... 000 ~ 15,000psi, 2 - 3 inch, AA-EE, PSL1-4, compact structure, easy maintenance, low torque, and rapid operation Plug valve ... cementing and fracture service, also selected for HP fluid control system. It is excellent for its compact structure, easy maintenance, low torque, ... , and seal rings are inlaid into outer of wear bush for good seal performance.Main technical parametersWorking Pressure: 2,000 ~ ...