Single Passage Rotary Union

Engineered for uncompromising reliability, our Single Passage Rotary Union provides a robust and leak-proof connection for transferring a single medium from a stationary source to rotating equipment. Engineered for precision, this mono-flow rotary joint ensures continuous flow. Additionally, it handles water, oil, air, vacuum, and coolant with ease. Designed for engineers who demand precision, technicians who require reliability, and procurement managers who seek long-term value, this component is the cornerstone of efficient and continuous industrial operations. Eliminate system downtime and avoid costly leaks with our robust rotary union. In addition, boost your machinery’s performance in the most demanding conditions.

The Engineering Behind Uninterrupted Performance

In the world of industrial machinery, the transfer of fluid or gas to a rotating component is a common engineering challenge. The solution must be robust, reliable, and leak-free. Our Single Passage Rotary Union is not just a component; it is an engineered solution designed to meet this challenge head-on.

The Science of Sealing

The core of our rotary union’s superiority lies in its advanced sealing technology. Unlike simplistic swivel fittings that rely on wear-prone elastomers, our unit employs a balanced mechanical seal. This system consists of two main parts: a stationary seal ring made of premium Silicon Carbide and a rotating seal ring made of a self-lubricating Carbon-Graphite composite. These rings are lapped to an optical flatness of just a few helium light bands. When in operation, a microscopic fluid film forms between the faces, creating a near-perfect, dynamic seal. The “balanced” nature of the design uses the pressure of the media itself to maintain the optimal sealing force, ensuring a consistent, leak-proof barrier across a wide range of pressures and speeds.

Designed for Durability and Longevity

Every element of this single-channel rotary joint is built for longevity. The housing protects the internal components from the harsh realities of the factory floor. The rotor is precision-ground to ensure perfect concentricity, which is critical for seal alignment and high-speed stability. The dual deep-groove ball bearings are selected to handle both radial and axial loads, preventing shaft wobble that could lead to premature seal failure. This meticulous attention to design detail ensures that our rotary union will provide millions of trouble-free cycles, delivering an exceptional return on investment.

Key Features

ADVANCED LEAK-PROOF SEALING

Utilizes a proprietary balanced mechanical seal design with micro-lapped seal faces (Carbon-Graphite vs. Silicon Carbide). This ensures a virtually leak-free seal (<1 cc/min), minimizing fluid loss, reducing environmental contamination, and cutting operational costs, far outperforming basic o-ring or lip seal designs.

HIGH-PERFORMANCE ROTATIONAL CAPABILITY

Engineered with deep-groove, precision ball bearings to handle high speeds (up to 3,500 RPM for standard models) and continuous rotation with minimal friction and heat generation. This low-torque design protects the integrity of the seal and extends the service life of both the union and your equipment.

ROBUST, CORROSION-RESISTANT CONSTRUCTION

Features a durable, lightweight anodized aluminum housing for general applications or a stainless steel housing for corrosive media and washdown environments. The hardened steel or stainless steel rotor ensures maximum strength and resistance to wear and tear.

OPTIMIZED FLOW PATH

The single-channel fluid coupling is designed with a smooth, unobstructed flow path to minimize pressure drop and turbulence. This guarantees that your equipment receives the precise flow rate and pressure required for consistent, repeatable performance.

MEDIA VERSATILITY

This one-port fluid swivel is compatible with a wide range of media, including water, glycol-based coolants, cutting fluids, hydraulic oil, compressed air, and vacuum. Specialized seal options are available for more aggressive fluids or extreme temperatures.

Why Choose Our Single Passage Rotary Union?

Superior Quality and Craftsmanship: Manufactured with premium materials and subjected to rigorous quality control, ensuring consistent performance and reliability.
Competitive Pricing: Offers exceptional value for cost-conscious procurement teams without sacrificing quality or durability.
Fast and Reliable Delivery: Streamlined logistics and global shipping options ensure your order arrives on time, every time.
Expert Technical Support: Our team of engineers and technical experts is available to assist with product selection, installation, and troubleshooting.
Customization Options: Tailor the rotary union to your exact specifications, including custom materials, sizes, and connection types.

Procure with Confidence: The Superior Choice for Your Machinery

Investing in a high-quality Single Passage Rotary Union is an investment in your operational efficiency. By preventing leaks, minimizing downtime, and ensuring the consistent performance of your rotating equipment, our product delivers a tangible return.

Ready to enhance your industrial systems with the Single Passage Rotary Union? Contact us today to request a quote, explore customization options, or speak with one of our technical experts. Ensure your operations run smoothly with a component designed for precision, durability, and efficiency.

Don’t let a failing component be your system’s weakest link. For a reliable, long-lasting, and high-performance solution, specify our Single Passage Rotary Union for your next project.

  • Sale! large rotary unions for air

    Dublin 1300 Series Large Rotary Unions for Air

    Original price was: $300.00.Current price is: $260.00.
    • Product name: Dublin 1300 Series Rotary Union Large Rotary Unions for Air
    • Max Pressure (Air): 150 PSI
    • Max Pressure (Hydraulic Oil): 1000 PSI
    • Max Speed: Up to 3000 RPM
    • Media Types: Air, Hydraulic Oil, Steam
    • Overall Length: Varies by model
    • Rotor Connection: Various options available (e.g., G 1/4″-19)
    • Operating Temperature: Up to 250°F (121°C)
  • Sale! large rotary unions for air

