Rotary unions for water and thermal oil

Rotary unions for temperatures up to 120° Celsius, suitable for water or thermal oil. Rustproof and available in a single-channel or two-channel version.

Deublin is a globally recognized manufacturer of high-precision rotary unions, engineered for reliable fluid transfer between stationary and rotating components.
The water and thermal oil rotary unions are designed for demanding industrial environments requiring excellent sealing performance, high thermal resistance, and long operational life.

These rotary unions are widely used in plastics processing, paper manufacturing, metalworking, and energy industries.

Product Range

The Deublin product range for water and thermal oil includes:

• Single-pass rotary unions
• Multi-pass rotary unions
• Cooling water rotary unions
• High-temperature thermal oil rotary unions
• Mechanical seal or carbon seal designs
• Carbon steel, stainless steel, or cast iron constructions

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Technical Specifications

Specifications vary by model:

• Media: water, thermal oil
• Maximum working pressure: up to 40 bar
• Operating temperature: up to +350°C (thermal oil)
• Rotational speed: up to 10,000 rpm
• Sealing type: mechanical seal, carbon seal
• Connections: threaded or flanged
• Rotation direction: uni-directional or bi-directional

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Classification

Deublin rotary unions for water and thermal oil can be classified by:

• Media type
• Number of passages
• Seal technology
• Temperature range
• Industrial application

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Applications

Typical applications include:

• Plastic processing machinery
• Heated rolls and cylinders
• Paper industry equipment
• CNC machines and machining centers
• Industrial heating and cooling systems
• Thermal transfer processes

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Key Benefits

• Reliable sealing at high temperatures
• Minimal fluid leakage
• Long service life with reduced maintenance
• Suitable for heavy-duty industrial applications
• Proven Deublin quality