High-Performance Rotary Seals

Rotaflon™ SB-Series

For sealing dynamic, rotary motion

SB-Series rotary seal installation example
SB-Series rotary seal installation example
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The SB-series is most suited for high surface speeds and medium to lower pressures. Seal lip and seal body are constructed from PTFE/Teflon® composite materials or other highly engineered polymer materials to meet the most challenging rotary sealing applications. These compounds offer …More Info 

low friction and a wide temperature range, and are suitable for sealing corrosive and abrasive media. The Rotaflon SB-series employs a deflected lip seal geometry; anti-rotational devices such as O-rings or flanges are utilized to prevent the seal from rotating with the shaft.

Capabilities Rotaflon™ SB–Series:

  • Low friction and wear
  • High surface speeds up to 7,000 fpm (35m/s)*
  • Sealing pressure up to 500psi (35bar)*, PV-Rating* 4.0 to 9.0 depending on seal design
  • Can tolerate dry running conditions
  • Seals corrosive and abrasive media
  • Temperature range: -320ºF to 400ºF (-200°C to 200°C)**
  • Extended seal life
  • Increased shaft misalignment (only seal designs with springs)
  • FDA compliant designs available
  • Available quickly in low volumes with no tooling charges

Our Rotaflon™ SB-Series are categorized as follows:

up to 300psi (20bar)*; PV-Rating 4.0 to 5.0
up to 750psi (50bar)*; PV-Rating 8.0 to 10.0

Calculate the PV-Rating of the seal required for your application using calculator below:

The PV-Rating of an AHPSeal rotary seal gives an indication of the seal’s ability to withstand the stress applied to a seal due to sealing pressure as the shaft rotates with velocity. The higher the PV-Rating is, the higher the seal’s ability is to handle a higher combination of pressure and rotational velocity, with 10 being the highest. This is to only be used as a guide for lubricated operating conditions to narrow down possible sealing products.
Seals can not be operated at their upper pressure and speed rating at the same time!

Please contact one of our experienced seal engineers to select the best seal for your application.

PV-Rating Calculator:
Shaft Diameter :
RPM:
Pressure :

PV-Rating =
  

High-Performance Rotary Seals

Rotaflon™ SB-Series – up to 300psi – PV-Rating: 4.0 to 5.0

Typical Applications

-Sealing pressure from one side

-Pumps, motors, compressors, machine tools, brakes, clutches, mixers and others.

Operating Range

Pressure: up to 110psi (7.6bar)* continuous, up to 300psi (20bar)* max. pressure spikes. For pressures exceeding 60psi (4bar), please contact engineering.

Surface Speed: up to 7,000fpm (35m/s)* at lower pressure

Temperature: -58 to 400°F (-50 to 200°C)* depending on seal material

PV-Rating: 4.0 to 5.0 depending on seal design and material

Seals can not be operated at their upper pressure and speed ratings at the same time.

Materials: Proprietary composite materials

Availability: More info…

Most standard, non-standard, and application-specific designed SB-rotary shaft seals, in inch or metric sizes, are available with a 1-2 week turnaround. Expediting service available.

Application-specific and proprietary seal designs are available. Please contact engineering to get the best seal for your rotary sealing applications.


High-Performance Rotary Seals

Rotaflon™ SB-Series – up to 750psi; PV-Rating: 8.0 to 10.0

Typical Applications

-Sealing pressure from one side

-Pumps, motors, compressors, machine tools, brakes, clutches, mixers and others.

Operating Range

Pressure: up to 500psi (35bar)* continuous, up to 750psi (50bar)* max. pressure spikes. For pressures exceeding 60psi (4bar), please contact engineering.

Surface Speed: up to 3,500fpm (17.5m/s)* at lower pressure

Temperature: -58 to 400°F (-50 to 200°C)* depending on seal material

PV-Rating: 8.0 to 9.0 depending on seal design and material

Seals can not be operated at their upper pressure and speed ratings at the same time.

Materials: Proprietary composite materials

Availability: More info…

Most standard, non-standard, and application-specific designed SB-rotary shaft seals, in inch or metric sizes, are available with a 1-2 week turnaround. Expediting service available.

Application-specific and proprietary seal designs are available.  Please contact engineering to get the best seal for your rotary sealing applications.


*Maximum values depend on seal material, seal configuration, media, temperatures, pressures, surface speed and working environment. For maximum seal life expectancy, do not operate your seal beyond 75% of any of its operating limits.  Please consult engineering or call 1-800-283-7140 for advice.


**In corrosive media or extreme low temperatures, the elastomer o-ring can be protected from the media or replaced by incorporating a springenergized seal design in the outside seal diameter of the seal. Please consult engineering or call 1-800-283-7140 for advice.


American High Performance Seals assumes no obligation or liability for any advice furnished or results obtained with respect to these products. All such advice is given and accepted at the buyer’s risk.

This information, based on our experience, is offered as part of our service to customers. It is intended for use by persons having technical skill, at their own discretion and risk. We do not guarantee favorable results, and we assume no liability in connection with its use.