Hydraulic Connection Union


Hydraulic connection union is designed for quick connection of BOP, stripper packer and lubricator with a hydraulic remote control system. It can effectively avoid the risk of manual operation, and protect personal safety. 

We can offer customized design as per customer requirements.


  • Remote control to ensure operational and personal safety.

  • Hydraulic control allows quick connection and response.

  • Safe self-lock device can effectively avoid slip to move backwards, causing failure.

  • Tapered seal bore facilitates connection, saving operating time.

  • Various end connections (flange or union) are available to meet different requirements.

  • Dual-seal design in the connection ensures safe and reliable sealing 


Rated Pressure 69.0 MPa~103.5 MPa(10,000 psi~15,000 psi)
Temperature -29℃~121℃
Nominal Bore 3 1/16", 4 1/16", 5 1/8"
Specification Level PSL3
Working Medium Drilling fluid, frac acidizing fluid, oil, gas (H2S), water
Standard API 16A / NACE MR0175