Choke/ Kill line collet connector is one of the key equipment for offshore drilling, mainly used choke/ kill line connect or discomnect between lower BOP stack and lower marine riser assembly .Using hydraulic pressure acting against intemal anular pistons lock and unlock the connector, utilize an AX type gasket to contain pressure by forming a metal-to-metal seal. These connector provides a method for making quick and reliable connections of the choke and kill lines on a subsea BOP stack and its related lower marine riser assembly. 

Specification：

Bore: 77.8 mm (3 1/16")

Rated working pressure: 103.5 MPa (15,000 psi)

Hydraulic controlled rated working pressure: 20.7 Mpa (3,000 psi) 

Recommended Operating Chamber Working Pressure: 10.5 Mpa (1,522 psi) 

Temperature Rating: T-20/250 (-29～121℃) 

Working depth: 3048 m (10000 ft)

Working medium: 钻井液、泥浆、乙二醇等介质

Overall Dimension (O.D×Height): 515 mm × 483 mm 

Approx Weight: 520 kg