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The angle control valve is a single-seated valve with a special valve body structure, suitable for specific piping and flow requirements, and the inner side of the valve body is streamlined. The angle control valve is specially designed for coking hydrocarbons. The streamlined passage in the valve body helps prevent solids from accumulating on the inner wall. Angle control valves have been used incorrectly under high-pressure differential conditions in the past. The basic idea is to keep the turbulence generated during the throttling process away from the internal parts of the valve, but doing so will cause energy conversion in the pipeline behind the valve, often resulting in serious Pipeline vibration and noise problems.
Another disadvantage is that in most applications, the streamlined flow path will form a relatively high-pressure recovery. High-pressure recovery means that the fluid medium has a low cavitation coefficient and severe cavitation at low or medium pressure differences. In addition to the special applications mentioned above, the angle-type regulating valve can also be used in occasions where the piping arrangement does not allow the installation of direct valves and can be used to control certain abrasive fluids, such as abrasive catalyst materials. In the latter case, the material is discharged from the discharge pipe (side in and bottom out) to prevent abrasion inside the valve body. If cavitation and flashing are unavoidable, an angle-type control valve can be arranged to directly discharge the material into the container to avoid damage to the valve.
Another advantage of the angle-type control valve is that it has a self-drain structure when dealing with some dangerous fluids similar to radioactive liquids, which is very important.
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