Rotary Unions
Creating rotary motion is easy, but when air or liquids need to be transferred from a stationary supply to a rotating component for cooling, heating, lubricating or transmitting fluid power, the task becomes more complicated. This is where rotary unions come in.
A rotary union also referred to as a rotary joint or rotating joint.
Källström design and produce long life rotary unions in acid proof stainless steel for rough environments, enduring pressures up to 10 bar and temperatures up to 240°C.
Our unions are used for a safe transfer of hot oil or water, from a stationary source into a rotating part of machinery.
Rotary unions provide an interface that allows fluid media — air, steam, or liquid — to be transferred between a rotating component and a static component. They’re designed to accommodate a wide variety of media conditions, including very high and low temperatures, flows, and pressures, including vacuum applications. And unlike other fluid transfer mechanisms, rotary unions work for applications involving any combination of rotation angles, including continuous rotation in one direction.
Since 2009 we have produced high quality rotary unions for tough conditions and Källström will continue to develop, produce and sell rotary unions formally named BRK-serie. Our rotary unions are made for cold and hot water, steam condensate or oil; and the unions are designed for extremely tough conditions.
We offer a number of standard models; sizes from 28 to 130 mm. Our unions can be found in the textile, plastic, paper, steel, chemical and process industry.
One Passage
- Källströms Rotary unions have a unique design with lubricated bearings making the unions well suited for oil, water, steam condensate and aggressive media.
- Our unions are tailor made with the perfect choice of mechanical seals and O-rings.
- Operation temperatures and pressures up to 10 bar and +240°C.
- The housing and metal parts are made of acid proof stainless steel AISI 316 (SIS2343) for a long life in rough environment.
- Our solution with permanently lubricated bearings means a maintenance free operation, no lubrication is needed.
- The unions are self-supporting with sturdy bearings.
- Modular system for easy adaptation to existing equipment and a variety of operating conditions.
- The unions are easily fitted and removed, which ensures short down-time and maintenance time.
Two Passages
- Källströms Rotary unions have a unique design with lubricated bearings making the unions well suited for oil, water, steam condensate and aggressive media.
- Our unions are tailor made with the perfect choice of mechanical seals and O-rings.
- Operation temperatures and pressures up to 10 bar and +240°C.
- The housing and metal parts are made of acid proof stainless steel AISI 316 (SIS2343) for a long life in rough environment.
- Our solution with permanently lubricated bearings means a maintenance free operation, no lubrication is needed.
- The unions are self-supporting with sturdy bearings.
- Modular system for easy adaptation to existing equipment and a variety of operating conditions.
- The unions are easily fitted and removed, which ensures short down-time and maintenance time.
Repair & Service
All Källströms Rotary Joints can be refurbished, which is a great advantage both for economy and environment. Long life and durability coupled with the fact that worn out parts are replaceable makes our rotary unions very competitive and cost-effective.
We offer repair and service for all our unions at our production facility in Eslöv, Sweden. Repaired and refurbished unions are returned to the customer in a perfect good-as-new condition.
If you prefer servicing your unions in-house we offer support and cost calculations for spare parts.
Bearing units, mechanical seals and other spare parts for our standard models are always on stock.
Rotary Unions - Spare parts
When you need to repair or refurbish your Källström rotary union, we have all spare parts necessary. Contacts us for listings and costs for spare parts.
By using approved original spare parts you maintain the high quality, the reliability, durability and technical lifespan of your Källström Rotary union, and by using original spare parts you will replace and repair with the same parts that the rotary union was originally built with, which will help preserve all the functions and the precision.
The following list is an example of spare parts available, and is subject for up-dates. Please contact us for exact information regarding your specific rotary joint.
• Spareparts for rotary union with Ø48 mm shaft
• Spareparts for rotary union with Ø60 mm shaft
• Spareparts for rotary union with Ø70 mm shaft
• Spareparts for rotary union with Ø75 mm shaft
• Spareparts for rotary union with Ø85 mm shaft
• Spareparts for rotary union with Ø130 mm shaft
Above are the most common sizes of rotary unions, for additional sizes please contact:
