This split-type, inflatable valve-type carbon ring seal is a high-performance shaft sealing solution specifically designed for high-speed rotating equipment. With its precision structure and reliable manufacturing process, it provides long-lasting, zero-leakage sealing for equipment such as fans and centrifuges, and is particularly suitable for hazardous media and harsh operating conditions.
Core Design Features:
Valve-Type Carbon Ring Seal Core: Utilizing a precision valve-type carbon ring as the main sealing element, the carbon ring material possesses excellent self-lubricating properties, high-temperature resistance, and wear resistance. It forms a stable fluid film under high-speed rotation, precisely conforming to the shaft surface, reducing friction loss, and adapting to minor shaft runout and thermal expansion and contraction, preventing dry friction and seal failure. The valve-type structure automatically adjusts the sealing gap according to operating conditions, further enhancing sealing stability.
Split-Type Cavity Design:
The cavity adopts a split-type splicing structure, allowing for installation, maintenance, and component replacement without axial disassembly, significantly reducing equipment downtime. The modular design flexibly adapts to different shaft diameters, and on-site installation requires no complex tooling, making it particularly suitable for industrial scenarios with limited space and high maintenance complexity, significantly reducing labor and time costs.
Multi-stage Sealing Arrangement:
Utilizing a multi-stage carbon ring series design with the sealing cavity, a gradient pressure barrier is formed, minimizing media leakage. This multi-stage structure not only improves sealing reliability but also extends overall service life by dispersing wear, maintaining stable sealing performance even under high-frequency start-stop and pressure fluctuation conditions.
Inflatable Buffer System:
An integrated inflatable design uses nitrogen as a buffer gas, forming an inert gas curtain barrier between the sealing cavity and the process medium. Precise adjustment of the nitrogen pressure effectively prevents media leakage to the atmosphere and avoids external impurities and dust intruding into the sealing surface, truly achieving zero media leakage. Perfectly suited for hazardous chemicals, toxic media, or negative pressure operating environments.
Operating Parameters:
- Operating Temperature: -40℃ ~ 200℃, covering both extremely cold outdoor environments and high-temperature industrial production scenarios.
- Operating Pressure: 0 ~ 2MPa, adaptable to various process requirements from low to high pressure.
- Linear Velocity: ≤ 140 m/s, meeting the high-speed rotation requirements of equipment such as high-speed fans and centrifuges.
- Compatible Shaft Diameter: 25 ~ 400 mm, customized size solutions available based on equipment shaft systems.
Core Advantages:
- Zero Leakage Safety Guarantee: Nitrogen buffer gas curtain + multi-level sealing double protection completely eliminates the leakage of hazardous media into the atmosphere, complying with environmental protection and safety production standards, making it an ideal choice for industries with zero tolerance for leakage, such as chemical and energy industries.
- Convenient Installation and Maintenance: The split-cavity design makes disassembly and replacement of vulnerable parts more efficient, without disassembling the main body of the equipment, significantly reducing downtime and maintenance costs.
- Long Lifespan and Durability: The carbon ring material is wear-resistant and corrosion-resistant, and the multi-level structure disperses wear. Combined with self-lubricating properties, it significantly extends the replacement cycle of seals and reduces the total lifespan cost. Wide Operating Condition Adaptability:Maintains stable sealing performance from -40℃ to 200℃, and from atmospheric pressure to 2MPa pressure fluctuations, unfazed by complex operating conditions.
- High Efficiency and Energy Saving: The low friction characteristics of the valve-type carbon ring reduce shaft power loss, and the gas-filled system avoids media entrainment losses, providing a highly efficient and energy-saving sealing solution for equipment operation.
Typical Application Scenarios:
- Industrial Fans:Blast furnace blowers, induced draft fans, exhaust fans, etc., sealing high-temperature flue gas and corrosive gases to prevent media leakage and dust pollution.
- Centrifuges:High-speed centrifuges in the chemical, pharmaceutical, and food industries, sealing toxic solvents and suspensions to ensure production safety and product purity.
- Hazardous Media Conditions: Chemical, petroleum, and nuclear power industries, sealing toxic, flammable, explosive, or corrosive media, meeting stringent sealing requirements under negative and high pressure conditions.
- Hazardous Media Conditions:Chemical, petroleum, and nuclear power industries, sealing toxic, flammable, explosive, or corrosive media, meeting stringent sealing requirements under negative and high pressure conditions.
Standards and Reliability:
Product design and manufacturing strictly adhere to international sealing industry standards and safety regulations. Key components undergo fatigue testing, leak detection, and environmental simulation verification to ensure stable and reliable performance during long-term continuous operation, providing comprehensive safety protection for operators and equipment.
