WUXI KVC-VALVE
Check valves are built using advanced technology to serve the industrial market more efficiently
In recent years, valve manufacturers have been seeking new development, hoping to make breakthroughs in the types and performance of valves to meet the increasing market demand. Based on this form, valve manufacturers are now seeking more advanced technology from multiple sources to provide higher technical support for valve production. For example, Shangzhou will consider more advanced technology applications in the production of check valves. Introducing advanced technology to improve product quality The application range of check
Working principle of globe valve
Globe valve, also called cut-off valve, is one of the most widely used valves. The reason why it is popular is that the friction between the sealing surfaces is small during the opening and closing process, it is relatively durable, the opening height is not large, and it is easy to manufacture. , easy maintenance, not only suitable for medium and low pressure, but also suitable for high pressure. The closing principle of the globe valve is to rely on the pressure of the valve rod to make the sealing surface of the disc and the sealing surface of the valve seat fit closely to prevent the flow
The installation method of pneumatic ball valve
The installation method of pneumatic ball valve is to first remove the cylinder from the valve body. First, remove the covers at both ends of the cylinder. When removing the piston, be sure to pay attention to the direction of the piston rack. Then, use external force to rotate the cylinder shaft clockwise to make the piston run to the outermost side. Then, slowly ventilate the valve closing hole and gently push the piston out with air pressure. However, this method must pay attention to slowly ventilate, otherwise the piston will suddenly spray out, which is a bit dangerous! Then remove the c
Valve lubrication maintenance operation specification and requirements
1. Prepare for valve lubrication (1) Operators should be familiar with the structure principle of the valve and site safety specifications, and should not carry dangerous goods and mobile phones when entering the operation area. (2) Be familiar with the proper wearing and use of personal safety protective equipment to ensure personal safety during operation. (3) Can correctly use fire extinguishers, effectively deal with dangerous substances in the workplace, do a good job of maintenance preparation. (4) Complete sets of special valve oiling tools, other common tool
Why do my valves keep breaking down?
The valve is the control component in the pipeline fluid conveying system, used to change the channel section and the direction of the medium flow, with diversion, cut-off, throttling, check, diversion and other functions. Valve in the use of the process, there will be a variety of failures, especially safety valve. As the ultimate protection device of the pressure vessel, a small failure can cause serious consequences! So why do valves keep failing? Is it really because of quality? Generally speaking, the valve failure is related to the number of parts that make up the valve; Secondly,
Do you know the ten best ways to prevent corrosion of metal valves?
Metal valve can be said to be the key component structure that is prone to corrosion failure in engineering equipment. Generally, the sealing surface, valve rod, diaphragm, small spring and other valve parts of metal valve are generally made of Class I materials, the valve body, valve cover and other materials are suitable for Class II or III materials, and the valves used for high pressure, highly toxic, flammable, explosive and radioactive media are made of materials with low corrosivity. Under complex working conditions such as atmosphere or solution, metal valves are not only subjec
The valve is very important! It is applied to all machinery as a flow regulating device. Valves reduce the energy in the fluid flow, but their use is essential in operations requiring limited flow. Therefore, it is very important to have a full understanding of the structure and work of various types of valves used on ships. Each type of valve has a specific function, including reducing/increasing flow, regulating pressure, starting/stopping flow, releasing pressure in the pipeline system, and controlling flow direction. The valve consists of many different parts. The firs
Principle and application of four kinds of pressure valves
Pressure reducing valve, safety valve, pressure regulating valve, pressure relief valve are all pressure valves, mainly the difference in function. The reducing valve is a valve that reduces the inlet pressure to a required outlet pressure by adjusting it, and relies on the energy of the medium itself to keep the outlet pressure stable automatically. The characteristic of the valve is to keep the outlet pressure and temperature within a certain range when the inlet pressure is constantly changing. Often used in domestic water supply, fire water supply and other industrial water supply s
Five key points for valve installation
1 Direction and position Many valves are directional For example, stop valve, throttle valve, pressure reducing valve, check valve, etc., if installed upside down, will affect the service effect and life (such as throttle valve), or will not work at all (such as pressure reducing valve), or even cause danger (such as check valve). For general valves, there are direction signs on the valve body. If not, it should be correctly identified according to the working principle of the valve. The valve chamber of the stop valve is asymmetric from left to right. The fluid should pas
Gate valve installation Gate valve, also known as gate valve, is a kind of gate plate control pipeline opening and closing, by changing the cross section to adjust the pipeline flow and pipeline opening and closing valve. Gate valves are used for fully open or fully closed pipeline operation in fluid medium. Gate valve installation generally has no directional requirements, but can not be inverted. Installation of stop valve Globe valve is a valve that uses a disc to control the opening and closing of the valve. By changing the clearance between the disc and the seat, that
Key points of valve inspection and installation
Inspection before valve installation ① Carefully check whether the valve model and specification meet the drawing requirements. ② Check whether the valve rod and valve disc can be opened flexibly, and whether they are stuck or skewed. ③ Check whether the valve is damaged and whether the thread of threaded valve is correct and complete. ④ Check whether the connection between valve seat and valve body is firm, and the connection between valve disc and valve seat, valve cover and valve body, and valve rod and valve disc. ⑤ Check whether the valve gaske
Description of valve selection
1 Selection of gate valve Generally, gate valve shall be preferred. In addition to steam, oil and other media, gate valves are also suitable for media containing granular solids and high viscosity, and for valves in vent and low vacuum systems. For the medium with solid particles, the gate valve body shall be equipped with one or two purging holes. For low temperature medium, low temperature special gate valve shall be selected. 2 Description of selection of stop valve The stop valve is applicable to the pipeline with less strict requirements on fluid resistance, that is,
While understanding and mastering the steps of valve selection, we should also further understand the basis of valve selection. (1) The use, working conditions and control mode of the selected valve. (2) the nature of the working medium: working pressure, working temperature, corrosion performance, whether it contains solid particles, whether it is toxic, whether it is flammable and explosive, and the viscosity of the medium. (3) Requirements for valve fluid characteristics: flow resistance, discharge capacity, flow characteristics, sealing grade, etc. (4) Installat
Valve characteristics and selection
Valves generally have two characteristics: service characteristics and structural characteristics. 1 Usage Characteristics It determines the main performance and range of use of the valve, including: Valve type (closed valve, regulating valve, safety valve, etc.); Product type (gate valve, globe valve, butterfly valve, ball valve, etc.); Main parts of the valve (valve body, valve cover, stem, valve plate, sealing surface); Valve transmission mode, etc. 2 Structural Characteristics It determines some structural characteristics of the valve
In fluid piping systems, valves are control elements whose primary functions are to isolate equipment from piping systems, regulate flow, prevent backflow, and regulate and discharge pressure. The valve can be used to control the flow of air, water, steam, all kinds of corrosive media, mud, oil, liquid metal, radioactive media and other fluids. Because it is very important to choose the best valve for the piping system, it is also important to understand the characteristics of the valve and the steps and basis for selecting the valve. Valves can be divided into two catego
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