MEDIUM

In industrial machinery, the type of medium being transferred plays a critical role in determining the design and performance of a rotary union. Different media—such as compressed air, water, steam, thermal oil, or hydraulic fluid—require specific sealing materials, internal structures, and pressure tolerances to ensure safe and reliable operation.

Our company specializes in designing and manufacturing rotary unions optimized for different industrial media, ensuring stable fluid transfer between stationary pipelines and rotating equipment.

As a professional manufacturer exporting rotary unions worldwide, we provide high-precision rotary joint solutions that match or replace many leading international products while offering competitive pricing and flexible customization.

This category page organizes our rotary union products according to working medium, helping engineers, maintenance teams, and procurement managers quickly identify the most suitable solution for their application.

Our Rotary Union Solutions by Medium

We provide rotary unions specifically engineered to handle a wide variety of industrial media. Below are the main categories available on this page.

Air/Pneumatic Rotary Unions

We engineer our air rotary unions to transfer compressed air or vacuum into rotating components efficiently. These rotary unions are essential for modern industrial automation and pneumatic control systems.

Water and Coolant Rotary Unions

We design our water rotary unions to supply cooling water or coolant to rotating equipment reliably.

Steam Rotary Unions

Steam rotary unions handle high-temperature and high-pressure steam transfer in demanding industrial environments. These rotary unions require specialized seals and materials capable of handling extreme temperatures and thermal expansion.

Thermal Oil Rotary Unions

Thermal oil rotary unions allow safe transfer of high-temperature heat transfer fluids used in industrial heating processes. Their design ensures stable performance under high temperatures and continuous thermal cycling.

Hydraulic Oil Rotary Unions

Our hydraulic rotary unions power heavy-duty machinery by delivering high-pressure oil through rotating interfaces. These models are engineered to withstand high-pressure loads while maintaining leak-free operation.

Key Factors When Selecting a Rotary Union by Medium

Choosing the right rotary union based on the working medium requires evaluating several important parameters.

  • Temperature Compatibility
  • Pressure Requirements
  • Seal Material Compatibility
  • Rotational Speed

High-speed equipment requires rotary unions with precision bearings and optimized balancing to ensure stable operation.

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  • Sale! rotary joint suppliersrotary joint suppliers

    High Pressure High Speed Stainless Steel Rotary Joint Supplier

    Original price was: $40.00.Current price is: $35.00.
    • Max.Speed: ≤3000RPM
    • Max. Pressure: ≤1.5MPA
    • Max Temperature: ≤150℃
    • Applicable medium: Water, AIR, Oxygen, Hydrogen, etc
  • Sale! Pneumatic Swivel JointPneumatic Rotary Joint

    Industrial Pneumatic Swivel Union – Leak-Free Rotating Air Joints

    Original price was: $35.00.Current price is: $31.00.
    • Material: Corrosion-resistant stainless steel
    • Rotational Speed: High-speed options available
    • Pressure Rating: Suitable for high-pressure systems
    • Temperature Range : -50°C to +260°C
    • Port Sizes Available : G1/8″, G1/4″, M5, G3/8″
    • Pipe Sizes Supported: 4mm, 6mm, 8mm, 10mm, 12mm
  • Sale! Air Rotary JointAir Rotary Joint

    Reliable Air Rotary Joints for Continuous Rotation Applications

    Original price was: $50.00.Current price is: $30.00.
    • Max Pressure: Up to 10 bar (145 psi)
    • Max Temperature: Up to 80°C (176°F)
    • Rotational Speed: Up to 3,500 rpm
    • Materials: Nickel-Plated Steel, Carbon Graphite Seals
    • Seal Type: Balanced Mechanical Seals
  • Sale! for paper manufacturingrotary union for paper manufacturing

    Rotary Union for Paper Manufacturing Machines – Steam & Condensate Solutions for Dryer Cylinders

    Original price was: $35.00.Current price is: $30.00.
    • Connection: Male
    • Product name: Rotary union for paper manufacturing
    • Medium: Steam
    • Standard: ANSI
    • Color: Customized
    • Tolerable temperature: 220℃
    • Maximum speed: 300RPM
    • Apply pressure: 2MPA
  • Sale! Rotary Joint for Steam

    Corrugated Cardboard Machine Part Rotary Joint for Steam

    Original price was: $40.00.Current price is: $30.00.
    • Connection: Thread/The flange
    • Product name: Hot Oil Steam Rotary Joint
    • Color: Can be customized
    • Medium: Hot water vapor, Steam
    • Size: 1/2″~4″
    • Surface treatment: Spray paint
    • Thread: BSPP BSPT NPT METRIC
    • Max Speed: 100RPM
    • Max Temperature: 220℃
    • Max Pressure: 1.8mpa
  • Sale! High Speed Pneumatic Rotary UnionHigh Speed Pneumatic Rotary Union

    High Speed Pneumatic Rotary Union for Industrial Systems

    Original price was: $35.00.Current price is: $30.00.
    • Max Pressure: Up to 10 bar (145 psi)
    • Max Temperature: Up to 80°C (176°F)
    • Rotational Speed: Up to 3,000 RPM
    • Materials: Stainless Steel, Carbon Graphite Seals
    • Seal Type: Balanced Mechanical Seals
  • Sale! Single Passage Rotary UnionSingle Passage Rotary Union

