Fluid Coupling

What is a Fluid Coupling?

A fluid coupling, also known as a hydraulic coupling, is a hydrodynamic device used to transmit rotating mechanical power. It employs the kinetic energy of a fluid, typically oil, to transfer torque from one shaft to another without any mechanical connection. This results in smooth acceleration, overload protection, and reduced wear on machinery components. Fluid couplings are widely utilized in industries such as mining, automotive, marine, and industrial manufacturing due to their efficiency and reliability.

Key Features of Our Fluid Couplings

• High Torque Capacity: Designed to handle high starting torques and variable loads efficiently.
• Smooth Start-Up: Eliminates jerky movements, reducing stress on connected equipment.
• Overload Protection: Prevents damage by slipping under excessive load conditions.
• Low Maintenance: Requires minimal upkeep due to simple construction and durable materials.
• Energy Efficiency: Optimizes power transmission with minimal energy loss.
• Versatility: Compatible with various applications, from conveyors to crushers.
• Temperature Resistance: Operates effectively in a wide range of environmental conditions.

Technical Specifications

Our fluid couplings are engineered to meet international standards, ensuring performance and safety. Below is a detailed table of parameters for different models.

Advantages of Using Fluid Couplings

• Shock Absorption: Reduces impact loads, prolonging equipment life.
• Vibration Damping: Minimizes vibrations for smoother operation.
• Load Adaptation: Automatically adjusts to load changes without manual intervention.
• Environmental Benefits: Lower noise levels and reduced emissions compared to mechanical couplings.
• Cost-Effective: Decreases downtime and maintenance costs over time.

Fluid Coupling FAQ

How does a fluid coupling work?
A fluid coupling consists of a pump impeller and a turbine runner immersed in fluid. When the impeller rotates, it flings fluid outward, creating kinetic energy that drives the turbine, transmitting torque without physical contact.

What types of fluid are used in fluid couplings?
Typically, mineral oils or synthetic fluids with specific viscosity grades are used. The choice depends on operating temperature, load, and environmental conditions to ensure optimal performance and longevity.

Can fluid couplings be used in high-temperature environments?
Yes, our couplings are designed with heat-resistant materials and fluids that can operate in temperatures ranging from -20°C to 150°C, making them suitable for various industrial settings.

How do I maintain a fluid coupling?
Maintenance involves regular inspection for leaks, checking fluid levels, and replacing fluid as per manufacturer recommendations—usually every 10,000 operating hours or annually. No complex disassembly is needed.

What are the common applications of fluid couplings?
They are used in conveyor systems, crushers, pumps, fans, automotive transmissions, and marine engines to provide smooth power transmission and protect against overloads.

How do I select the right fluid coupling for my application?
Consider factors like power rating, speed, torque requirements, and environmental conditions. Refer to our technical table or consult with our engineering team for personalized recommendations.

Are fluid couplings efficient?
Yes, they offer high efficiency, typically between 95-98%, with minimal power loss due to fluid dynamics, making them energy-saving solutions for many industries.

What safety features do fluid couplings provide?
They include overload protection by allowing slip under excessive load, preventing equipment damage, and reducing the risk of accidents due to sudden failures.