For compressor seal applications that operate under high pressure, cyclic loading, and limited lubrication, standard unfilled PTFE tube often fails from creep or accelerated wear. Engineers therefore upgrade to aromatic polyester PTFE tubing to gain higher load capacity and better dimensional stability. When the seal must hold tight clearances across long service intervals, an Ekonol filled PTFE tube low creep grade is the preferred upgrade because the aromatic polyester filler resists cold flow far more effectively than glass or carbon fillers. As a dedicated 10% Ekonol PTFE tube supplier, we provide a high wear Ekonol PTFE tube with tightly controlled filler content, uniform wall thickness, and a machined surface finish that supports reliable sealing in reciprocating and rotary compressors. This tube is particularly suited for piston rings, rider rings, and rod packing where friction, extrusion, and chemical attack occur at the same time.
The 10% Ekonol PTFE tube is manufactured from compounded resin that combines virgin PTFE with 10% by weight of Ekonol aromatic polyester powder. The filler increases compressive strength, hardness, and wear resistance while retaining a low coefficient of friction against steel and hardened counterfaces. In compressor seal service, this translates to less seal leakage, lower power consumption, and fewer unplanned shutdowns caused by premature seal wear. The material is stress-relieved before final machining to minimize dimensional change during operation, and each batch is inspected for density, tensile strength, and filler dispersion. Available in hollow bar form, the 10% Ekonol PTFE tube can be cut or machined into split rings, step-cut rings, and custom seal profiles without delamination or surface tearing. It also withstands exposure to mineral oils, synthetic lubricants, refrigerants, natural gas, and many aggressive process gases at continuous temperatures from -50°C to +200°C. This combination of mechanical stability, chemical resistance, and machinability makes it a reliable choice for oil-free and dry-running compressor seal systems.
Key Benefits for Compressor Seal Performance
Typical Technical Data
| Property | Test Method | Typical Value |
|---|---|---|
| Base Resin | Internal QC | Virgin PTFE |
| Filler Type | Internal QC | Ekonol (aromatic polyester) |
| Filler Content | Internal QC | 10% by weight |
| Density | ASTM D792 | 2.05 g/cm³ |
| Tensile Strength | ASTM D4894 | 20 MPa |
| Elongation at Break | ASTM D4894 | 150% |
| Hardness | ASTM D2240 | 64 Shore D |
| Coefficient of Friction (dry) | ASTM D1894 | 0.06 – 0.10 |
| Continuous Service Temperature | Thermal stability | -50°C to +200°C |
| Color | Visual | Off-white / beige |
| Available ID Range | Machining | 4 mm – 250 mm |
| Available Wall Thickness | Machining | 1 mm – 30 mm |