    Single Passage Rotary Union Manufacturer and Deublin Replacement Supplier

    Original price was: $35.00.Current price is: $30.00.
    • Max Pressure: Up to 10 bar (145 psi)
    • Max Temperature: Up to 80°C (176°F)
    • Rotational Speed: Up to 3,000 RPM
    • Materials: Stainless Steel, Carbon Graphite Seals
    • Seal Type: Balanced Mechanical Seals
  • Sale! Rotary Coupling Water Rotary Unionrotary coupling water

    Two-Way Connector Rotary Coupling Water Rotary Union for Water

    Original price was: $30.00.Current price is: $26.00.
    • Product name: Water rotary joints
    • Material: Stainless Steel Brass
    • Pipe Clamp Size: 10/15</li&gt;&lt;li>&lt;strong>Max.Speed: 1000RPM
    • Max. Pressure: 1.6MPa
    • Max.Temperature: 100℃
    • Applicable Medium: Water, Water heating
  • Sale! Hot Oil Rotary Union

    Hot Oil Rotary Union for Corrugated Cardboard Production Lines

    Original price was: $30.00.Current price is: $26.00.
    • Max Pressure: Up to 50 bar (725 psi)
    • Max Temperature: Up to 300°C (572°F)
    • Rotational Speed: Up to 500 rpm
    • Materials Carbon: Graphite, Stainless Steel
    • Seal Type: Balanced Mechanical Seals
  • Sale! 90 Degree Rotary Union90 Degree Rotary Union

    Hydraulic High Pressure Right Angle 90 Degree Rotary Union

    Original price was: $30.00.Current price is: $26.00.
    • Material: Stainless steel
    • Size: All kinds of models and sizes can be customized.
    • Max.Speed: ≤200RPM;
    • Max. Pressure: ≤35Mpa;
    • Max. Temperature: ≤121℃;
    • Applicable medium: Hydraulic oil, water, gas, organic solvent.
  • Sale! Brass Swivel JointBrass Swivel Joint

    H Series Brass Swivel Joint – Compact Rotary Union for Cooling Systems

    Original price was: $25.00.Current price is: $21.00.
    • Product material: brass
    • Applicable media: water, air, coolant, etc.
    • Maximum temperature: 60℃ (high temperature can be customized by contacting customer service)
    • Maximum speed: ≤100ORPM
    • Using pressure: S16KG (1.6MPA)
    • Product specifications: 1/4-3 inches (2 points-3 inches)
  • Sale! rotary union jointrotary union joint

    Trusted Hydraulic Rotary Union Joint for Diverse Industrial Fluid Systems

    Original price was: $20.00.Current price is: $15.00.
    • Product name: HD Rotary Flange Joint
    • Material: Stainless Steel & Bronze
    • Seal Type : Graphite, Tungsten, Viton
    • Operating Pressure: Up to 3000 PSI
    • Temperature Range: -40°F to 400°F
    • Rotation Speed: Up to 300 RPM
    • Flange Type: Standardized Flange Options
  • Sale! Water Cooling Rotary Union

    New Compact Water Cooling Rotary Unions Manufacturers

    Original price was: $20.00.Current price is: $15.00.
    • Connection:Coupling, Fixed Internal Pipe
    • Product name: New Compact Water Cooling Rotary Union
    • Max temperature: -20°-200°
    • Media: Water
    • Speed: 0-1000R/min
    • Pressure: 1MPa
    • Application: Iron industry , big machine
    • Connection thread sizes: metric imperial,1.2 American-made 3 minus 1, 1.5, 2,2.5, 3 inches
    • Size: 3/4″
    • Thread: BS 2779:1986
    • Usage: Convey Water
  • Sale! fluid rotary jointdeublin 55 series rotary union

    H Series Water Rotary Union for Cooling Rolls, Plastic Machinery and Industrial Water Systems

    Original price was: $20.00.Current price is: $15.00.
    • Media Types: Cooling Water, Gas
    • Max Pressure: Up to 28 bar (406 psi)
    • Max Temperature: Up to 300°C (572°F)
    • Connection Type: Flanged or threaded
    • Max Speed: Up to 150 RPM
  • Sale! steam rotary union

    Steam Rotary Union for Paper Mills and Industrial Heating Systems

    Original price was: $20.00.Current price is: $15.00.
    • Size: All kinds of models and sizes
    • Max.Speed: ≤300RPM
    • Max. Pressure: ≤1.8MPA
    • Max. Temperature: ≤220℃
    • Applicable medium: Saturated steam, hot oil, superheated water, superheated st
  • Sale! Q Series Rotary UnionQ Type Rotary Union

    Rotary Union for Steam – Q Series for Heat Transfer Equipment

    Original price was: $15.00.Current price is: $13.00.
    • Model: Q Series
    • Medium: Steam, Hot Oil
    • Passages: Single Flow
    • Pressure Rating: Up to 150 PSI
    • Temperature: Up to 200°C / 392°F
    • Speeds: Up to 1,000 RPM
    • Connection Types: NPT, BSPT, Custom Threading Available
    • Material: Ductile Iron Housing, Hardened Steel Rotor, Graphite Seals
  • Deublin 1129-036-301 Rotary UnionDeublin 1129-036-301 Rotary Union

    Reliable Rotary Union Replacement | Deublin 1129-036-301 Model

    • Medium: coolant
    • Max. Temperature: 70℃
    • Max. Pressure: 141bar
    • Max. Speed: 20000RPM
    • Housing Material: Aluminum
    • Application: General Industry