Industrial Valve Applications
At American Belleville, we design and manufacture precision-engineered disc springs, flange washers, and Belleville washers for industrial valves. We build our springs to perform in the most demanding industrial valve environments. We work diligently to deliver high-performance, application-critical spring components that help prevent costly leaks, emissions, and downtime. Discover how our industrial springs help prevent leaks and protect profitability.
Combat Fugitive Emissions and Costly Maintenance with American Belleville Springs
In industrial settings, leaks often go unnoticed until routine maintenance uncovers them—by then, the damage may already be done. Beyond the safety risks, these leaks can lead to expensive penalties and regulatory consequences. A leading cause? Inadequate packing stress on bolted valve connections.
The Role of Live Loading in Leak Prevention
Valve stem seals require consistent packing stress to maintain a proper seal. Over time, stress is naturally lost due to a range of factors including:
- Thermal expansion
- Creep and relaxation
- High-frequency valve cycles
- Mechanical vibration
“Live loading” is a proven technique to counter this stress loss. This technique uses Belleville Springs to apply a continuous spring load to the valve’s gland follower.
The result is a dynamic, self-adjusting force that helps maintain gasket compression and prevent leaks throughout the valve’s operation.
Why Belleville Springs for Valve Applications?
Belleville washers—also known as disc springs—are uniquely suited for valve live loading. Their compact, conical-disc shape enables them to exert high spring forces in a small space, making them ideal for valve applications where space and reliability are critical.
Advantages of Belleville washers in valve applications include the following:
- Maintain bolt tension and prevent loosening
- Compensate for packing wear and thermal movement
- Withstand vibration and cycling
- Provide consistent sealing pressure over time
By adjusting the number and arrangement of springs in a stack, the amount of applied stress can be precisely tuned to meet your specific sealing requirements.
Common Valve Applications
American Belleville Springs are used across a variety of valve systems, including:
- Ball seat valves
- Butterfly valves
- Gasket and sealing assemblies
- LNG / FLNG systems
- Flow control valves
- Valve actuators and mechanisms
- Pumps and pressurized systems
Disc Springs Built for Performance and Durability
Choosing the right springs requires careful consideration of several factors:
- Operating Conditions: Our Belleville Springs are available in a range of materials and finishes to withstand extreme temperatures and corrosive environments.
- Dimensional Requirements: We offer both metric and imperial sizes with stackable configurations to meet your installation space constraints.
- System Integrity: Prior to installation, valve components should be thoroughly inspected. Issues such as pitted surfaces, bent valve stems, or faulty packing can reduce the effectiveness of live loading.
Correct installation and pre-stressing are also critical to performance. Always follow the recommended procedures for spring stack setup to ensure optimal results.
Contact Us to Discuss Industrial Springs
American Belleville provides a wide selection of customizable Belleville Springs for valve live loading and sealing reliability. Whether you’re working on a new valve design or retrofitting an existing system, our team is ready to help you select the right solution.
Let’s work together to keep your systems tight, safe, and leak-free! Contact us today to get started.
