Rotary Unions | Swivel Joints

Rotary Unions and Swivel Joints | Fixed, Stationary Source

Rotary unions are used to transfer media from a stationary source to rotating machinery. Swivel joints are used for connecting fixed pipes with rotating pipes, fixed pipes with linear action pipes, and linear action pipes with rotating pipes. Typical transfer media for rotary unions and swivel joints include water, air, hydraulic oil, steam, hot oil, sour gas, coolant, and MQL.

LPR Global’s rotary unions and swivel joints are produced in South Korea at an ISO9001 certified facility. Joints are designed to meet ABS, DNV, DHV high pressure, and DNV welding standards.

The list of clients for rotary and swivel joints includes Daewoo Shipbuilding & Marine Engineering, Samsung Heavy Industries, Hyundai Heavy Industries, POSCO Steel, NEXTEEL, DSME, TSC Group, LG, NEXEN Tire, and KIA Motors.

Rotary Unions Overview

Custom and standard rotary couplings are used to transfer liquids, air, and gases while rotating or swiveling from a stationary source to and from rotating machinery. Whether you require a single passage or a multiple passage rotary joint, we are able to supply standard and custom-made rotary unions for your specific application.

The advantage of a multiple port rotary union is having an option to transfer more than one type of fluid medium through a single rotary coupling.

Some of the applications that we cover are rotary unions for tooling machines, automotive jigs, industrial machinery, and industrial plants.

Sealing options include silicon-carbide, spherical, mechanical, and balanced sealing options. Using a balanced seal guarantees low friction during high speed rotation and high pressure operations which makes this type of seal ideal for offshore, chemical, and marine applications.

We supply a wide series of rotary joints specifically designed for high speed, high pressure, and high or low temperature operations. Customized extra high pressure models for hydraulic expanding shaft rotary joints and high pressure rotary unions for pressures over 15,000 PSI are also available.

Swivel Joints | Industrial Grade Pressure, Media

Swivel joints are used to connect fixed or stationary parts to other rotating parts or angled hoses. We offer 10 distinct series of swivel joints designed for various media, pressure, and industries ranging from chemical, food, wastewater treatment, offshore, marine to general metal.

Rotary Unions | Swivel Joints Model Overview

Rotary Union Application Examples | Rotary Couplings

Single Passage Joint

• For smaller size rotating
• Cooling and heating media

Duplex, Stationary Passage Syphon

• Media: Water, hot oil, steam
• For increasing heat exchange
• For rotating roll and drum
• Media in and out at the same end

Duplex, Rotary Passage Syphon

• Media: Steam
• Media in and out at the same end
• Rotary syphon pipe fixed to the pipe
• For rotating roll and drum
• Media in and out at the same end

Swivel Couplings for Renewable Energy Projects | Heat, Power Control

LPR Global’s rotary joints and swivel unions are commonly used in renewable energy projects for heat transferring application as the main steam, water, air, oil flow control tool. Projects include solar thermal, hydroelectric and wave power, industrial process heat generation, cooling and drying, and desalination.

Each of these projects requires custom joints to meet specific project needs. LPR Global is able to offer custom material, tolerances, thread, temperature, pressure requirements to meet client’s goals.

Rotary Union Product Selection | Rotary Coupling

Rotary Union 1000 Series

• Size Range:15A-80A (1/2”-3”)
• Max. Pressure: 15kg/cm2 (210 PSI)
• Max. Temperature: 180°C (360°F)
• Media: Steam, Hot oil, Water
• Low friction
• High speed operation at high temperature and pressure

Rotary Union 2200 Series

• Size Range: 6A-80A (1/8”-3”)
• Max. Pressure: 10kg/cm2 (150 PSI)
• Max. Temperature: 100°C (210°F)
• Media: Water, Air, Gas, Oil
• Balanced seal type: high speed operation at high temperature and pressure
• Silicon-carbide sealing option

Rotary Union 2400 Series

• Size Range (bore): ⌀200-⌀300
• Max. Pressure: 30kg/cm2 (430 PSI)
• Max. Rotation: 1RPM
• Max. Temperature: 40°C (104°F)
• Media: Water
• For continuous ship unloader crane

Rotary Union 3000 Series

• Size Range: 15A-80A (1/2”-3”)
• Max. Pressure: 15kg/cm2 (210 PSI)
• Max. Rotation Speed:
o 15A-25A: 300RPM
o 32A-80A: 150 RPM
• Max. Temperature: 220°C (420°F)
• Media: Steam
• Spherical sealing
• Non-lubrication type

Rotary Union 3200 Series

• Size Range: 15A-80A (1/2”-3”)
• Max. Pressure: 15kg/cm2 (210 PSI)
• Max. Rotation Speed:
o 15A-25A: 300RPM
o 32A-80A: 150 RPM
• Max. Temperature: 220°C (420°F)
• Media: Hot oil
• Spherical sealing

Rotary Union 3700 Series

• Size Range: 15A-80A (1/2”-3”)
• Max. Pressure: 15kg/cm2 (210 PSI)
• Max. Rotation Speed:
o 15A-25A: 300RPM
o 32A-80A: 150 RPM
• Max. Temperature: 220°C (420°F)
• Media: Steam, Hot oil
• Spherical sealing
• Non-lubrication type

