Stopcock classification
Plug valves according to the structure can be divided into tight plug valves, self-sealing plug valves, plug valves and plug-type plug valve four. Divided by channel form, can be divided into straight-through plug valves, three-way plug valves and four-way plug valves three. Three-way and four-way stopcock suitable for changing the direction of media flow or media distribution of the occasion. In accordance with the requirements of the operating conditions, the choice of soft-sealed bushing or soft seal, hard seal lift plug valve.
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