sleeve type SMU

Self-sealing connection element for gas pipelines.

The Schuck sleeve type SMU provides pure safety. It makes connecting, repairing, splitting or decommissioning a pipeline under pressure up to one bar very easy. The screwless, self-sealing connecting element captivates with its pure simplicity and ingeniously functioning sealing principle. The roll rings are not destroyed by professional welding (also autogenous) and thus the line can be welded under pressure safely and sustainably.

  • PN 16 to PN 100
  • DN 25 to DN 400
  • Temperature range from -10 ° C to + 50 ° C
  • Processing pressure up to 1 bar
  • Operating medium gas (fluid group 1)
  • For larger DN 400 see “SU”
  • For pressures up to 4 bar see “SMH”
  • Time and cost savings
  • Significantly reduced risk of accidents
  • Safe alternative to costly beading and entangling
  • Connecting different diameters in the repair of older lines quickly and easily possible
  • Enables fast commissioning of the pipe network
  • Elaborate bypass lines can be omitted


  • hot rolled design
  • From PN 40 made of twisted collar rings according to AD leaflet W 13 with welded-in pipe sections
  • Acceptance to EN 10204 3.1 / 3.2 from PN 40 DN 250
  • TÜV approved, process inspection available
  • Materials according to DIN EN 10305/1 and DIN EN 10305/2, EN 10216/2, DIN 1629, DIN 1626 and DIN 2391C or equivalent
  • Roll rings made of sponge rubber (EPDM) DIN 4060