Deublin’s total commitment to quality ensures that all their products are dynamically pressure tested for leakage as part of the final inspection procedure prior to despatch so that you can be assured that your rotating union is fit for purpose. Rotating Unions (also known as rotary swivels, rotary couplings, rotary joints) are precision mechanical devices used to transfer fluid from a stationary source, such as a supply pipe, into a rotating piece of machinery. Rotating Unions are used in numerous manufacturing processes to cool, heat, or transfer fluid (pneumatic or hydraulic) power.

Deublin offers one (single flow) passage unions, two (dual flow) passage unions, three (triple) passage and four passage unions.  

Rotary Unions allow the feed through of water, glycol, air, hydraulic, coolant, MQL, hot oil, steam, vacuum and a variety of other media. Rotary Unions (Joints) can be configured for installation at the end of a shaft or around-the-shaft.

Rotating unions are commonly used in a variety of industries, including machine tool, paper, plastic, hydraulic and casting and they are available with various sealing materials for even the most demanding applications. Their standard models include rotating unions for use with: water, air, oil, vacuum, coolant and steam.

One Passage yes of course
Water
Water Glycol
Air
Hydraulic
Coolant
MQL
Hot Oil
Steam
Vacuum

Two Passages
Water
Water Glycol
Air
Hydraulic
Hot Oil
Steam
Vacuum

Three Passages
Air
Hydraulic
Vacuum

Four Passages
Air
Hydraulic
Vacuum