Advantages and disadvantages of Wuzhong instrument gate valve

The biggest difference between the electric single-seat conditioning valve and the electric sleeve conditioning valve lies in the performance and application, but both have their own advantages and shortcomings, and the advantages of one may be the lack of the other, which can complement each other and be used in different occasions. There is no difference in appearance, first of all, the two ...

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 ...

1) General purpose valve (general purpose valve): a general term for a wide range of valves, also known as ordinary valves. It is not a valve for a specific condition and a specific purpose. Although there is no clear definition of a universal valve, it mainly refers to a pressure below 2MPa, ...

1. Confirm the working conditions: P1, △P, Q, T1, fluid characteristics, allowable noise, etc.; Select the appropriate ANSI pressure class for the body and trim requirements 2. Calculate the required initial Cv value, check the noise and cavitation levels 3. Select the type of trim of the control valve: if there is no noise ...

Load the organization The role of the loading tissue is to apply a downward loading force from the top of the pressure reducing valve. The loading structure of the FITOK pressure reducing valve is mainly the loading of tension springs. Tension spring loading has the advantage of reliability and low cost, and is the most versatile loading device in pressure reducing valves.

The structure of the thermocouple is to ensure the stable operation of the thermocouple, and the requirements are as follows: The two thermoelectrodes that make up the thermocouple must be strong on the weld to maintain good quality.

The stem axis of the globe valve is perpendicular to the seat sealing face. The relatively short open or closed stroke of the valve stem and the very reliable blocking action make this valve very suitable for the blocking or adjustment of the medium and the economical application. ...

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-...

The hydraulic maintenance module uses the hydraulic locking method to control the inlet and outlet oil circuits and load oil circuits of the electro-hydraulic servo valve, and the module has the following three functions: 1. Locking function When the system is in normal condition, the hydraulic lock is in the guide ...

The mechanical deflection angle of the movable part of the surface can be measured and converted, and the size to be measured is directly indicated by the indicator, so it is also called the direct-reading appearance. According to the working principle, the indication appearance can be divided into magnetoelectric ...

1. The safety valve should have the equipment to prevent the hammer from moving by itself and the guide frame to restrain the lever from deviating, and the tension spring safety valve should have the equipment to improve the handle and prevent the adjustment screws from being twisted at will. 2. It should be installed straight in the pot merchant, the container ...

Cryogenic valves are mainly used in ethylene, liquefied natural gas equipment, air separation equipment, petrochemical tail gas separation equipment, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide cryogenic storage tanks and tankers, pressure swing adsorption oxygen production and other equipment, the main varieties are cryogenic ball valves, cryogenic globe valves, etc. ...

1. Units and scales (scales) The scale (scale) unit of the temperature instrument is uniformly selected as Celsius (°C). 2. Detect (measure) the insertion length of the component The selection of the insertion length should be based on the detection (measurement) of the component insertion.

The mechanical deflection angle of the movable part of the surface can be measured and converted, and the size to be measured is directly indicated by the indicator, so it is also called the direct-reading appearance. According to the working principle, the indication surface can be divided into magnetoelectric system appearance, electromagnetic system appearance, electric system appearance and ...

1) Casting: a kind of data molding method. The molten metal liquid is placed into the mold of the desired shape, allowed to condense, cooled and then removed from the product. 2) Forging: After heating the metal profile ...

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 process of shell experiments and seal experiments done by turbine fixed ball valves in some artificial environments is as follows. Double blocking and discharge function of turbine fixed ball valve: the turbine ball valve is fixed by using tension spring preload floating valve seat, when the valve is in two different states, fully open and fully closed, the fluid is ...

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.

1. Valve body assembly The valve body assembly shall have the following elements: structural type, nominal diameter, nominal pressure, connection type with pipeline, applicable temperature scale, raw materials of valve body and internals, valve seat diameter or rated flow coefficient, flow characteristics, valve seat leakage grade, etc. ​ ...

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.