XM-230/80 rotary seal head is a rotary seal unit on wellhead, specialized for negative pressure and low pressure drilling, characterized by reliable sealing effect, ease of opration and safe service.

• XM-230/80型钻井旋转密封头是一种专用于负压、低压钻井的井口旋转密封装置,具有密封可靠、操作简单和防爆、安全等优点。