Rotary Union 4000 Series

• Size Range: 50A-150A (2”-6”)
• Max. Pressure: 15kg/cm2 (210 PSI)
• Max. Rotation Speed:
o 50A-100A: 300RPM
o 125A-150A: 150 RPM
• Max. Temperature: 220°C (420°F)
• Media: Steam, Hot oil
• Low friction / High speed rotation
• Spherical sealing
• Non-lubrication type

Rotary Union 5000 Series

• Size Range: 10A-40A (2”-6”)
• Max. Pressure: 140kg/cm2 (2000 PSI)
• Max. Rotation Speed: 2000 RPM
• Max. Temperature: 80°C (180°F)
• Media: Hydraulic oil
• Labyrinth sealing structure

Rotary Union 6000 Series

• Max. Air Pressure: 10kg/cm2 (150 PSI)
• Max. Rotation Speed: 250 RPM
• Max. Temperature: 100°C (210°F)
• Media: Air, Hydraulic oil
• Low speed rotation
• For slit line, steel press automation line

Rotary Union 6000 Series Hydraulic Oil

• Max. Air Pressure: 10kg/cm2 (150 PSI)
• Max. Hydraulic Pressure: 210kg/cm2 (3000 PSI)
• Max. Rotation Speed: 250 RPM
• Max. Temperature: 100°C (210°F)
• Media: Air, Hydraulic oil
• Low speed rotation

Rotary Union 6000 Series Low Speed Rotation

• Max. Air Pressure: 10kg/cm2 (150 PSI)
• Max. Hydraulic Pressure: 140kg/cm2 (2000 PSI)
• Max. Rotation Speed: 250 RPM
• Max. Temperature: 100°C (210°F)
• Media: Air, Hydraulic oil
• Multi-level index table mounted with air/oil hydraulic machine
• Multi port unions are available

Rotary Union 6000 Series Multiple Port

• Max. Air Pressure: 10kg/cm2 (150 PSI)
• Max. Hydraulic Pressure: 140kg/cm2 (2000 PSI)
• Max. Rotation Speed: 250 RPM
• Max. Temperature: 100°C (210°F)
• Media: Air, Hydraulic oil
• Multi-level index table mounted with air/oil hydraulic machine
• Special seal for long and stable service life

Rotary Union 6000 Series Coolant

• Max. Coolant Pressure: 70bar (1000 PSI)
• Max. Rotation Speed: 12000/min (12000 RPM)
• Max. Temperature: 80°C (180°F)
• Media: Coolant, Hydraulic oil
• For high speed machining centers

Rotary Union 6000 Series 20A

• Max. Coolant Pressure: 105bar (1520 PSI)
• Max. Rotation Speed: 20000/min (20000 RPM)
• Max. Temperature: 80°C (180°F)
• Media: Coolant, Hydraulic oil
• For high speed machining centers

Rotary Union 6000 Series 30A

• Max. Coolant Pressure: 105bar (1520 PSI)
• Max. Rotation Speed: 30000/min (30000 RPM)
• Max. Temperature: 80°C (180°F)
• Media: Coolant, Hydraulic oil
• For high speed machining centers
• No ball bearing configuration

Rotary Union 6000 Series 12A

• Max. Coolant Pressure: 70 bar (1000 PSI)
• Max. Rotation Speed: 12000/min (12000 RPM)
• Max. Temperature: 80°C (180°F)
• Media: Coolant, Hydraulic oil
• For high speed spindle and gundrill

Rotary Union 6000 Series 15A

• Max. Coolant Pressure: 105 bar (1520 PSI)
• Max. Rotation Speed: 15000/min (12=5000 RPM)
• Max. Temperature: 80°C (180°F)
• Media: Coolant, Hydraulic oil
• For high speed spindle and gundrill

Rotary Union 6000 Series Multiple Port

• Max. Air Pressure: 10kg/cm2 (150 PSI)
• Max. Rotation Speed: 1000 RPM
• Max. Temperature: 100°C (210°F)
• Media: Air
• Mechanical seal
• For tire mold and press clutch

Rotary Union 6000 Series 10A Dual Port

• Max. Air Pressure: 10kg/cm2 (150 PSI)
• Max. Rotation Speed: 1000 RPM
• Max. Temperature: 100°C (210°F)
• Media: Air
• Mechanical seal
• Low friction at high speed rotation
• For tire mold and press clutch

Rotary Union 6000 Series 10A Duoflow

• Max. Air Pressure: 10kg/cm2 (150 PSI)
• Max. Hydraulic Pressure: 70 kg/cm2 (1000 PSI)
• Max. Rotation Speed: 3000 RPM
• Max. Temperature: 100°C (210°F)
• Media: Air, Hydraulic oil
• Mechanical seal
• For dual action hydraulic oil cylinder

Rotary Union 7200 Series

• Max. Water Pressure: 15kg/cm2 (210 PSI)
• Max. Rotation Speed: 100 RPM
• Max. Temperature: 100°C (210°F)
• Media: Water
• For continuous casting line cylinders

Rotary Union 8000 Series

• Max. Shaft Size: 200mm (8”)
• Max. Air Pressure: 10kg/cm2 (150 PSI)
• Max. Hydraulic Pressure: 140kg/cm2 (2000 PSI)
• Max. Rotation Speed: 180 RPM
• Max. Temperature: 100°C (210°F)
• Media: Air, Hydraulic oil
• Around the shaft rotary joint

Choose from our wide range of standard design rotary unions and swivel joints or customized solutions to meet your exact project specific requirements for air, fluid, and gas transfer.