gate valve gate mainly is a kind of opening and closing type, it can only be fully open/close, can't adjust and throttling. Is a kind of used for pipe opening and closing valve, control flow and transport medium parameters adjustment and the control of the attachment. A gate is, in fact, one of them. What is the specific use of gate valves and valve, advantages and disadvantages? The valve according to the function and use classification: ( 1) Truncation type, such as gate valves, globe valves, plug valves, ball valve, butterfly valve, needle valve, diaphragm valve, etc. Block valves is also called the closed valve, cut-off valve, its role is to connect or cut off the medium in pipeline. ( 2) Check valve type, such as check valve, check valve, also known as one-way valve or check valve. The check valve belong to automatic valve. Their role is to prevent the pipeline medium return of reverse pump and drive motor, and the container medium leakage. Pump suction closed bottom valve also belongs to the type of check valve. ( 3) Safety categories: such as relief valve, explosion-proof valve, accident valve, safety valve is to prevent the action of a pipe or equipment within the medium pressure than specified value, achieve the goal of safe protection. ( 4) Adjust type: if the control valve, throttle valve, relief valve, its function is to regulate parameters such as pressure and flow of the medium. ( 5) FenLiuXing: such as water distribution valve, three-way valve, steam trap, etc. It is the function of distribution, separation or mixed media in the pipeline. ( 6) Special purpose: such as pigging valve, exhaust valve, drain valve, exhaust valve, filters, etc. Gate is one of the most common open/close the valve. Of the pipeline medium available gate ( The opening and closing parts, namely the valve or valve gate, and the valve seat) Connection ( Full open) Or cut off ( Seated) 。 Don't allow used to intercept. Use should be avoided in the gently open the gate, because the flow media will accelerate the damage of the sealing surface. Gate valve advantages as follows: 1. Fluid resistance small, 2. Three smaller force required for opening and closing. Medium to no. 4. When the valve is fully open, the working medium of sealing surface erosion less than globe valves. 5. Modelling is simple, good casting process. Gate valve disadvantages: 1. Open gate size and height, the large space. 2. In the process of opening and closing, relative friction between sealing surface, easy to cause wear and tear. 3. Gate valves generally has two seal face, making it difficult to machining, grinding and maintenance. Above is the detailed introduction of gate valves and valve and its advantages and disadvantages. Through the above content, we can see there are many kinds of valves. Gate valve is a type of valve. Different valves have different USES. In any case, what the valve should be selected according to specific requirements.

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