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Valves Article
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...
Y-shaped filters are an indispensable filtering device in pipeline systems for conveying media. Y-shaped filters are usually installed at the inlet of pressure reducing valves, relief valves, constant water level valves, or other equipment to remove impurities in the medium and protect the normal use of valves and equipment. The Y-shaped filter has the characteristics of advanced structure, low re...
Indicator light malfunction 1. Fault phenomenon: After powering on the electric actuator, it was found that the power indicator light was not on, there was no feedback from the servo board, and the signal did not act. Fault diagnosis and maintenance process: Due to the power indicator light not being on, first check if the fuse tube is open. After checking that the fuse tube is intact and consider...
Globe valve, also known as shut-off valve, belongs to the forced sealing type valve and is a type of shut-off valve. There are three types of connection methods: flange connection, threaded connection, and welded connection. The "Three Modernizations" of valves in our country once stipulated that the flow direction of globe valves should be from top to bottom, so there is directionality during ins...
leakage: Leakage is one of the common malfunctions in mechanical equipment. The main reasons for leakage are twofold: firstly, due to the results of mechanical processing, there are inevitably various defects and shape and size deviations on the surface of mechanical products. Therefore, gaps are inevitably generated at the joints of mechanical parts; Secondly, there is a pressure difference on bo...
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...
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...
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...
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...
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