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Hard sealed wafer butterfly valve
A safety relief valve, also known as a safety relief valve, is an automatic pressure relief device driven by medium pressure. According to different usage scenarios, it can be used as both a safety valve and a relief valve. Taking Japan as an example, there are relatively few clear definitions for safety valves and relief valves. Generally, safety devices used for large energy storage pressure ves...
Gate valve is a common type of valve, whose main function is to control the flow of fluid medium by opening or closing the gate. Gate valves are usually used on pipelines or equipment that require cutting off or intercepting fluid media, and can be used to control the flow of various media such as liquids, gases, and vapors. The main functions of gate valves include: 1. Cut off fluid flow: Gate va...
In high demand applications, cut-off requirements are often required for regulating valves, so the cut-off function is an important functional and internal quality indicator of regulating valves (see relevant information for the classification and standards of cut-off levels). In on-site use, faults such as poor shut-off of the regulating valve and large leakage often occur. Except for the increas...
A safety relief valve, also known as a safety relief valve, is an automatic pressure relief device driven by medium pressure. According to different usage scenarios, it can be used as both a safety valve and a relief valve. Taking Japan as an example, there are relatively few clear definitions for safety valves and relief valves. Generally, safety devices used for large energy storage pressure ves...
Working principle of pressure reducing valve 1) From the perspective of fluid mechanics, a pressure reducing valve is a throttling element that can change local resistance, that is, by changing the throttling area, the flow rate and fluid kinetic energy change, causing different pressure losses, and thus achieving the purpose of pressure reduction. It relies on the adjustment of the control and ad...
Pipe threads are mainly used for connecting pipes, making their internal and external threads fit tightly. There are two types: straight pipes and tapered pipes. The common types of pipe threads include NPT, PT, G, etc. The common types of pipe threads include NPT, PT, G, etc. (1) NPT is the abbreviation for National (American) Pipe Thread, which belongs to the American standard of 60 degree taper...
Check valves may be the most easily misunderstood valve in history. If you mention check valves to most factory personnel, the typical reaction is "they don't work.". In fact, these personnel are likely to have removed internal components or refurbished the system to avoid using check valves. In other words, these valves may be the least popular valves currently in use. This article will explore t...
Ball valve and plug valve belong to the same type of valve, with only its closing part being a sphere. The sphere rotates around the centerline of the valve body to achieve opening and closing. Ball valves are mainly used in pipelines to cut off, distribute, and change the flow direction of the medium. Ball valve is a new type of valve widely used in recent years, which has the following advantage...
1、 Working principle of check valve Check valve refers to a valve that automatically opens and closes the valve disc by relying on the flow of the medium itself to prevent medium backflow. It is also known as a check valve, one-way valve, backflow valve, and backpressure valve. Check valve is an automatic valve that mainly functions to prevent medium backflow, prevent pump and drive motor reversal...
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