What are the different types of rotary unions?

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What are the different types of rotary unions?
Visit What are the different types of rotary
unions?
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• Rotary unions or swivel joints are mechanisms
  used to transfer fluid under vacuum conditions or
  pressure, from a rotating outlet or stationary
  inlet. It preserves and isolates the fluid
  connection. They are also referred to as rotary
  joints, rotary couplings or swivel joints, or
  fluid swivels.
• This industrial equipment is engineered to endure
  a wide range of temperatures, speeds, and
  pressures for a variety of environments and
  working conditions.
• The typical function of a rotary union is to
  connect to input, and it is secured onto another
  mechanism while allowing a moving connection to
  be preserved in the process.
• Rotary unions are used in a wide spectrum of
  applications whether they are miniature rotary
  unions for the semiconductor industry, to they
  are large and heavy-duty rotary unions for
  industrial usage.
• In industries like oil industries, rotary unions
  for hydraulic oil are commonly used.

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Types of Rotary Unions

• What are the different categories of rotary
  unions? Lets know some of them. Each of them has
  different properties and specialties. Lets know
  about a few of them in this blog.

1. 1109-010-165 Rotary Union

• This is a special rotary union that uses patented
  pop-off technology. It allows unlimited dry
  running without media pressure.
• Because of its full-flow design, there are no
  obstructions to trap chips or debris. Because of
  their bearing support with threaded rotors, you
  get easy installation.
• In these unions, labyrinth systems and large
  vents protect ball bearings. These balanced
  mechanical seals are made from silicon carbide.
  Therefore, they ensure a long life even under
  difficult operating conditions.

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• Their anodized aluminum housing that resists
  corrosion.

2. 1129-039-301 Rotary Union

• These patented unions use pop-off technology.
  Therefore, they allow unlimited dry running
  without media pressure. Their full-flow design
  does not have any obstructions to trap chips or
  debris. These balanced mechanical seals made from
  silicon carbide ensure long life under difficult
  operating conditions as well. They are also made
  from anodized aluminum housing resists corrosion.

3. 2620-200-252 Rotary Union

• These unions have two independent passages. They
  are useful for applications such as clamping,
  under-clamping, cooling, work-piece sensing, and
  so on. They offer long life and reduced torque
  even at maximum pressure.

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4. 1129-016-301 Rotary Union

• These unions have a single passage for coolant or
  MQL. They also have patented pop-off technology,
  which allows unlimited dry running without media
  pressure. Their design is full-flow and there is
  no obstruction 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.

5. 1109-040-188 Rotary Union

• These unions also have a single passage for
  coolant or MQL. They use patented pop-off
  technology, which allows unlimited dry running
  without any media pressure. They have a full-flow
  design that does not have any obstruction to trap
  debris or chips. They are bearing-supported with
  threaded rotosr, which ensures easy installation.
  These are different types of air rotary
  unions. While deciding the best type, you need to
  analyze and understand the type of application.
  Before deciding on a particular type of union,
  you have to see the application type.

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• Also Read

• Difference between Rotary Joints and Rotary Unions

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