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  • Selection of chemical valves

    Selection of chemical valves

    Key points of valve selection 1. Clarify the purpose of the valve in the equipment or device Determine the working conditions of the valve: the nature of the applicable medium, the working pressure, the working temperature and the control method of operation, etc. 2. Correctly choose the type of ...
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  • Selection and Use of Pneumatic Control Valves in Chemical Valves

    Selection and Use of Pneumatic Control Valves in Chemical Valves

    With the advancement of China’s technological level, the automated valves produced by ChemChina have also been implemented swiftly, which can complete the accurate control of flow, pressure, liquid level and temperature. In the chemical automatic control system, the regulating valve belongs...
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  • Material selection of chemical valves for all-welded ball valves

    Material selection of chemical valves for all-welded ball valves

    Corrosion is one of the hazards of chemical equipment headaches. A slight carelessness can damage the equipment, or cause an accident or even a disaster. According to relevant statistics, about 60% of the damage of chemical equipment is caused by corrosion. Therefore, the scientific nature of the...
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  • Types and selection of metal valves commonly used in chemical plants

    Types and selection of metal valves commonly used in chemical plants

    Valves are an important part of the pipeline system, and metal valves are the most widely used in chemical plants. The function of the valve is mainly used for opening and closing, throttling and ensuring the safe operation of pipelines and equipment. Therefore, the correct and reasonable selecti...
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  • Principles for the selection of chemical valves

    Principles for the selection of chemical valves

    Types and functions of chemical valves Open and close type: cut off or communicate the flow of fluid in the pipe; regulation type: adjust the flow and velocity of the pipe; Throttle type: make the fluid produce a great pressure drop after passing through the valve; Other types: a. Automatic openi...
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  • How much do you know about check valves?

    How much do you know about check valves?

    1. What is a check valve? 7. What is the principle of operation?    Check valve is a written term, and is generally called a check valve, check valve, check valve or check valve in the profession. Regardless of how it is called, according to the literal meaning, we can roughly judge the role of...
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  • What does the arrow on the valve mean

    What does the arrow on the valve mean

    The direction of the arrow marked on the valve body indicates the pressure bearing direction of the valve, which is generally used by the engineering installation company as the medium flow direction symbol to cause leakage and even cause pipeline accidents;    The pressure bearing direction re...
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  • Why should the stop valve have low inlet and high outlet?

    Why should the stop valve have low inlet and high outlet?

    Why should the stop valve have low inlet and high outlet?   stop valve, also known as stop valve , is a forced-sealing valve, which is a kind of stop valve . According to the connection method, it is divided into three types: flange connection, thread connection, and welding connection.    Ch...
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  • Installation method of silent check valve

    Installation method of silent check valve

             Silent check valve: The upper part of the valve clack and the lower part of the bonnet are processed with guide sleeves. The disc guide can be freely raised and lowered in the valve guide. When the medium flows downstream, the disc opens by the thrust of the medium. When the medium stops...
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  • What are the types of valves?

    What are the types of valves?

           valve is a mechanical device that controls the flow, direction, pressure, temperature, etc. of the flowing fluid medium. The valve is a basic component in the pipeline system. Valve fittings are technically the same as pumps and are often discussed as a separate category. So what are the t...
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  • Advantages and disadvantages of plug valves

    Advantages and disadvantages of plug valves

    There are many types of valves, and each has its own advantages and disadvantages. Here are five major valve advantages and disadvantages, including gate valves, butterfly valves, ball valves, globe valves and plug valves. I hope to help you.   Cock valve: refers to a rotary valve with a plunge...
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  • The working principle of the exhaust valve

    The working principle of the exhaust valve

    The working principle of the exhaust valve    I often hear us talk about various valves. Today, I will introduce us to the working principle of the exhaust valve. When there is air in the system, the gas accumulates on the upper part of the exhaust valve, the gas accumulates in the valve, and t...
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