Piston seals - KD double acting
Selection
Diameter DH9
| Standard design | Light-duty design | Heavy-duty design | Groove root ø d h9 | Groove width E+0,2 | O-Ring Cord thickness ø D1 |
| 8 - 14,9 | 15 - 39,9 | ø D - 4,9 | 2,2 | 1,78 | |
| 15 - 39,9 | 40 - 79,9 | ø D - 7,5 | 3,2 | 2,62 | |
| 40 - 79,9 | 80 - 132,9 | 15 - 39,9 | ø D - 11,0 | 4,2 | 3,53 |
| 80 - 132,9 | 133 - 329,9 | 40 - 79,9 | ø D - 15,5 | 6,3 | 5,33 |
| 133 - 329,9 | 330 - 669,9 | 80 - 132,9 | ø D - 21,0 | 8,1 | 7,00 |
| 330 - 669,9 | 670 - 999,9 | 133 - 329,9 | ø D - 24,5 | 8,1 | 7,00 |
| 670 - 999,9 | 330 - 669,9 | ø D - 28,0 | 9,5 | 8,50 |
Gap dimension "s" / radius "R"
| Groove width E+0,2 | Gap "s" 0 - 20 MPa | Gap "s" 20 - 40 MPa | Radius R |
| 2,2 | 0,3 - 0,2 | 0,2 - 0,1 | 0,3 - 0,5 |
| 3,2 | 0,4 - 0,2 | 0,2 - 0,1 | 0,5 - 0,8 |
| 4,2 | 0,4 - 0,2 | 0,3 - 0,1 | 0,8 - 1,2 |
| 6,3 | 0,5 - 0,3 | 0,3 - 0,2 | 1,2 - 1,5 |
| 8,1 | 0,5 - 0,3 | 0,3 - 0,2 | 1,5 - 2,0 |
| 8,1 | 0,6 - 0,3 | 0,4 - 0,2 | 1,5 - 2,0 |
| 9,5 | 0,7 - 0,4 | 0,4 - 0,3 | 2,0 - 3,0 |
All piston seals are supplied as standard with an O-ring of NBR, 70 Shore. O-rings of special materials such as Viton must be separately specified!
Piston seals / Ordering example: | Material | |
| KD - 63 x 52 x 4,2 - BR Piston seal for piston diameter of ø 63 / PTFE-Bronze / Standard design KD - 63 x 47,5 x 6,3 - K Piston seal for piston diameter of ø 63 / PTFE-Carbon / Heavy-duty design | PTFE - Bronze PTFE - Carbon-fibre PU - Polyurethan+graphite (Special material; note modified material properties and technical specifications) | BR C GF KF
PU PUG |
Directives
All information and values stated concerning our product portfolio are based on the knowledge optained through a long experience of manufacturing and application.
These figures are for indicative purposes only and may vary (exceed or deceed) according to the particular circumstances. Unknown factors in the applications and practice can considerably change the conditions and reduce and change statements, which may cause the above information to be invalid.
No liability can be accepted for any mistakes or omissions, error and subject to change without prior notice.
News
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