Click image to enlarge
| Item | Part no. to DIN 24250 | Description |
|---|---|---|
| 1.1 | 472 | Seal face |
| 1.2 | 412.1 | O-Ring |
| 1.3 | 474 | Thrust ring |
| 1.4 | 478 | Righthand spring |
| 1.4 | 479 | Lefthand spring |
| 2 | 475 | Seat (G9) |
| 3 | 412.2 | O-Ring |
M2N
Features
- For plain shafts
- Single seal
- Unbalanced
- Conical spring rotating
- Dependent on direction of rotation
Advantages
- Economical seal solution
- No damage of the shaft by set screws
- Short installation length possible (G16)
Operating range
Shaft diameter:
d1 = 6 ... 38 mm (0.25" ... 1.5")
Pressure: p1 = 10 bar (145 PSI)
Temperature:
t = -20 °C ... 140 °C
(-4 °F ... 355 °F)
Sliding velocity:
vg = 15 m/s (50 ft/s)
Axial movement: ±1.0 mm
Materials
Seal face: Carbon graphite resin impregnated (B)
Seat G9: Silicon carbide (Q1, Q2),
Special cast CrMo steel (S), Aluminium oxide (V)
Standards and approvals
- EN 12756
Recommended applications
- Pulp and paper industry
- Water and waste water technology
- Building services industry
- Water pumps
- Heating circulation pumps
Product variants
M2
Rotating unit M2 with seat G4 or G16 (shorter installation length).
Seal face:
Carbon graphite resin impregnated (B)
Seat G4:
Silicon carbide (Q1), Special cast CrMo steel (S)
Seat G16:
Silicon carbide (Q1, Q2), Special cast CrMo steel (S), Aluminium oxide (V)
M2N4
Rotating unit M2 with seat G6.
Seal face:
Carbon graphite resin impregnated (B)
Seat G6:
Silicon carbide (Q1), Special cast CrMo steel (S)
Click image to enlarge
G6 (EN 12756)
Click image to enlarge
G4
Click image to enlarge
G16 (EN 12756)
Click image to enlarge
d1 |
d3 |
d6 |
d7 |
d8 |
d11 |
d12 |
db |
db |
l31) |
l5 |
l6 |
l7 |
l8 |
l10 |
l12 |
l14 |
l15 |
l16 |
l18 |
l19 |
l211) |
l28 |
b |
R |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 15 | – | – | – | 11.8 | 16.0 | 8 | – | – | – | – | – | – | – | 6.5 | 5.6 | 1.2 | 3.8 | – | – | 10.9 | – | – | 1.2 |
| 8 | 18 | – | – | – | 15.5 | 19.2 | 11 | – | – | – | – | – | – | – | 8.0 | 7.0 | 1.2 | 3.8 | – | – | 15.5 | – | – | 1.2 |
| 10 | 20 | 17 | 21 | 3 | 15.5 | 19.2 | 13 | 40 | 17.5 | 1.5 | 4 | 8.5 | 17.5 | 7.5 | 7.5 | 6.6 | 1.2 | 3.8 | – | – | 15.9 | 6.6 | 8 | 1.2 |
| 12 | 22 | 19 | 23 | 3 | 17.5 | 21.6 | 16 | 40 | 17.5 | 1.5 | 4 | 8.5 | 17.5 | 7.5 | 8.0 | 7.0 | 1.2 | 3.8 | – | – | 16.0 | 6.6 | 8 | 1.2 |
| 14 | 25 | 21 | 25 | 3 | 20.5 | 24.6 | 18 | 40 | 17.5 | 1.5 | 4 | 8.5 | 17.5 | 7.5 | 8.0 | 7.0 | 1.2 | 3.8 | – | – | 16.0 | 6.6 | 8 | 1.2 |
| 15 | 27 | – | – | – | 20.5 | 24.6 | 19 | – | – | – | – | – | – | – | 7.5 | 6.6 | 1.2 | 3.8 | – | – | 17.4 | – | – | 1.2 |
| 16 | 27 | 23 | 27 | 3 | 22.0 | 28.0 | 21 | 40 | 19.5 | 1.5 | 4 | 8.5 | 17.5 | 7.5 | 8.5 | 7.5 | 1.5 | 5.0 | – | – | 19.0 | 6.6 | 8 | 1.5 |
| 18 | 30 | 27 | 33 | 3 | 24.0 | 30.0 | 23 | 45 | 20.5 | 2.0 | 5 | 9.0 | 19.5 | 8.5 | 9.0 | 8.0 | 1.5 | 5.0 | 15 | 7 | 20.5 | 7.5 | 8 | 1.5 |
| 20 | 32 | 29 | 35 | 3 | 29.5 | 35.0 | 26 | 45 | 22.0 | 2.0 | 5 | 9.0 | 19.5 | 8.5 | 8.5 | 7.5 | 1.5 | 5.0 | 15 | 7 | 22.0 | 7.5 | 8 | 1.5 |
| 22 | 35 | 31 | 37 | 3 | 29.5 | 35.0 | 28 | 45 | 23.5 | 2.0 | 5 | 9.0 | 19.5 | 8.5 | 8.5 | 7.5 | 1.5 | 5.0 | 15 | 7 | 23.5 | 7.5 | 8 | 1.5 |
| 24 | 38 | 33 | 39 | 3 | 32.0 | 38.0 | 30 | 50 | 25.0 | 2.0 | 5 | 9.0 | 19.5 | 8.5 | 8.5 | 7.5 | 1.5 | 5.0 | 15 | 7 | 25.0 | 7.5 | 8 | 1.5 |
| 25 | 40 | 34 | 40 | 3 | 32.0 | 38.0 | 31 | 50 | 26.5 | 2.0 | 5 | 9.0 | 19.5 | 8.5 | 8.5 | 7.5 | 1.5 | 5.0 | 15 | 7 | 26.5 | 7.5 | 8 | 1.5 |
| 26 | 41 | – | – | – | 34.0 | 40.0 | 32 | – | – | – | – | – | – | – | 9.0 | 8.0 | 1.5 | 5.0 | – | – | 26.5 | – | – | 1.5 |
| 28 | 43 | 37 | 43 | 3 | 36.0 | 42.0 | 35 | 50 | 26.5 | 2.0 | 5 | 9.0 | 19.5 | 8.5 | 10.0 | 9.0 | 1.5 | 5.0 | 15 | 7 | 26.5 | 7.5 | 8 | 1.5 |
| 30 | 47 | – | – | – | 39.2 | 45.0 | 37 | – | – | – | – | – | – | – | 11.5 | 10.5 | 1.5 | 5.0 | 15 | 7 | 25.0 | – | – | 1.5 |
| 32 | 48 | – | – | – | 42.2 | 48.0 | 39 | – | – | – | – | – | – | – | 13.0 | 10.5 | 1.5 | 5.0 | 15 | 7 | 28.5 | – | – | 1.5 |
| 35 | 53 | – | – | – | 46.2 | 52.0 | 43 | – | – | – | – | – | – | – | 13.5 | 11.0 | 1.5 | 5.0 | 15 | 7 | 28.5 | – | – | 1.5 |
| 38 | 56 | – | – | – | 49.2 | 55.0 | 47 | – | – | – | – | – | – | – | 13.0 | 10.3 | 1.5 | 5.0 | 16 | 8 | 32.0 | – | – | 1.5 |
Dimensions in Millimeter 1) l~3~ valid for M2N, l~21~ valid for M2