Description

H Series Water Rotary Union: Product Overview

The H Series Water Rotary Union is engineered for reliable, leak-free water transfer in applications requiring continuous rotation, stable cooling performance, and long-term durability. Designed for demanding industrial environments, this rotary union delivers exceptional sealing performance, corrosion resistance, and high efficiency, making it the ideal choice for water-based cooling, heating, and fluid circulation systems.

Whether your equipment runs at high speed, high temperature, or under continuous duty cycles, the H Series provides consistent performance with minimal maintenance—trusted by OEMs, engineers, and maintenance teams worldwide.

How the H Series Water Rotary Union Works

The H Series enables leak-free water transfer between stationary and rotating interfaces. The water enters the stationary housing, passes through precision seals, and flows through the rotating shaft into the rotating component.
The system ensures:

• Continuous 360° rotation

• Stable water flow

• No hose twisting or leakage

This mechanism makes the union suitable for all applications requiring dynamic water transfer.

Key Features of the H Series Water Rotary Union

1. Precision-Engineered for Water Media

The internal flow paths and sealing structures are optimized for water-based fluids, including:

• Cooling water

• Soft water

• Hot/cold water circulation

• Low-viscosity process fluids

This ensures low pressure drop, high flow efficiency, and stable temperature control.

2. High-Strength Stainless Steel Construction

The H Series Rotary Union uses corrosion-resistant materials such as SS304 / SS316 stainless steel, offering:

• Long-term durability

• Excellent resistance to rust and oxidation

• Extended service life in wet and high-humidity environments

Perfect for industrial cooling systems and water lines exposed to harsh conditions.

3. Advanced Mechanical Sealing System

Equipped with high-grade carbon-to-ceramic or tungsten carbide seals, the rotary union ensures:

• Zero leakage under continuous rotation

• Low friction and minimal wear

• Dependable sealing performance even under dynamic conditions

This sealing technology enhances reliability for long operating cycles.

4. Smooth Rotation & High-Speed Stability

The precision ball bearings provide:

• Low-torque rotation

• Stable high-speed performance

• Reduced vibration and noise

Ideal for high-speed machinery such as printing presses, cooling drums, and rotary cylinders.

5. Versatile Port & Connection Options

Available in various connection configurations:

• NPT / BSP threaded ports

• Flanged connections

• Custom port sizes

• Single- or dual-passage designs

Engineered to fit a wide range of industrial equipment with minimal modification.

Applications of the H Series Water Rotary Union

The H Series is widely used in industries where reliable water circulation is essential:

Plastics & Rubber Industry

• Cooling rolls

• Extrusion system cooling

• Rubber calendering

Printing & Packaging Machinery

• Cooling drums

• Laminating rollers

• High-speed printing cylinders

Metalworking & CNC Systems

• Wet cooling systems

• Hydraulic oil-water cooling converters

• Spindle water cooling

Textile Industry

• Dye cylinders

• Heat-setting equipment

• Cooling rollers

Paper & Film Processing

• Temperature-controlled rollers

• Drying systems

• Moisture-regulated equipment

■ Chemical & Food Machinery

• Stainless water transfer

• High-cleanliness rotating equipment

This wide compatibility makes the H Series a universal solution for industrial water transfer.

Why Choose Our H Series Water Rotary Union?

As a professional manufacturer specializing in rotary joints and rotary unions compatible with brands like Deublin, Kadant, and Maier, we offer:

• OEM-level quality at a more competitive price

• Custom engineering services for unique applications

• Short lead time & fast delivery

• Professional technical support

• Proven reliability across global industrial customers

Our H Series Water Rotary Union delivers exceptional value without compromising performance or durability.

Conclusion

The H Series Water Rotary Union is a robust, high-performance solution designed for industries requiring reliable, leak-free water transfer under continuous rotational motion. Its advanced sealing technology, stainless steel construction, and high-speed stability make it the ideal choice for cooling systems, rotating drums, printing machinery, and temperature-controlled processes.

Whether you need a standard model or a custom-engineered rotary union, the H Series ensures long-term reliability and superior operational efficiency.