Mastering dry running

Lip seal systems

This sealing technology supplements our delivery program with sealing solutions specifically for applications with low speed and the risk of dry running or inadequate lubrication with a liquid medium.

Foundations for success

Technological concept

The combination of a lip made from a PTFE compound combined with the outstanding properties of a solid silicon carbide shaft sleeve is the basis for our successful technological concept.

Stainless steel vs silicon carbide
Wellenlippen-Dichtungs-Systeme: Edelstahl vs Siliziumkarbid

The plastic PTFE is characterized by low friction, non-stick properties and dry running capacity (without liquid media). Silicon carbide has the highest hardness among technical materials after diamond and, thanks to excellent thermal conductivity (5x better than stainless steel), can quickly dissipate and distribute the frictional heat from the point of origin in the contact area.

Versatile design

Design features

  • Ready-to-install sealing system
  • Silicon carbide shaft sleeve
  • simple design
  • Vacuum up to 20 bar
  • Dry running properties
  • Resistant to adhesions
  • Resistant to corrosion and heat
  • Gaseous barrier possible
Adaptable models

Technical Designs

  • Standard version with pre-seal
  • Cartridge versions with integrated storage
  • Designs to compensate for increased radial displacements
  • Dry running seals for high speeds with separate cooling using liquid media
  • TA Luft versions
  • ATEX versions
  • Metal-free structures
  • CIP and SIP capable
Cost-optimized units for series products

Complete systems

In the area of mixing and stirring technology as well as in special pump applications, there are innovative options for manufacturing compact and cost-effective sealing units.
We configure these together with the machine manufacturer
to an individual system, which is delivered exclusively.

Important areas of operation

Applications

  • Vertical pumps
  • Dry suction pumps
  • Pumps with risk of running dry
  • Mixers and agitators
  • Vacuum technology
  • Pharmaceutical applications with gas barrier
  • Hygienic designs
METAX designs

Your benefits

  • Pre-assembled units prevent damage to sensitive PTFE lips during assembly
  • In certain applications, METAX
    Systems significantly superior to other sealing concepts
  • Significantly reduced installation costs due to the use of a gas lock for seals that require a barrier medium due to environmental, hygiene or safety requirements