Centritec Seals - A Leading Non-Contact Seal Manufacturer
Three silver centrifugal pressure seals from leading non-contact seal manufacturer.

About Centrifugal Pressure Non-Contact Seals

Centrifugal pressure seals are components that prevent leakage, contain pressure, and prevent contamination by harnessing rotational forces. Unlike mechanical contact seals, which rely on two mated components in direct contact, a centrifugal pressure seal uses a non-contact, frictionless design. These seals create a pressure differential – where the pressure inside the seal is greater than the pressure outside the seal housing – to improve performance.

Centritec Seals’ patented solutions help extend lifecycles, improve energy efficiency and minimize downtime - providing a proven, easy-to-install rotating seal solution for a wide variety of applications.

Call Centritec Seals - A Leading Non-Contact Seal Manufacturer860-643-1531 ext 119
Email Centritec Seals Manufacturerinfo@centritecseals.com

A Non-Contact Centrifugal Seal Design for Constant Motion Applications

Centritec Seals features a proprietary double-seal design, patented by Carlyle Johnson, that keeps lubricants in and keeps contaminants out. Engineers rely on our unique solution for reliable sealing, flexible axial alignment, and minimal heat generation. These seals are commonly used a cost-effective sealing solution in extreme environments, including turbines, rolling mills, industrial machinery, and wind power generation.

FLEXIBILITY & DURABILITY IN INDUSTRIAL SHAFT SEALING

Centritec’s non-contact centrifugal pressure seal design is extremely efficient - operating with minimal parasitic drag even in applications with continuous, high-speed operation. With its rotating chamber sealing method, these components significantly reduce operational speed requirements when compared to typical non-contact seals and can support the use of extremely low viscosity fluids, even as low as water, as lubricant.

Their ability to operate effectively over long lifecycles allows Centritec solutions to succeed in applications where other seals fail. This unique centrifugal pressure non-contact seal design minimizes friction – resulting in lower energy consumption, reduced heat generation, and decreased wear. Unlike many common rotating shaft seal types, our solutions can operate for long periods without maintenance – as demonstrated in a water-to-energy steam boiler shaft sealing application – where Centritec Seals achieved a lifecycle more than 3X longer than the previous non-contact rotary seal solution.

Carlyle Johnson's experienced engineers can custom-design centrifugal pressure non-contact seals to your specific needs, contact us for more information.

CENTRIFUGAL PRESSURE SEAL Applications

Many sealing solutions do not effectively meet the needs of applications with constant motion. From extreme temperature conditions to harsh environmental elements – such as snow, rain and dirt – Centritec Seals delivers reliability in a variety of applications including:

  • Turbines
  • Rolling mills
  • Railroad cars and locomotives
  • Off-road construction vehicles
  • Wind power generation

As a leading mechanical seal manufacturer, Centritec brings years of experience and engineering expertise to your unique sealing challenges. Whether you are looking to source high-speed rotary seals for your existing design, or if you are developing new equipment with unique dynamic shaft seal challenges – our team is here to help.

Features of Centritec Non-Contact Seals

Centritec non-contact centrifugal pressure seal design offer an extremely flexible shaft sealing solution for a wide range of lubrication methods and installation configurations. Supporting both horizontal and vertical installation, these seals are ideal for high-motion applications and offer the ability to:

  • Seal two fluid mediums from each other, such as oil and water
  • Pump fluids to create a pressure differential between the external environment and the controlled fluid cavity
  • Pump lubricant from the seal to the bearings - even while operating in oil or grease
  • Support long lifecycles even in high-speed operations, reducing maintenance and downtime.
  • Maintain seal integrity even in high vibration environments and with challenging axial alignment conditions
  • Perform effectively as low- and high-temperature shaft seals, using materials tailored to specific application requirements
  • Reduce energy usage with highly-efficient sealing performance.

The unique, patented design of Centritec Seals solves many of the alignment issues associated with other labyrinth seals and contact lip seals. Explore just a few of the applications for our centrifugal pressure non-contact seals.

Non-contact seal diagram showing locations for controlled fluid cavity, bearing, and other elements.


CUSTOMIZATIONS: LEVERAGE OUR SHAFT SEAL MANUFACTURER EXPERTISE

Centritec Seals offers a wide range of custom designed solutions to meet specific requirements. Our engineers can assist you in development the most cost-effective and robust solutions to overcome your housing assembly challenges.