    Dublin 2200 Series Large Rotary Union for Air

    Original price was: $260.00.Current price is: $236.00.
    • Product name: Dublin 2200 Series Rotary Union Large Rotary Unions for Air
    • Max Pressure (Air):150 PSI
    • Max Pressure (Hydraulic Oil): 3000 PSI
    • eader”>Max Speed: Up to 24,000 RPM
    • Media Types: Air, Hydraulic Oil, Steam, Coolant
    • Overall Length: Varies by model
    • Rotor Connection: Various options available (e.g., G 1/4″-19)
    • Operating Temperature: Up to 250°F (121°C)
  • Sale! Large Rotary Unions for Air

    Dublin 1005 Series Large Rotary Unions for Air

    Original price was: $180.00.Current price is: $169.00.
    • Product name: Dublin 1005 Series Rotary Union Large Rotary Unions for Air
    • Max Pressure: Up to 140 bar (2030 PSI)
    • Max Speed: Up to 10,000 RPM
    • Media Types: Air, Hydraulic Oil, Coolant
    • Overall Length: Varies by model
    • Rotor Connection: Various options (e.g., 1/8 NPT)
    • Max Temperature: Up to 71°C (160°F)
    • Flow Rate : Up to 6.7 L/min (1.8 GPM)
  • Sale! deublin 1109-010-165

    Deublin 1109-010-165 Rotary Union- Coolant for CNC Machines

    Original price was: $120.00.Current price is: $108.00.
    • Part Number:1109-010-165
    • Supply Connection: 3/8″-18 NPT
    • Rotor Connection: 5/8″-18 UNF LH
    • Overall Length: 135 mm (5.315 inches)
    • Housing Diameter: 53.5 mm (2.106 inches)
    • Maximum Pressure (Coolant):103.4 bar (1500 psi)
    • Maximum Pressure (MQL):10 bar (150 psi)
    • Maximum Speed: 20,000 RPM
    • Maximum Flow Rate (Coolant): 21.6 GPM (81.8 L/min)
    • Maximum Flow Rate (MQL): 72.1 CFM (2040 L/min)
    • Operating Temperature: Up to 71°C (160°F)
  • Sale! Dublin 17 Series Air Rotary Union

    Dublin 17 Series Pneumatic Hydraulic Rotary Union

    Original price was: $100.00.Current price is: $80.00.
    • ass=”product-table-cell product-table-header”>Product name:Dublin 17 Series Air Rotary Union
    • Max Pressure (Air): 150 PSI
    • Max Pressure (Hydraulic Oil: 3000 PSI
    • Max Speed: Up to 250 RPM
    • Media Types: Air, Hydraulic Oil, Vacuum
    • Overall Length: Varies by model
    • Rotor Connection: Various options available (e.g., G 3/8)
    • Operating Temperature: Up to 250°F (121°C)
  • Sale! rotary union for printing ink

    Advanced Rotary Union for Smooth Printing Ink Delivery

    Original price was: $80.00.Current price is: $60.00.
    • Part number: Replace Deubin 17-420-401
    • Pressure: 2.0MPA
    • Temperature: 120℃
    • Speed: 3500rpm
    • Medium: water, gas, oil
    • Installation method: External thread connection
  • Sale! water cooling rotary union

    Metallurgical Water Cooling Rotary Union for Steel Mill

    Original price was: $50.00.Current price is: $42.00.

    Water Cooling Rotary Union: Product Details The Water Cooling Rotary Union is an essential component designed to facilitate the efficient transfer of cooling water in various industrial applications. Engineered for high performance and reliability, this rotary union ensures optimal fluid dynamics while preventing leaks, making it ideal for use in manufacturing processes, CNC machines, and…

  • Sale! High pressure rotary joint

    High Pressure Rotary Joint

    Original price was: $50.00.Current price is: $35.00.
    • Product name: High pressure rotary joint
    • Color: silvery, also Can be customized
    • Medium: Water, Hydraulic oil,etc
    • Size: 10-50A/Can be customized
    • Surface treatment: Polishing
    • Thread: BSPP BSPT NPT METRIC
    • Connection: Male
    • Business Type: Rotary Joint Manufacturers
    • Max Speed: 30RPM
    • Max Temperature: 100℃
    • Max Pressure: 20MPa
  • Sale! Mono Flow Rotary Union

    Mono Flow Rotary Union

    Original price was: $35.00.Current price is: $30.00.
    • Model Type: Mono Flow Rotary Union
    • Max Operating Pressure: 150 PSI (10 bar)
    • Max Operating Temperature: 250°F (121°C)
    • Max Speed: 100 RPM
    • Media Compatibility: Water, Oil, Air
    • Connection Types: Available NPT, BSP
  • Sale! rotating union waterrotationg union water

    High Quality High Speed Rotating Union Water

    Original price was: $15.00.Current price is: $13.00.
    • 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! H Series Hydraulic Rotary Union

    High Speed H Series Hydraulic Rotary Union Manufacturers

    Original price was: $15.00.Current price is: $12.00.
    • Media Types: Hydraulic Oil, Water, Steam, Thermal Fluids
    • Max Pressure: Up to 28 bar (406 psi)
    • Max Temperature: Up to 300°C (572°F)
    • Max Speed: Up to 150 RPM
    • Connection Type: Flanged or threaded
  • Sale! Mono-Flow-Rotating-Joint-

    H Mono Flow Rotary Union For Water Treatment Equipment

    Original price was: $15.00.Current price is: $12.00.
    • Media Types: Water, Oil, Air
    • Max Speed: Up to 3,500 RPM
    • Max Pressure: Up to 3,625 psi
    • Temperature Range: Up to 250°F (121°C)
    • Connection Types: NPT sizes from 1/4″ to 1″