Stepseal®2K was originally developed and patented by Trelleborg Sealing Solutions as a rod seal. Due to its outstanding properties it is well suited as a single-acting piston seal where high demands are made on positional accuracy and free movement. Available in Turcon® or Zurcon® materials. The O-Ring is not included with this item.
Piston/Stepseal®/Turcon®:
Groove Diameter Outside250 mm
Ring Width7.6 mm
Signature StandardPSK402500-T29
TSS Article Number (3 to 9)K402500
Quality (10th Digit)-
Type of Article0
Root Ring Inside Diameter241.65 mm
Root Groove Inside Diameter229.5 mm
Root Groove Outside Diameter250 mm
Root Groove Thickness10.25 mm
Root Groove Width8.1 mm
Groove Diameter Inside229.5 mm
Article GroupPS
Root Ring Length0 mm
Legacy ID from KOM2PSK402500-T29
Root Ring Outside Diameter251.15 mm
Root Ring Thickness4.75 mm
Root Ring Width7.6 mm
Ring Thickness4.75 mm
Groove Thickness10.25 mm
Groove Width8.1 mm
Ring Length0 mm
Seals Helsingor Material Class:
Seal Tube OD Tolerance Max50 mm
Seal Tube ID Tolerance Min-50 mm
Seal Tube OD Tolerance From254.15 mm
Seal Tube ID Tolerance Max-3 mm
Seal Tube OD Tolerance Min3 mm
Ring Diameter Outside251.15 mm
Seal Tube OD Tolerance To301.15 mm
Seal Tube ID Tolerance To238.65 mm
Seal Tube ID Tolerance From191.65 mm
Ring Diameter Inside241.65 mm
Class Dependencies200000041310
Material Number200000041310
Compound Type110
Compound codeT29