Inverted pressure balance lubricated plug valve according to ANSI is applicable to the cutting and connection of pipelines medium that aroused in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, power industry etc. It is used under nominal pressure of CLASS150-1500LBS, and works at the temperature of -29~180℃. a. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance. b. It has the structure of flip-chip balanceable pressure and light on/off operation. c. An oil groove is set between valve body and seal surface, which may infuse the seal grease to increase the sea capability. d. The materials of the parts and sizes of flanges can be configured reasonably according the actual operation condition the customer required, so as to meet the various needs of engineering.
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