When it comes to a gate valve, we should all be familiar with it. In short, a gate valve is a gate with opening and closing parts, and its movement direction and fluid direction are perpendicular to each other. In addition, the gate valve can only be fully opened or fully closed, and it can not be adjusted or throttled. However, people have been puzzled about the expression method and the meaning of gate valve models. A gate valve is a common type of shut-off valve, and it is generally...
12 Kinds of Common Fire Valves
A summary of valve knowledge 1. Gate valves Working principles: there are gate opening and closing parts inside the valve body. The movement direction of the gate is perpendicular to the direction of the fluid. Because water can be blocked like the water gate, it is named a gate valve. Scope of applications: gate valves are used for water outlet pipes and suction pipes of fire pumps, water outlet pipes and suction pipes of stabilized pressure pumps and fire water supply pipelines....
Features, Types and Structures of Gate Valves
1. Features of gate valve Gate valves refer to the valve whose plate move in the vertical direction along the path centerline. A gate valve is mainly used for cutting off the medium in pipelines. A gate valve is a kind of widely used valve. Generally, it is selected as the cutting device with a DN greater than or equal to 50mm, and sometimes it is also selected as the cutting device with small calibers. Gate valve has the following advantages: 1. The fluid resistance...
Some Classifications of Valves
Block valves are mainly used to block or connect the medium flow, which includes gate valves, globe valves, diaphragm valves, ball valves, plug valves, butterfly valves, plunger valves and ball plug valves. Regulating valves are mainly used to regulate the flow and pressure of the medium, which include regulating valves, throttle valves and reducing valves. Check valves are used to prevent backflows of media. Check valves have various structures. Diverter valves are used to separate, distribute or...
The First Chinese Machine Ball Valve Was Shipped Smoothly
The first Chinese ball valve of the highest head pumped storage power station was shipped smoothly. Recently, the first chinese ball valve of Changlong Mountain pumped storage power station was successfully shipped from Dongfang Electric Co., Ltd. of Dongfang Electric Group. This is also the ball valve of the highest head pumped storage unit in China. Changlong Mountian pumped storage power station is located in Tianhuangping Town and Shanchuan Town of Anji County, Zhejiang Province, China....
The First Chinese Machine Ball Valve Was Shipped Smoothly Read More »
Advantages & Disadvantages of Ball Valves
A valve is a mechanical device that controls the flow, flow direction, pressure and temperature of the flowing fluid medium. It is the basic component of the pipeline system. Then, let's learn about the ball valve as well as its advantages and disadvantages. A ball valve is evolved from a plug valve. Its opening and closing parts are like a ball. The ball is rotated by 90 degrees around the axis of valve stems to achieve the purpose of opening and closing. A ball valve is...
Working Principles of Ball Valves
The opening and closing part of a ball valve is a ball with a circular channel, which rotates around the axis perpendicular to the channel. The ball rotates with the valve stem to achieve the purpose of opening and closing the channel. Ball valves can be closed with only 90 degree rotations and a small torque. According to the requirements of the operating conditions, different driving devices can be assembled to form a variety of different control methods of ball valves such as electric...
Intelligentized Telescopic Frictionless Ball Valve Has Been Put into Use
The intelligentized telescopic frictionless ball valve, one new valve product, has been put into use, which can improve the safety of oil and gas pipelines. It was learned from the Sixth Academy of Aerospace Science and Technology Group that an intelligentized telescopic frictionless ball valve was jointly developed with South China Branch of Academy and Sinopec Sales. And it was put into use, marking that China has achieved new progress in oil and gas pipeline innovation ability. Compared...
Intelligentized Telescopic Frictionless Ball Valve Has Been Put into Use Read More »
Notes and Ways to Prolong the Service Life of Ball Valves
The disc of the ball valve is like a globe. This is a kind of valve which is opened and closed by rotating the center of the valve body. It is suitable for cutting off water flow and changing the distribution of water flow on the pipeline with low pressure and small diameters. Notes for installation 1. There should not be metal debris, fiber, grease (except for the specified items), dust, other impurities and foreign matters during installation. They are not allowed to adhere...
Notes and Ways to Prolong the Service Life of Ball Valves Read More »
The Reason for Fierce Valve Competition in China
Valve is a product with low margin, but its market is very competitive in China. In terms of the distribution on the valve market, it is mainly based on the construction of project. Valves are mainly used for petrochemical industry, power sector, metallurgy sector, chemical industry and urban construction department. The main applications of petrochemical industry are API standard gate valves, globe valves and check valves. High pressure power station gate valves, globe valves, check valves...
The Reason for Fierce Valve Competition in China Read More »
Notes for Quick Installation of Ball Valves
A ball valve in the pipeline is mainly used to cut off, distribute and change the flow direction of the medium. It only can be rotated 90 degrees, then it can be closed tightly with a small torque. In addition to pipeline parameters, the environmental conditions in which electric valves are used should be paid special attention to. As an electric actuator in an electrically operated valve is one electromechanical device, the use condition is greatly affected by the use environment. In...
Structural Analysis & Design of a New Type of Ultra-low Temperature Floating Ball Valve (Part Three)
2.1.2 Three-dimensional motion simulation In order to verify the reliability of the design and calculation of the eccentric distance of the sphere and the inclination angle of the valve seat, the SolidWorks software was used to simulate the process of assembling the sphere. Fixed the valve seat, and made the sphere move vertically up and down. As shown in Figure 7, in the process of simulating the installation of the sphere, even if the dimensions of the sphere and valve seat met...
