Zhengzhou Hongxin Rubber Products Co.,Ltd

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Pneumatic Union


Pneumatic Union / Air O union / Air Tube

Pneumatic union is widely used in pipeline with low pressure, large diameter, big dislocation or often removed, especially used in pipeline connection of drilling mud solid control system. The pipeline can be connected with glass steel tube, or rubber tube with joints for both ends.


  • Structure: Steel shell + air tube
  • Working conditions: -45 ¢ – 50 ¢
  • Max. seal pressure: 0.4 Mpa
  • Pneumatic recovery time after deflated: 1~3 seconds
  • Standard size: 4″, 6″, 8″, 10″, 12″, 14″, 16″


  • Achieve quick install and seal
  • The pipeline can be removed without other tools after pneumatic union deflated, adaptable and easy maintenance
  • No wrenches, bolts and nuts
  • Fast and easy make up without close alignment
  • Allows pipe expansion or misalignment without breaking the seal

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