We can develop a non-contact seal to:

  • Adapt to many applications – typical and atypical
  • Fit an existing application
  • Provide specific pumping capabilities, size and material types
  • Account for high motion, vibration or extreme environmental conditions.


Contact Centritec Seals for more information on our centrifugal seal manufacturer services, or to request a quote for your application.

Overview - Centritec
Non-Contact Seals

Advantages

  • Less downtime
  • Less maintenance
  • Long lifespan
  • Highly efficient
  • No special tools required for installation
  • Easy to install
  • Can separate two fluid mediums from each other

Operation

  • Lubricant contained and contaminants prevented even when idle
  • Capable of continuous high-speed operation
  • Seal allows for flexibility is axial alignment
  • Minimal parasitic drag
  • Operates in extreme temperatures
  • Capable of pumping lubrication from seal to bearing when operating in oil or grease

Contact Centritec Seals today for more information or a quote for our non-contact shaft seals.

Call Centritec Seals860-643-1531 ext 119

Fax Centritec Seals 860-646-2645


Centritec Non-Contact Seal FAQs



What type of shaft seal is best for equipment with long operating cycles or continuous run times?

Non-contact shaft seals can be an effective solution for equipment designed for long operating cycles or continuous service. Because the sealing surfaces do not continuously rub against each other during operation, non-contact designs can reduce friction, heat generation, and wear. Centritec Seals engineers sealing solutions for industrial equipment and systems with long operating cycles, such as compressors, pumps, ventilation fans, conveyors, turbines, generators, and rolling mills. The seals feature a patented centrifugal design that keeps lubricants in and contaminants out.



How do engineers select the right non-contact shaft seal for an industrial application?

Selecting the appropriate seal is more complex than evaluating shaft size alone. Engineers should consider the equipment’s rotational speed, operating cycle length, temperature, pressure, shaft movement, fluid quality requirements, contamination risks, leakage potential, equipment configuration, seal accessibility, the impact of downtime during seal replacement, and how regularly maintenance and inspection can be scheduled. The Centritec Seals team works with engineers and manufacturers to help determine if centrifugal non-contact sealing technology is well suited for the application.



What shaft seal solutions are available for high-vibration industrial equipment?

High vibration applications can cause shaft movement that contributes to premature seal wear or failure when a sealing solution cannot tolerate the operating conditions. Centritec offers engineered centrifugal, non-contact shaft seal solutions for demanding rotating equipment applications where vibration, shaft movement, operating speed, pressure, and other conditions must be considered when selecting the appropriate seal design.



Are non-contact shaft seals suitable for high-temperature applications?

Yes. Our non-contact shaft seals are often suitable for high-temperature rotating equipment when the seal design and materials are properly matched to the application. Since non-contact operation minimizes friction between sealing surfaces, it can help reduce friction-generated heat and wear. Centritec Seals engineers evaluate operating temperature, speed, pressure, fluids, environmental conditions, and equipment requirements when recommending a sealing solution.



What shaft seals are used in high-speed rotating equipment?

Depending on the system design and operating conditions, labyrinth seals, hybrid labyrinth seals, lip seals, and centrifugal pressure seals are often used in high-speed rotating equipment. These applications can include industrial fans, compressors, pumps, machine tools, turbines, generators, and more. Centrifugal seals are an ideal solution for rotating equipment that requires a seal that can provide flexible axial alignment, support lower viscosity lubricants, and eliminate friction-generated heat while performing in equipment with operating speeds up to 50,000 RPM.



Can a non-contact centrifugal shaft seal help reduce maintenance and downtime?

For appropriate long-running applications, yes. With a non-contact design that reduces friction and component wear, tolerates axial movement, reduces heat, and resists the impact of vibration – a centrifugal non-contact seal can often provide longer life than other seal types. This can be particularly valuable for compressors, conveyors, pumps, industrial fans, rolling mills, pulp and paper equipment, and turbine or generator systems where unplanned downtime can be costly. Notably, in circulation fan in a waste-to-energy plant, centrifugal seals provided twice the seal life of standard labyrinth and bearing isolator type shaft seals.



How can I extend shaft seal life in equipment with continuous or very long operating cycles?

For machinery with long run times, a non-contact shaft seal can provide longer life due to its design, which minimizes friction and wear by eliminating or limiting contact between sealing surfaces. Centrifugal non-contact seals can additionally extend seal life with a design that maintains lubricant quality and pressure, prevents lubricant contamination, and reduces heat. Contact a Centritec Seal engineer to discuss your unique application, and for support selecting a sealing solution.