Pneumatic Seal E7
The self-retaining E7 rod seal/wiper is a version of the profil EU for extreme working conditions with regard to temperature and chemical resistance and dry running.It performs three functions simulatenously:
Sealing, wiping, fixing.
• Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
• Bi-functional element: seal and wiper.
• No risk of corrosion since the combined retainer and wiper part eliminates the need for additional wire circlips.
• Minimal break-away and dynamic friction and no stick-slip tendency ensures uniform motion even at low speeds.
• Easy snap assembly without assembly aids.
• Product geometry prevents dirt deposits at the front face of the cylinder.
• Identical housing for E7, E8, E9, EU, EF,EN, EW and ET.
| Range of application | |
| Operating pressure | ≤ 16 bar |
| Operating temperature | |
| E7 Z4017 | -30 °C to +80 °C |
| E7 Z4016 | -35 °C to +200 °C |
| Sliding speed | |
| E7 Z4017 | ≤ 4 m/s |
| E7 Z4016 | ≤ 10 m/s |
| Media | Compressed air, both lubricated and oil free (after greasing for fitting) |
Installation
The rod seal/wiper E7 is pushed into the housing with a circlip recess conforming to DIN 7993 (type B) and retained by the easy-to-snap in retainer ridge.During assembly, care should be taken that neither the wiper nor the sealing lips be damaged by being pushed over any sharp edges.
| d, | D, | H, | D1, | L1, | L2, | R, | f, |
| 10 | 18 | 10.7 | 20 | 8.8 | 13 | 1.1 | 1.5 |
| 12 | 20 | 10.7 | 22 | 8.8 | 13 | 1.1 | 1.5 |
| 12 | 22 | 10.7 | 24 | 8.8 | 13 | 1.1 | 1.5 |
| 14 | 24 | 10.7 | 26 | 8.8 | 13 | 1.1 | 1.5 |
| 16 | 26 | 10.7 | 28 | 8.8 | 13 | 1.1 | 1.5 |
| 18 | 28 | 10.7 | 30 | 8.8 | 13 | 1.1 | 1.5 |
| 20 | 30 | 10.7 | 32 | 8.8 | 13 | 1.1 | 1.5 |
| 22 | 32 | 11.2 | 34.5 | 9.4 | 14 | 1.4 | 2 |
| 25 | 35 | 11.2 | 37.5 | 9.4 | 14 | 1.4 | 2 |
| 30 | 40 | 11.2 | 42.5 | 9.4 | 14 | 1.4 | 2 |
| 32 | 42 | 11.2 | 44.5 | 9.4 | 14 | 1.4 | 2 |
| 40 | 50 | 11.2 | 52.5 | 9.4 | 14 | 1.4 | 2 |
| 45 | 55 | 12.2 | 58.2 | 10.4 | 15 | 1.8 | 2 |
| 50 | 60 | 12.2 | 63.2 | 10.4 | 15 | 1.8 | 2 |
| 63 | 75 | 13 | 78.2 | 11.4 | 16 | 1.8 | 2 |