Needle valve features and functions
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March 02 01:06:52, 2023
Needle valve is an important part of instrumentation piping system, there are stop valves and ball valves, its function is to open or cut off the pipeline access. Needle valves have the advantages of easy installation and removal, connection and fastening, is conducive to fire prevention, explosion and pressure resistance, good sealing performance, etc., is a advanced connection valve in power plant, oil refining, chemical plant and instrumentation measurement pipeline . Needle valve sealing is good, long life, even after the sealing surface is damaged, only need to replace the vulnerable parts, you can continue to use. The needle valve should be installed so that the flow direction of the medium matches the direction of the arrow on the valve body. Manual shut-off valve, ball valve can be installed in any position on the pipeline. Needle valve is a valve that can be precisely adjusted for a wide range of uses, such as flame cutting with a pitch, the knob to adjust the flame temperature is a needle valve, gauge needle valve instrumentation piping system is an important part of the system, there are Globe valve and ball valve, its function is to open or cut off the pipeline access. The role of any valve is to cut off the fluid.According to the different spool, can be divided into shut-off valve, gate valve, plug valve, ball valve, disc valve, needle valve, etc. Needle valve spool is a very Sharp cone, like a needle inserted into the seat, hence its name.Pattern valve than other types of valve to withstand greater pressure, good sealing performance, it is generally used for smaller flow, higher pressure Of the gas or liquid medium seal needle valve type and pressure gauge with the use of the most appropriate.General needle valve are made of threaded connections.