What is a concentric disc, and how is it different from other designs?
A concentric disc is a mechanical device characterized by multiple circular discs aligned in a concentric arrangement. These discs typically rotate around a central axis or shaft. The design allows for controlled movement and interaction between the discs, often resulting in desirable effects for specific applications. One of the primary differences between concentric discs and other disc designs lies in their unique configuration, which enables efficient energy transfer and precise control over various mechanical processes. The arrangement of the discs in concentric layers enhances their ability to distribute forces evenly and maintain stability during operation.
Concentric disc systems find widespread use in diverse industries, ranging from automotive engineering, where they are employed in limited-slip differentials, to specialized industrial machinery, such as clutches and torque converters. The distinctive advantages of concentric disc technology make it an essential component in numerous engineering solutions where precise torque distribution, friction modulation, or energy transmission are vital considerations.
What are the applications and industries that commonly utilize concentric discs?
Concentric discs find extensive utilization across various industries and applications due to their unique design and functional advantages. In the automotive sector, they are commonly employed in limited-slip differentials, enhancing traction and improving vehicle handling, especially in challenging road conditions. Additionally, concentric discs are frequently utilized in torque converters, contributing to efficient power transmission between the engine and the transmission system. In the manufacturing and industrial realm, these disc arrangements are often integrated into clutches, providing smooth engagement and disengagement between mechanical components in machinery.
Their ability to precisely modulate friction makes them valuable in heavy machinery and equipment. Moreover, concentric discs have also found applications in the aerospace industry, contributing to reliable and precise control mechanisms in flight control systems. The versatility of concentric disc technology extends to renewable energy sectors, with applications in wind turbine braking systems, enabling safe and controlled wind energy harvesting. The medical field benefits from their use in prosthetic limb design, providing controlled motion for enhanced mobility. The widespread adoption of concentric discs across various industries attests to their effectiveness in optimizing mechanical systems and enhancing operational performance.
| Design Standards | API 609/ ASME-B-16.34 / EN593 |
|---|---|
| Size Range | NPS 1 1⁄2” – 48” / DN 40- 1200 |
| Maximum Pressure/Rating | IVGK / IVTL 20 bar 150#, IVDF 16 bar PN16 |
| Design Temperature | -40°C to +180°C |
| End Connections | Wafer / Lug / Double Flanged |
| Valve Sizes | 2" (50mm) to 120" (3000mm) |
| Ratings | Class 150 , Class 300 ,Equivalent to DIN PN2.5, PN6, PN10, PN16, PN25, PN40 |
| Body Seat | IVGK – Replaceable / Bonded, IVTL / IVDF – Bonded to body |
| Body Materials | Carbon Steels inc. Low Temp Austenitic/ Super Austenitic Stainless steels Aluminium bronze Duplex/ Super Duplex alloys (1A-6A) Hastelloy® B, C, Inconel Monel®, Alloy 20 Others upon request |
| Face to Face | EN 558 / API 609 BS 5155 |
| Testing | BS-6755 Part-1/API-598/EN-12266 |
| Top Flange | ISO 5211 |
| Application & uses | Water distribution Water treatment Wastewater Dams Power plants Industry |
| 1. | Plate | POM |
| 2. | O-ring | EPDM rubber |
| 3. | Ring | POM |
| 4. | Body | Ductile iron GJS-500-7 (GGG-50) |
| 5. | Bearing | Bronze/PTFE composite |
| 6. | Shaft, drive | Stainless steel 1.4021 |
| 7. | Liner | EPDM rubber |
| 8. | Disc | Ductile iron GJS-500-7 (GGG-50) |
| 9. | Shaft, stub | Stainless steel 1.4021 |
| 10. | O-ring | NBR rubber |
| 11. | Plug | POM |
| 12. | Screw | Stainless steel A2 |
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Stainless Steel Butterfly Valve
Stainless steel valves are especially tough since they are made of steel and have a high level of corrosion resistance. Steel valves can endure temperatures that are both very high and very low. Compared to steel valves, brass or plastic valves are often only rated for a smaller range of operating temperatures..
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Carbon Steel Butterfly Valve
Because of their excellent resistance to the corrosive tendencies of water and other liquids, carbon steel valves are used in hydraulic-based applications. Due to its high carbon content, it has excellent mechanical properties, strengthens the valve mechanism, and increases the valve mechanism's lifespan.
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Cast Iron Butterfly Valve
Cast iron valves are commonly used in numerous applications, including utility systems in various industrial plants, air conditioning and plumbing in buildings, fire fighting equipment, and water and sewer lines.
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Alloy Steel Butterfly Valve
Alloy Steel Valves made from components that meet or exceed international and national requirements. A The main quality of alloy steel valves is three continuous flow of processes from foundry operation.
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