2.03
Kolpac (piston seal) and Sopac (rod seal) are mutually acting seal elements consisting of a elastomer circular seal ring for the static pressure contact and a PTFE ring for the dynamic sealing. The O-ring guarantees the pre-stressing for the seal and the necessary elasticity. Because of its static application, all circular seal ring materials can be used. As a consequence a high chemical and temperature resistance can be reached according to the choosing of the material. The known and good qualities of the PTFE material are effective in the dynamic acting slide ring. The static and the dynamic coefficient of friction are almost the same. Thereby a regular, undisturbed movement (no stick-slip) is guaranteed, even at slow surface speeds. After a longer standstill a calm starting is also secured.
ADVANTAGES ARE
- small fitting area
- high availability also in intermediate sizes
- universal chemical resistance
- high resistance to temperature
- good dry operation attributes
- high security from extrusion
- small breakaway torques and sliding friction
- no stick-slip even at low speed
- small abrasion
| APPLICATION RANGE | |
| Working pressure: | ≤ 25 MPa (250 bar) |
| Reinforced construction up to 400 bar and more | |
| Working temperature: | - 35 °C to + 100 °C |
| - 25 °C to + 200 °C (depending on the O-ring) | |
| Surface speed: | ≤ 3 m/s continuous |
| ≤ 10 m/s intermittent | |
| Media: | all hydraulic fluids, e.g. water, oils, water-oilemulsions, |
| flame-proof hydro-oils etc. (depending on the O-ring compound) | |
With this seal we recommend the use of guide elements.
In general for pneumatic and hydraulic cylinders, pneumatic and hydraulic controllers, regulating, safety and pilot valves, fittings, hydraulic pressings, machine tools, water hydraulics, construction machines, etc. Kolpac and Sopac are well suited for the sealing of oscillating spindles (e.g. fittings).
| MATERIAL | |
| Slide ring: | PT044 |
| O-ring: | NBR-elastomer with approx. 70 Shore A |
INSTALLATION
To avoid the damaging of the seal sharp edges may not be overrun. Normally Kolpac and Sopac are mountable on closed grooves from a diameter of 50 mm. On special conditions the use of assembly aids is recommendable.
For special cases of application (high temperatures, speed, specific pressure, use in water, HFA-, HFB-fluids etc.) please get in contact with our consultancy service.
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Download | Detailed product information (PDF 568.1 kB)
