What Does API 6A Mean for Gate and Check Valves in Oil Production?

  What Does API 6A Mean for Gate and Check Valves in Oil Production? Quick Summary: API 6A is a wellhead and tree equipment specification, not simply a pressure-rating label. For an oil-production valve project, engineers must define the equipment type, rated working pressure, temperature class, material class, Product Specification Level (PSL), performance requirement where […]