Water Swivel Joint

Looking for water rotary joints that deliver reliable, leak-free performance under pressure and rotation? This page features our premium selection of rotary unions designed for water transfer in industrial, HVAC, textile, and machining applications.

A water rotary joint (also known as a water swivel joint or rotary union for water) is a mechanical device that allows fluid to flow from a stationary supply line into a rotating machine part, without leaks or pressure loss. It’s essential in systems like roll cooling, die-casting, paper mills, and heat exchangers.

Engineered for continuous flow, high rotation speed, and long service life, our water rotary joints are available in a wide variety of sizes, sealing options, and mounting styles.

Key Features of Our Water Rotary Joints

Leak-Free Sealing: Utilizes advanced sealing technology (carbon-graphite, ceramic, or mechanical seals) for long-lasting, leak-proof operation.
Corrosion-Resistant Materials: Made from stainless steel, brass, or hard-anodized aluminum to resist water corrosion and mineral buildup.
Smooth Rotation at High Speeds: Designed for up to 3,000 RPM in some models, enabling efficient fluid transfer in high-speed equipment.
Multiple Port Sizes: Available in NPT, BSP, and metric threads, from 1/4” to 2” ports.
Single-Flow and Dual-Flow: Options for one-way or return flow through separate channels, supporting complex fluid circuits.

Applications of Water Rotary Joints

Textile Machinery

Transfer cooling water to dyeing cylinders, steam rollers, or calendaring equipment.

Injection Molding

Control mold temperature with precision using water rotary unions in heating/cooling loops.

Paper and Film Processing

Use rotary joints on drying cylinders and calendar rolls for water or steam management.

Machine Tool Cooling

Deliver coolant to rotating spindles or tools during high-speed machining.

HVAC & Heat Transfer

Support chilled or hot water circulation in rotary heat exchangers and energy recovery systems.

Why Choose Our Water Rotary Joints?

• Over 10 years of rotary sealing expertise
• In-stock options with same-day shipping
• Custom designs for OEM integration
• Trusted by global industries including Siemens, GE, and Toshiba
• Competitive pricing with bulk order support