eMG - e for excellent

The new elastomer bellows pump seals

Often copied – never duplicated: Our MG elastomer bellows mechanical seals have been on the market for more than 40 years. With more than 60 million units sold, they have become a recognized, leading standard for pump seals. So there is no need for improvement? We did it anyway.


Numerous improved features since we only offer the best


The new elastomer bellows pump seals


The eMG pump seal series: The new sealing standard for pumps - 100 percent compatible with the predecessor series MG, higher performing and more widely applicable.


Our eMG elastomer bellows mechanical seals again set the standard for pump seals as the next generation of the MG series. Optimized construction features, an advanced bellows design and the use of innovative high-performance materials significantly expand the spectrum of use. An additional plus: maximum reliability and safety even while operating under extreme conditions.   


Strengths and highlights of the new eMG pump seals 


Optimized bellows design, high-quality materials

The specially developed bellows design has always been one of the secrets to the success of the MG series. We further perfected the bellows for the new eMG generation.

  • High-tech elastomers: Superior quality through EagleBurgmann’s in-house specifications for raw materials, mixing and production processes
  • Bellows geometry: FEM-optimized, free of torsional stress
  • Special design protects the seal face during installation
  • Protection of shaft across the entire seal length
  • Reduced outer diameter of seal shoulder enables direct bellows support through retaining ring or smaller spacer rings

Patented PEEK-PTFE disk

The patented PEEK-PTFE disk guarantees outstanding slipping behavior and always precise performance in every operating state.

  • The PEEK-PTFE disk stabilizes and centers the seal on the shaft
  • Optimized slipping behavior with axial shaft movements – ideal for start/stop operation
  • Minimized axial stick/slip effect even when the shaft is soiled
  • Highly resistant PEEK-PTFE compound with lowest friction coefficient of all solid materials and high mechanical strength and rigidity

High-performance eSiC-Q7 sliding material

The high-performance eSiC-Q7 sliding material has a unique material structure and is standard for the slide ring and seat.

  • Outstanding tribological properties
  • Up to 50% longer operating times compared to SiC materials (e.g. Q1)
  • Expanded emergency operation in case of inadequate lubrication or partial dry-running
  • Significantly reduced friction coefficient with less energy absorption and heating in sealing gap

Ultimate option: DiamondFace sliding surface technology

DiamondFace is a unique microcrystalline diamond technology that increases the life of sliding rings several times over. This option is recommendable in cases of insufficient lubrication, partial dry running, abrasive media or electrical corrosion.

  • Extreme hardness, excellent wear resistance
  • Exceedingly low friction coefficient
  • Excellent thermal conductivity
  • Outstanding coating adhesion
  • Maximum chemical resistance
  • Outstanding resistance to electrochemical corrosion

Best-in-class seal design

e as in excellent – and the result of decades of experience from millions of applications with a wide range of media and operating parameters. Other features that improve performance:

  • Approximately 50% more sliding ring overhang in comparison to the previous series, offering an effective transmission of heat to the sliding ring which makes it highly suitable for use in hot media
  • Torque transmitted by the bellows shoulder – no stress introduced into the bellows fold
  • Special bellows fold for additional vibration suppression
  • Excellent self-cleaning – no soiling or jamming


Fully developed series – a kit for every need

The eMG series is a comprehensive seal line with elastomer bellows seals of different installation lengths, also available as eRMG variants with a special bellows for use in hot water. 

A new addition to the product line: eMG seals for particularly small seal installation spaces. Featuring the same technical properties as the eMG®1, even with 20% less overall length. 

All of the seals can also be used as a double seal in a tandem or back-to-back arrangement. Customized materials and designs are also possible.

eMG – e for efficient

The standard designs and materials of the new eMG series cover an extremely broad spectrum of uses. Applications in which several types of seals had to be used can now generally be covered by a single eMG design. The benefit: Streamlined procurement processes, and simplified storage and installation, and a reduced overall capital outlay. Why wait?

Profit from the strengths of the new eMG series for pumps!


Technical details

The eMG mechanical seals for pumps come in a variety of installation lengths with a special bellows surface for hot-water applications. Here is a summary of the various applications, materials, standards and approvals as well as other technical details.

eMG seals


Changing to the new eMG generation:
straightforward and easy

Are you already using seals from the old MG series? The new eMG series is 100% compatible. No adaptation is required for the change. We will gladly assist you with further advice and information.


We are happy to advise you

Would you like personal advice, do you have any questions or would you like to order directly? We look forward to supporting you.

Contact an expert Show locations

Xylem Supplier Award for EagleBurgmann

 Xylem has been successfully relying on the MG/eMG series from EagleBurgmann for almost a decade. We have now been presented with the supplier award.

Read more

Successful switch to eMG at Grundfos

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