I. Judging internal leakage in gate valves. Step 1: First, “Know” the Energy Consumption Calculation for Internal Leakage in Gate Valves. For the daily energy consumption calculation of the equipment, if the raw materials used today are the same as those used yesterday but the yield decreases, we can initially judge that there may be…
The flow rate and flow velocity of a valve mainly depend on its nominal diameter, and are also related to the resistance of the valve’s structural type to the medium. Meanwhile, they have certain inherent connections with various factors such as the valve’s pressure, temperature, and the medium’s concentration. The flow channel area of the…
What is a cryogenic valve? A cryogenic valve is designed for media with temperatures ranging from -40°C to -196°C. It is primarily used in ethylene plants, LNG liquefaction facilities, LPG/LNG storage tanks and terminals, air separation units, petrochemical tail gas separation equipment, cryogenic storage tanks and tankers for liquid oxygen/nitrogen/argon/carbon dioxide, pressure swing adsorption oxygen…
High-pressure hydrogenation gate valves are used to control the flow and pressure of hydrogen in hydrocracking and hydrofining processes. During production, high-pressure hydrogen reacts chemically with feedstock oil to improve the quality and yield of oil products. The stable performance of high-pressure hydrogenation gate valves ensures the stable transportation of high-pressure hydrogen, which in turn…
What is a vacuum valve? A vacuum valve is a component in a vacuum system used to change the direction of gas flow, regulate gas flow rate, or cut off/connect pipelines. The closing member of a vacuum valve is sealed with a rubber or metal gasket. Valve seal is critical for vacuum valves: while materials…
Natural gas ball valves control the flow of gas, playing a crucial role in industrial pipeline systems, . However, internal leakage in ball valves occurs occasionally, which not only causes waste of resources but also poses potential safety hazards. So, how should internal leakage in natural gas ball valves be handled? Ⅰ. Hazards come from…
Among the pipeline connection methods, socket weld(abbreviated as SW) and butt weld(abbreviated as BW) are two common connection methods by welding. Socket welding or butt welding each has its own characteristics and suitable for different scenarios. What is socket welding? Socket welding only requires inserting one pipe into the connecting end of another pipe, and…
How is the service duration of the normal valve packing ? In valve design or usage experience, the packing of rising and falling valves is mostly asbestos packing, graphite packing or polytetrafluoroethylene V-shaped packing. However, these types of packing are restricted by the number of times the valve is opened and closed. That is, as…
For valves working in corrosive media conditions, corrosion prevention is the most crucial job. If the metal materials of chemical valves is not correctly selected, very esily it may damage the equipment at best, and at worst, it may lead to accidents or even disasters. According to some relevant statistics, about 60% of the chemical…
What key factors should we pay attention to when converting a manual valve into a pneumatic valve? I. Valve Compatibility Valve Type Matching: When selecting a pneumatic actuator, the primary task is to ensure that it matches the type of the existing manual valve. Different types of manual valves, such as gate valves, globe valves,…
The working temperature and nominal pressure ranges of common materials for valve bodies are as follows: The above are the main categories of common materials for valve bodies. Specifically, there are many different grades within each material category, and each grade is suitable for different pressure levels. Therefore, when selecting the material for the valve…
As a key component in fluid control systems, valves are widely used in various industrial fields. With the continuous development of science and technology, the valve industry is also constantly innovating and progressing. Today, let’s explore the advanced technologies and innovation trends in the valve industry. I. Technological Innovation Leads Industry Development. In the valve…
When selecting a valve, certain steps and criteria need to be followed. In terms of the basis for valve selection, factors such as the purpose of the valve, the operating conditions, the control mode, the properties of the working medium, the requirements of the fluid characteristics, the installation dimensions, and the external dimensions need to…
In sewage lift pumping stations, the selection of valves is of vital importance. The following are five commonly used types of valves, which play a crucial role in the sewage treatment process:
Valves are key components in pipeline systems, responsible for controlling the flow rate and direction of fluids. Today, let’s talk about the installation and cleaning of valves. Installation Requirements: Valve installation needs to comply with relevant regulations to ensure the correct flow of the fluid medium and avoid leakage or performance degradation caused by upside-down…
Valves, an important component in the field of fluid control, have a wide variety of types and extensive applications. They are like the guardians of fluid systems, precisely regulating the flow of various media. So, exactly how many types of valves are there? Today, let’s enter the world of valves and explore their diverse classifications….
Valves are one of the common devices used in both industrial and daily life. Different types of valves have different characteristics and application scenarios. Knowing that about various valve types can help us better select and use valves, improving the operational efficiency and safety of equipment. Accident Caused by Valve Fracture On one date of…
The ball is the opening and closing part of the ball valve. The ball rotates around the center line of the valve body to open and close the ball valve. The ball valve can cut off, adjust, distribute and change the flow direction of the medium in the pipeline. Ball valve has many advantages and…
There are nine commonly used materials for valve bodies：
The following valve installation for you to explain the matters needing attention.
1.What is valve nominal pressure? Valve nominal pressure refers to the pressure level specified by the valve size and design standards. It is one of the important size parameters of the valve and is usually marked as PN. Rated operating pressure refers to the pressure range of the valve during normal operation and is also…