The Single-Passage Rotary Unions 2200 series has been designed to handle higher pressures and lower RPM’s. Talco, Inc. offers a unique design that incorporates the use of a backup "O" ring and filled Teflon Slipper Seals. This outstanding single passage rotary union design results in a prolonged product life and unsurpassed efficiency and reliability over standard "O" ring designs.

The recommended operation specifications for the 2200 Series of Single-Passage Rotary Unions in American Units is for a Maximum Air Pressure of 200 PSI, a Maximum Vacuum of 28" Hg, Hydraulic Pressure of 5000 PSI, a Maximum Temperature of 400 Degrees Fahrenheit and a Maximum Speed of 400 RPM.

Metric Units would be a Maximum Air Pressure of 14 bar, Maximum Vacuum of 90 kPa, Maximum Hydraulic Pressure of 344 bar, Maximum Temperature of 200 Degrees Celsius and a Maximum Speed of 400 RPM. To prolong the life of the single passage rotary union, it is recommended to avoid operating at both Maximum Pressure and Maximum Speed at the same time.

All Single-Passage Rotary Unions in the 2200 Series are available with options such as NPT, BSP, SAE or Metric Threads, Right- or Left-Hand Thread on Rotor. You have a choice of a Steel Rotor with either an Aluminum or Steel Housing. All Stainless Steel Construction, to provide outstanding corrosive deterrent, is available upon request.

Single-passage rotary union models are available in both American and Metric Units in a wide variety of sizes. All models are CAD and RFQ Interface Enabled. If your size requirements are not listed, sizes can be custom made to meet your specifications and needs. Contact our experienced sales staff to discuss customization or for answers to any of your Single-Passage Rotary Union questions.
Unit of Measure


Dimension A (Rotor Thread)

N/A 5/8"-18 S.T.

Dimension B (Housing Thread)

N/A 1/4" NPT

Dimension C

N/A 1 1/2 in

Dimension D

N/A 3 1/8 in

Dimension F

N/A 3/8 in


N/A All Stainless Steel Construction upon Request NPT, BSP, SAE or Metric Threads Right or Left Hand Thread on Rotor Steel Rotor with either an Aluminum or Steel Housing

Recommended Operating Specifications

Max. Air Pressure

N/A 200 psi

Max. Vacuum

N/A 28 inHg

Max. Hydraulic Pressure

N/A 5000 psi

Max. Temperature

N/A 400 ºF

Max. Speed

N/A 400 rpm