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API 16A Hydraulic Connection Union 3 1/16" 4 1/16" 5 1/8"

API 16A Hydraulic Connection Union 3 1/16" 4 1/16" 5 1/8"

  • API 16A Hydraulic Connection Union 3 1/16" 4 1/16" 5 1/8"
API 16A Hydraulic Connection Union 3 1/16" 4 1/16" 5 1/8"
Product Details:
Place of Origin: CHINA
Brand Name: ATO
Certification: API 16A
Payment & Shipping Terms:
Packaging Details: wooden box
Payment Terms: T/T, L/C
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Detailed Product Description
Temperature -29℃~121℃: -29℃~121℃ Specification Level: PSL3
Nominal Bore: 3 1/16", 4 1/16", 5 1/8" Rated Pressure: 69.0 MPa~103.5 MPa(10,000 Psi~15,000 Psi)
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API 16A Hydraulic Connection Union


3 1/16" Hydraulic Connection Union


4 1/16" Hydraulic Connection Union

API 16A 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


About us:



Xi’an ATO International Co., Ltd. was founded in 2008, belong to ATO Group , which is located in Xi'an City, Shaanxi Province . We engaged in import and export of oil rig machine equipment and spares trading, though many years development,we have become appointed excellent trade supplier of large-scale oil companies domestic and abroad.


Our company mainly supplies products including F-series mud pump spares, solid control spares , wellhead tools spares, rig & fracturing truck spares and so on. Relying on many years marketing experience and excellent quality-service, ATO group have reached the wide recognition and good reputation, at the same time we make the friendly cooperation agreement with many famous domestic factories. Company mainly provides the BOMCO, SJ RG brand reliated products, which confirm to American API standards and strictly adwhere to the ISO9001 quality management standards, the products had been exported to the United States, Brazil, Russia, Egypt, Iran, Iraq and Kazakhstan countries and regions etc.
We are looking forward to extensive exchanges and cooperation with possible partners , we warmly welcome customers domestic and abroad to visit and patronize.



Contact Details

Contact Person: Jack Yang

Tel: 0086 18291452987

Send your inquiry directly to us
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