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 Rotating Union Selector    Single & Two-Passage Air Unions
Rotating Union Selector > Single & Two-Passage Air Unions 
 

Single & Two-Passage Air Unions
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1500 Series Primary

3/8" Air Two Passage Unions

 (2)
  • Duoflow design
  • Self-supported rotating union
  • Flanged rotor
  • Radial housing connections
  • Low torque
  • Balanced mechanical seals
  • Full-media flow
  • Aluminum housing
  • Cast iron rotor
  • Oil cup (3-5 drops/month)

  • Seal combination: Carbon Graphite/Cast Iron

    • 1590/1579 Series Primary

    1/2" Air Two Passage Unions

  • Duoflow design
  • Self-supported rotating union
  • Flanged rotor
  • Balanced mechanical seals
  • Full-media flow
  • Aluminum housing
  • Cast iron rotor
  • Oil cup (3-5 drops/month for 1590)

  • Seal combination: Carbon Graphite/Ceramic

    • 1129 Series: Controlled Leakage Primary Image

    3/8" Air Single Passage Unions

     (3)
  • 1129 Series Bearingless "Controlled Leakage" Rotating Unions
  • Single passage for dry or lubricated air
  • Patented “pop-off” technology allows unlimited dry running without media pressure
  • Pop-off stroke of 0.7-3.0 mm compensates for thermal expansion of spindle during extended operation as well as variations in drawbar position
  • Full-flow design has no obstructions to trap chips or debris
  • Balanced mechanical seals made from silicon carbide for long life even under difficult operating conditions
  • Anodized aluminum housing resists corrosion


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