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Triple offset butterfly valve
1. Gate Valve: Gate valves control the flow of fluid by moving the gate up and down, suitable for applications that require complete opening or closing. Among various types of valves, gate valves are the most widely used, but they are generally not used in pipelines transporting media such as mud. 2. Ball Valve: Ball valves use a rotating ball to control the flow of fluid. When the sphere is align...
The maintenance and upkeep of electric valves is a crucial task to ensure their safe and stable operation. Here are some suggestions and steps for your reference. Firstly, for the maintenance of electric valves, we recommend implementing regular inspection and maintenance plans. This should include regular inspections of valve fasteners and connectors to ensure they are not loose or damaged. The s...
The application of electric valves and solenoid valves in the industrial field is becoming increasingly widespread. However, many people often confuse these two types of valves and do not know the difference between them. This article will explore the differences between electric valves and solenoid valves from four aspects: working principle, usage characteristics, scope of application, common fa...
What types of pipe fittings are there? Here is a summary of the classification of its structure and working principle for you: 1. Shutoff valves are mainly suitable for cutting off or diverting medium flow. Including butterfly valves, globe valves, diaphragm valves, ball valves, plug valves, butterfly valves, plunger valves, instrument needle valves, etc. 2. Regulating valves are mainly suitable f...
According to the sealing surface configuration, it can be divided into: Wedge gate valve: single gate, double gate, and elastic gate. Parallel gate valve: single gate and double gate. Divided by the thread position of the valve stem: Rising stem gate valve and rising stem gate valve. When the gate valve is closed, the sealing surface can rely solely on the medium pressure to seal, that is, relying...
The control valve is one of the terminal control components of an automatic control system. Due to the existence of many high temperature and high pressure working conditions in chemical plants, some media have strong corrosiveness and toxicity, and are flammable and explosive. When valve packing leaks, it not only causes waste of raw materials, but also causes serious pollution to the environment...
In fluid pipeline systems, valves are control components whose main functions are to isolate equipment and pipeline systems, regulate flow, prevent backflow, and regulate and discharge pressure. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. Due to the importance of selec...
Selection and setting location of valves （1） Valves used on water supply pipelines are generally selected according to the following principles: 1. When the pipe diameter is not greater than 50mm, a globe valve should be used, and when the pipe diameter is greater than 50mm, gate valves and butterfly valves should be used 2. When adjusting flow and water pressure, it is advisable to use regulating...
1. Factors to consider when selecting The selection of valves is based on the rationality of operation, safety, and economy, as well as the empirical results of comprehensive balance comparison. Before selecting a valve, the following original conditions must be proposed: 1.1 Physical properties (1) Material status a. The material state of gas materials includes relevant physical property data, wh...
Ball valve is a device used in pipelines to cut off, distribute, and change the direction of medium flow. In use, it can be tightly closed with only a 90 degree rotation and a small turning torque. What should be noted when using ball valves? Below are some precautions for using ball valves, hoping to be helpful to everyone. In the field of valves, there are various types of valves, and the reason...
Ball Valve: Ball valves control fluid flow by rotating the ball, with a simple and durable structure and quick switching function, suitable for high-pressure and high-temperature environments. Butterfly Valve: A butterfly valve controls fluid flow by rotating a disc. It has a simple structure, small volume, and flexible operation, making it suitable for flow control and cutting off fluid flow appl...
1、 Selection and setting location of valves （1） Valves used on water supply pipelines are generally selected according to the following principles When the pipe diameter is not greater than 50mm, globe valves should be used, and gate valves and butterfly valves should be used when the pipe diameter is greater than 50mm. When adjusting flow and water pressure, it is advisable to use regulating valv...
The maintenance of welded ball valves is crucial for ensuring the normal operation of pipeline systems. Here are some basic maintenance steps: 1. Regular inspection: Regularly inspect the sealing performance of welded ball valves. If the sealing ring is found to be aged or damaged, it should be replaced in a timely manner. At the same time, check the operation of the valve. If the valve is found t...
The core ball of a floating ball valve rotates freely between two valve seat sealing rings with the help of the valve stem, while the core ball of a fixed ball valve is connected to the valve stem and rotates at the center of the valve stem. It is a ball valve with a floating ball and an elastic movable sleeve seat. Characteristics and performance of floating ball valves and fixed ball valves: Flo...
1. Gate valve Gate valve refers to a valve that moves the closing element (gate) vertically along the axis of the medium channel. Its advantages are small flow resistance coefficient, small torque required for opening and closing, and unrestricted flow direction of the medium. The disadvantage is that the structural size is large, the opening and closing time is long, the sealing surface is easily...
1. Gate valve Gate valve refers to a valve that moves the closing element (gate) vertically along the axis of the medium channel. Its advantages are small flow resistance coefficient, small torque required for opening and closing, and unrestricted flow direction of the medium. The disadvantage is that the structural size is large, the opening and closing time is long, the sealing surface is easily...
1. Gate valve Gate valve refers to a valve that moves the closing element (gate) vertically along the axis of the medium channel. Its advantages are small flow resistance coefficient, small torque required for opening and closing, and unrestricted flow direction of the medium. The disadvantage is that the structural size is large, the opening and closing time is long, the sealing surface is easily...
1. What applications are gate valves, globe valves, and butterfly valves suitable for? These three types of valves are arranged according to the difficulty of opening and closing: globe valve, gate valve, butterfly valve; Arrange according to resistance: globe valve, butterfly valve, gate valve; Arrange tightly according to closure: globe valve, butterfly valve, gate valve; Ranked by price: globe ...
Basic standards GB/T 1047-2005 Definition and selection of DN (nominal size) for pipeline components GB/T 1048-2005 Definition and selection of PN (nominal pressure) for pipeline components GB/T 6567.4-2008 Technical drawings - Graphical symbols for piping systems - Valves and control components GB/T 12220-2015 Industrial Valve Markings GB/T 12221-2005 Metal Valve Structure Length GB/T 12224-2015 ...
1、 Extraction check valve Check valve is a type of valve used to prevent medium backflow in pipelines and equipment. The extraction check valve is installed on each extraction pipe of the external heater in the steam extraction and reheating system of the steam turbine unit. Its function is to automatically close the valve plate when the unit sheds load, preventing steam from the steam side of the...
1、 Selection and setting location of valves: （1） Valves used on water supply pipelines are generally selected according to the following principles: 1. When the pipe diameter is not greater than 50mm, a globe valve should be used, and when the pipe diameter is greater than 50mm, gate valves and butterfly valves should be used 2. When adjusting flow and water pressure, it is advisable to use regula...
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