- Jun 04, 2018 -
The plug body rotates with the stem to achieve the opening and closing action. Small filler-free plug valve is also known as the plug valve "Hancock."
The plug body of the plug valve is a cone (also has a cylindrical body), with the valve body of the conical hole with the form of sealing deputy. Plug valve is the earliest use of a valve, simple structure, quick switch, small fluid resistance. Ordinary plug valve by finishing metal plug body and the direct contact between the body to seal, so poor sealing, open and close force, easy to wear, usually can only be used for low (not higher than 1 MPa) and small-caliber (less than 100 mm) of the occasion.
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