Features
For top entry drives, type M481 to DIN
Single or double seals
Unbalanced
Independent of direction of rotation
Multiple springs rotating
Liquid-lubricated
Cartridge unit
Advantages
Ready-to-fit and factory-tested units
Available with or without floating bearing
Suitable for standardizations
FDA certification
Double seals can be applied at higher pressure and rotating speed than specified by DIN
Due to the hydraulic conditions, product pressure as well overlaying barrier pressure closes the seal.
Operating range
DIN 28138 T2
Shaft diameter:
d3 = 40 ... 220 mm (1,57" .... 8,66")
Single seals:
Pressure:
p1 = vacuum ... 6 bar (87 PSI), p3 = pressureless
Temperature:
t1* = -40 °C ... +150 (250) °C
(-40 °F ... +302 (482) °F)
Double seals:
Pressure:
p1 = vacuum ... 16 bar (232 PSI),
p3 = max. 18 bar (261 PSI)
Temperature:
t1* = -40 °C ... +200 (350) °C
(-40 °F ... +392 (662) °F)
Sliding velocity:
vg = 0 ... 5 m/s (0 ... 16 ft/s)
For applications beyond this range, please inquire.
* Higher or lower temperatures on request.
Materials
According to application and customer's specification.
Recommended applications
Refining technology
Petrochemical industry
Chemical industry
Pharmaceutical industry
Food and beverage industry
Non-toxic media with single seal
Toxic media with double seal
Agitators
Reactors
Service
provide specialised design
provide processing service according to constomer's need
Dimensions in mm | |||||||||||||||
d31) |
d71) |
d1 |
n x d2 |
d4 |
d0 |
k |
L1 |
L2 |
Lw2) |
I1 |
I2 |
a |
M1 |
M2 |
A. B |
40 |
38 |
175 |
4 x 18 |
110 |
90 |
145 |
87 |
136 |
143 |
15 |
28 |
122 |
M12 |
M16 |
G3/8 |
50 |
48 |
240 |
8 x 18 |
176 |
135 |
210 |
89 |
149 |
148 |
17 |
28 |
157 |
M12 |
M16 |
G3/8 |
60 |
58 |
240 |
8 x 18 |
176 |
135 |
210 |
93.5 |
156 |
158 |
17 |
28 |
168 |
M12 |
M16 |
G3/8 |
80 |
78 |
275 |
8 x 22 |
204 |
155 |
240 |
104.5 |
189 |
168 |
20 |
34 |
203 |
M16 |
M20 |
G1/2 |
100 |
98 |
305 |
8 x 22 |
234 |
190 |
270 |
109 |
190 |
178 |
20 |
34 |
228 |
M16 |
M20 |
G1/2 |
125 |
120 |
330 |
8 x 22 |
260 |
215 |
295 |
110 |
205 |
203 |
20 |
40 |
268 |
M20 |
M20 |
G1/2 |
140 |
135 |
395 |
12 x 22 |
313 |
250 |
350 |
124 |
222 |
208 |
20 |
40 |
285 |
M20 |
M20 |
G1/2 |
160 |
150 |
395 |
12 x 22 |
313 |
265 |
350 |
127.5 |
219.5 |
213 |
25 |
40 |
297 |
M20 |
M20 |
G1/2 |
180 |
170 |
445 |
12 x 22 |
364 |
310 |
400 |
132.5 |
230 |
233 |
25 |
45 |
332 |
M24 |
M20 |
G1/2 |
200 |
190 |
445 |
12 x 22 |
364 |
310 |
400 |
137.5 |
237.5 |
243 |
25 |
45 |
352 |
M24 |
M20 |
G1/2 |
220 |
210 |
505 |
16 x 22 |
422 |
340 |
460 |
149.5 |
249.5 |
263 |
25 |
50 |
381 |
M24 |
M20 |
G1/2 |
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