English
Variseal® W is a single-acting piston seal energized by a Slantcoil® spring. The advantage of the Variseal® W lies in its low friction and relatively constant preloading force over a relatively large deformation range. The seal is used wherever friction has to be kept within a narrow tolerance zone, for instance in pressure switches. Available in Turcon® or Zurcon® materials.
Piston/Variseal®:
Groove Diameter Outside140 mm
Signature StandardPVW401400-T78S
TSS Article Number (3 to 9)W401400
Quality (10th Digit)-
Type of Article0
Root Groove Inside Diameter127.8 mm
Root Groove Outside Diameter140 mm
Root Groove Width9.5 mm
Article GroupPV
Groove Diameter Inside127.8 mm
Groove Width9.5 mm
Compound codeT78S
Material Information for the product(s) on this page
T78
Gravity Unit:
g/cm³
Material Code Class:
Thermoplastic
Ball Hardness:
30
Color:
Tan to Dark Brown
Specific Gravity:
1.96
Material Type:
PTFE
Gravity Tolerance:
+/-0.04
Minimum Temperature:
-200
Maximum Temperature:
260
Material:
T78