Use and performance specifications of the inverted plug oil lubrication plug valve Use a, the product is mainly used for gas, liquid medium pipe to do the switch, connect or cut off the media flow, not suitable for regulating the media flow. With a small flow resistance, long life, opening and closing labor-saving advantages. b, the scope of application: chemical, petroleum, metallurgy, papermaking, pharmaceutical and other industries. Flip - flighted oil stopcock performance specifications