X-Ecopur® (TPU)
Compared to PTFE solutions, X-Ecopur®
composite seals show the same material hardness but considerably lower
residual deformation and need lower mounting forces. An additional
benefit is the resistance to damage on assembly and installation, which
can be a major problem with PTFE compounds. Also there is no requirement
for sizing or calibrating the seals after assembly. Compared to
standard materials harder grades show nearly the same tensile strength
and elongation at break at a considerably higher 100% modulus of strain
as well as higher tear strength. The tensile set is for instance on the
same level as with standard materials. X-Ecopur®
versions have higher extrusion resistance than standard materials and
therefore allow higher pressure at same geometries. Composite
seals made of X-ECOPUR® polyurethanes are an ideal alternative to PTFE
solutions, if temperature range and used media do not require PTFE
systems.
Available data
and MSDS in pdf format
[56 KB].
Advantages of composite seals made of optimized X-Ecopur®
polyurethane materials
• 3 Materials available: (X-Ecopur-57D®,
XH-Ecopur-60D®, XS-Ecopur-57D®)
• available as single piece or small/medium quantities
with short delivery times
• low cost as molded production for high quantities • able to operate higher pressure or larger extrusion
gap • greater longevity • available up to a diameter of 4 meters
Comparison to PTFE-solutions Residual Deformation • considerably lower tensile set at same material
hardness
Excellent fitting Properties • Insensibility against damage on assembly and
installation, no tools necessary
Leakage • Low leakage-values
• Extrusion stability Friction / Wear Resistance
• Superior abrasion resistance of the polyurethane
material Stick-slip Characteristics
• Stick-slip characteristics comparable with
conventional PTFE seals
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