the corrosion phenomenon is presented in the spontaneous interaction between the metal and the surrounding environment, therefore, how to isolate the metal from the surrounding environment or more use non-...

Scientific and technological innovation, Wuzhong Instrument has gone through a road of deep integration of informatization and industrialization. "There are too many foreign 'stuck neck' technical products. The control valve industry is all-encompassing, with 100,000 varieties and specifications, more than 1 million parts, and more than 5,000 quality control points.

The slag lock valve (bucket valve) is specially designed for the complex working conditions of coal gasification, and is a special hard seal ball valve that can adapt to high temperature, high pressure and high wear resistance working conditions. The slag locking valve is mainly used to solve the problem of coal slurry feeding in the gasification unit and the common problem of medium scaling in the valves used in the black water process pipeline.