It is very important to have a basic knowledge of the industrial performance requirements of valves, which will make it easier for us to select valves. It is recommended that the following five points should be keep in mind before starting selecting valves: 1. Valve sizes and types It should be pointed out that the valves in industrial equipment should perform multiple functions such as cuting off flows, transfering flows, mixing flows, pressure relief, preventing backflows and regulating flows....
The Selection Standard of Industrial Valves Read
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The selection of electric ball valves 1. An electric ball valve is a fluid control component, which is widely used in the fluid pipeline system. It has a very good effect on controlling flows, pressure, reflux and so on. Because the quality of the electric ball valve has a great influence on the safety of the pipeline, when we choose the electric ball valve, it must be selected according to certain steps and basis. 2. Know the pipe diameter, pressure and temperature used by the company, and know...
Notes for the Use of Electric Ball Valves Read
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What is a valve? A valve is the general term of the control parts that guide, stop and regulate the fluid (gas and liquid). For example, valves includes general valves, gate valves, globe valves, cast steel valves, etc. The valve that mainly controls the discharge and consumption of fluid is also called a plug. There are water hydrants, water distribution hydrants, gas hydrants, fire hydrants, etc. Valves play an important role in the piping of infrastructure (power, waterway and gas), construction...
The History of Valves Read
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The following are the manufacturing technology of valves: 1) Casting: Casting is a method of forming materials. Put the molten metal into the mould of the desired shape, and wait for it to solidify. Then, take out the product after cooling. 2) Forging: it is one process of compressing a metal profile by placing it between a pair of anvil surfaces or in a metal mold after heating. 3) Welding: it refers to the process of heating or pressurizing a variety of materials, so that the atoms...
What Are the Valve’s Manufacturing Technology? Read
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A gate valve refers to the valve whose closing parts move along the vertical direction of the path center line. The gate valve can only be used to fully open and close the pipeline, but it can't be used for regulation and throttling. A gate valve is a kind of valve with a wide range of use. Generally, it is selected for the cut-off device with DN ≥ 50 mm, and sometimes it is also used for the cut-off device with small diameters. The gate plate has two sealing surfaces....
Application Conditions and Operation of Gate Valves Read
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Installation of ball valves 1. A ball valve must be cleaned before operation. 2. The actuator of ball valve drives the valve stem to rotate according to the size of the input signal. When the forward rotation is 1/4 circle (900), the ball valve is closed. When the reverse rotation is 1/4 circle (900), the ball valve is opens. 3. When the direction indicator arrow of the actuator is parallel to the pipeline, the ball valve opens. When the arrow is vertical to the pipeline, the ball...
How to Install and Maintain Ball Valves? Read
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What is the advantages of filling foam on floating ball valve's top? The common floating ball valves on the market are hollow, so the damage degree of the floating ball is directly related to the pipeline pressure and medium corrosivity. The hollow floating ball is easy to shrink during transportation or collision. And it will be damaged in a period of time when the medium is corrosive. Let's first say that the wall thickness of the lower hollow floating ball is within 0.3 mm to 1.0 mm,...
Advantages of Filling Foam on Floating Ball Valve’s Top Read
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A stainless steel ball valve is widely used in various fields. Its superior quality and high performance stability can not be achieved by ordinary cast steel ball valves, and its service life is far longer than that of the cast steel ball valve. Stainless steel ball valves are widely used in city gas, city heating, petrochemical, shipbuilding, steel, pressure regulating stations, power plants and other pipeline equipment. Stainless steel ball valves can operate reliably for a long time....
An Introduction to Stainless Steel Ball Valves Read
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A valve is a control component in the fluid transportation system, which has the functions of cutting off, regulation, diversion, prevention of countercurrent, pressure stabilization, shunt and adjustment of medium flow balance. A valve is also one of the most typical equipment in the heat system. The quality of the valve and whether to select a reasonable type according to the characteristics of valves will play a decisive role in the supply heat quality. As the valves are laid in the...
An Introduction to Heated Welding Ball Valves Read
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