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The plug body of tapered plug valve is in tapered shape, which makes up of a sealing pair with the tapered hole surface of valve body. The leakage gap for sealing pair of tapered plug valve can be adjusted by press the valve plug into valve seat. When valve plug close contact to valve body, valve plug can rotate too, or lift it and rotate 90 degree from valve seat before rotating,and then press to seal.
The plug valve is a closing or plunger-shaped rotary valve that opens or closes by opening or closing the passage opening on the valve plug to the passage opening on the valve body by rotating 90 degrees.
Its valve plug can be cylindrical or conical in shape. In a cylindrical valve plug, the passage is generally rectangular; in a tapered valve plug, the passage is trapezoidal. These shapes make the structure of the plug valve light. It is most suitable for use as a cutting and closing medium and a shunt, but it can also be used for throttling depending on the applicable properties and the erosion resistance of the sealing surface.
Nominal Bore: 1"~3"
Working Pressure : 2000psi ~ 15000psi
Temperature Level: –75° F ~ +250° F
Body Material: AA、BB、CC、DD、EE、FF、HH
Specification Level: PSL1~PSL3G
Performance Level: PR1~PR2
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