Hydraulic and Pneumatic Equipment Supply | Rotating Union Supplies & Repairs - UK Supplier
At USC Universal Supplies Ltd we provide high quality rotating unions and repairs to clients across the UK at competitive prices.
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Rotating Unions

Rotating Unions, supplied & repaired, UK

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Our Service…Supply and Repair

We have had years of experience of not only supplying but also carrying out hydraulic and pneumatic equipment repair in the UK. This includes the supply and repair of rotating unions. We aim to offer an efficient and affordable service to all our customers.

Rotating Unions

Rotating unions are used to cool, heat or transfer media from a stationary input to a rotating outlet. The materials they come in are usually

  • brass
  • bronze
  • plastic
  • steel
  • stainless steel

They usually have one or more ports which range in size from 1/8 in. to 6 in.

  • Straight ports direct media flow straight through the union.
  • Elbow ports cause the media to exit at an angle from the inlet direction.

Seals are made from a variety of materials and feature o-ring and bellows-type designs. Rotating unions connect via flanges or threads and may use dual radial ball bearings to prevent side loading to seals. Flanges are rated by organizations such as the American National Standards Institute (ANSI) and the Society of Automotive Engineers (SAE). Common thread types include national pipe thread (NPT), British standard pipe (BSP), and unified coarse thread (UNC).


Specifications for rotating unions include:

  • pressure range
  • speed range
  • operating temperature
  • number of ports
  • seal type
  • dimensions
  • special features.


Rotating unions are used in the production of

  • textiles
  • clutches and brakes
  • automobiles
  • chemicals
  • paper
  • rubber and plastics
  • food and pharmaceuticals.

They move media such as compressed or vacuum air, hydraulic fluid, steam, pressurized water, chemicals, gases, and slurries or solid materials.

Rotating unions are also used to move petroleum products, gasoline, diesel, natural gas, and aviation fuel.

Universal Supplies (Clydesdale) Ltd

Please contact our office for any queries regarding the supply or repair of rotating unions and we shall be happy to help

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