•  No need to replace BOP during drilling.

•  Mandrel casing hanger designed with mud circle groove.

•  Equipped with emergency slip to avoid casing being locked during lowering casing and mandrel casing hanger not at right position.

•  Hanging casing and cement, then install seal assembly. The structure of hanging and sealing can avoid hanging casing and damaging sealing element during cement, and can repair and replace sealing element conveniently.

•  Elastic circlip lock hanger automatically to make seal performance reliable.

•  Apply to all kinds of casing and tubing program.

•  Working Pressure: 2000PSI～20000PSI

•  Working Medium: oil、natural gas、mud and gas containing H2S、CO2

•  Working Temperature: -46°C～121°C（Class LU）

•  Material Class: AA、BB、CC、DD、EE、FF、HH

•  Specification level: PSL1-4

•  Performance Requirement: PR1-2