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Duff Norton 750116C Stainless Steel Rotary Union 1-1/4" NPT

Special Price $771.97 Regular Price $856.88
In stock
SKU
750116C
The Duff Norton 750116C Stainless Steel Rotary Union features a sealed connection that transfers air, water, steam, or hot oil between static piping and rotating equipment without interrupting fluid flow. Offering a 1-1/4-inch NPT connection and stainless steel construction it resists corrosion while maintaining a consistent seal under continuous rotation. Installed on rotating machinery, it operates with HVAC systems and other industrial equipment where fluid transfer is required through moving components. Its precision sealing and bearing design supports uninterrupted media flow while minimizing leakage during continuous operating conditions.
Manufacturer:
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Specifications

  • Type: Rotary Union
  • Size: 1-1/4 inch
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Customer Questions
What maintenance is required for the Duff Norton 750116C Rotary Union?

Regularly inspect the union for leaks, corrosion, or wear on seals. Clean the surfaces and check for proper lubrication if applicable. Ensure all connections are tight and aligned. Always depressurize the system before performing maintenance.

What are common issues with the Duff Norton 750116C Rotary Union?

  • Leaks from worn or damaged seals
  • Corrosion on metal surfaces
  • Misalignment causing vibration or noise
  • Restricted fluid flow due to debris

Installation Steps

Step 1: Turn off all system pressure and ensure the equipment is safely de-energized.

Step 2: Remove any existing rotary union from the shaft or mounting location.

Step 3: Clean the mounting surfaces and shaft to remove debris or corrosion.

Step 4: Slide the new stainless steel rotary union into place, aligning ports correctly.

Step 5: Secure the union with the recommended fasteners, avoiding over-tightening.

Step 6: Restore system pressure and rotate slowly to check for leaks and smooth operation.