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Inverted Pressure Lubricant Plug Valves

Inverted pressure  lubricated plug valve is one type of rotary valve whose disc is one plunger that turns 90° to achieve in the valve on-off. The valve plug is cylinder or cone whose flow port is rectangle or trapezoid. Plug valve is used mostly to shut off and get through the mediums and as throttle valve sometimes. Inverted pressure lubricated plug valve is applicable to various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, power industry, etc.